Using O (partial Combustion) Or Steam Patents (Class 585/652)
  • Patent number: 11186786
    Abstract: A method of converting naphtha is disclosed. The method includes heating the naphtha in stages in different heating units. The naphtha is vaporized in the first heating unit. And the vaporized naphtha undergoes the largest temperature change of the process in the second heating unit. A third heating unit can be a part of the reactor. The reactor includes a catalyst which is contacted with the pre-heated naphtha to convert it to C2 to C4 olefins.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: November 30, 2021
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Talal Al-Shammari, Talal Aldugman
  • Patent number: 10941357
    Abstract: Disclosed is a process for converting C2-5 alkanes to higher-value C5-24+ hydrocarbon fuels and fuel blendstocks including reacting the C2-5 alkanes in a thermal olefination reactor operating at a temperature, pressure and space velocity to convent the alkanes to olefins and in the absence of both a dehydrogenation catalyst and steam. At least a portion of the product olefin stream is oligomerized using a zeolite catalyst to crack, oligomerize and cyclize the product olefins to form the fuel products, which are then recovered. The process is useful in removing sulfur and nitrogen-based compounds in a single step process, while reducing total costs of processing and eliminating the need for additives used in the field.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: March 9, 2021
    Assignee: SWIFT FUELS, LLC
    Inventors: Chris D'Acosta, Jeffery Miller, Kurtis Sluss, Benjamin Wegenhart
  • Patent number: 10358607
    Abstract: A filter for filtering pyrolysis oil and an arrangement. The filter is a split-flow filter (1, 1a, 1b), comprising a filter element (12), comprising plurality of apertures (17) extending through the filter element (12), a receiving channel (13) for receiving a flow (F) of pyrolysis oil to be filtered and for supplying said flow on first side (A) of the filter element (12), a main discharge channel (14) arranged on the first side (A) of the filter element (12) for discharging the portion of the flow (F) of pyrolysis oil having not penetrated through the filter element (12), and a filtrate channel (15) arranged on second side (B) of the filter element (12) for discharging the portion of the flow (F) of pyrolysis oil having penetrated through the filter element (12).
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: July 23, 2019
    Assignee: Valmet Technologies Oy
    Inventors: Teppo Riihimaeki, Antti Kaura, Lauri Kokko, Joakim Autio
  • Patent number: 8921632
    Abstract: 1-butene is recovered as a purified product from an MTO synthesis and especially from an integrated MTO synthesis and hydrocarbon pyrolysis system in which the MTO system and its complementary olefin cracking reactor are combined with a hydrocarbon pyrolysis reactor in a way that facilitates the flexible production and recovery of olefins and other petrochemical products, particularly butene-1 and MTBE.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: December 30, 2014
    Assignee: UOP LLC
    Inventors: Joseph A. Montalbano, Steven Lee Krupa, John Joseph Senetar, Joseph H. Gregor, Andrea G. Bozzano, Gary S. Sandhu
  • Patent number: 8864977
    Abstract: A process for the on-stream decoking of a steam cracking furnace, the steam cracking furnace including multiple tube banks positioned between a hydrocarbon feedstock inlet and a convection section to radiant section crossover, each tube bank including a plurality of tubes arranged within the tube bank, the process comprising the steps of terminating the flow of hydrocarbon feed to a portion of the plurality of tubes of less than all of the multiple tube banks, and supplying a decoking feed comprising steam to the portion of the plurality of tubes of less than all of the multiple tube banks in sufficient amount to effect removal of coke accumulated on the interior of the radiant coils and quench system components fed by such tubes while maintaining a temperature at the convection section to radiant section crossover of below about 788° C. A furnace for the production of ethylene is also provided.
    Type: Grant
    Filed: July 11, 2008
    Date of Patent: October 21, 2014
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventor: David B. Spicer
  • Patent number: 8815080
    Abstract: Processes for production of olefins from hydrocarbon feedstocks are provided. In one aspect, the processes of the present invention utilize coils passing through a pyrolysis furnace to partially convert a hydrocarbon feedstock to olefins, followed by further conversion of the hydrocarbon feedstock in an adiabatic reactor. A portion of the coils in the pyrolysis furnace carry the hydrocarbon feedstock and the remainder carry steam only. After a selected period of time, the material flowing through the coils is switched. By flowing steam through the coils that had previously contained the hydrocarbon feedstock, on-line decoking can occur. In another aspect, a high temperature reactor is used to convert methane or natural gas to olefins.
    Type: Grant
    Filed: January 26, 2009
    Date of Patent: August 26, 2014
    Assignee: Lummus Technology Inc.
    Inventor: Kandasamy Meenakshi Sundaram
  • Patent number: 8814989
    Abstract: A process for removing carbon dioxide (CO2) by means of an absorption medium from a cycle gas system, wherein the CO2 occurs within a process in which, in the gas phase, ethylene is oxidized by oxygen (O2) to ethylene oxide (EO) in the presence of a catalyst, in which, as by product, CO2 is generated, by using as absorption medium an aqueous solution of one or more amines, wherein, for further purification of the cycle gas stream obtained downstream of the CO2 absorption step, this cycle gas stream is brought into intimate contact with water to which no mineral acid and no higher glycol was added.
    Type: Grant
    Filed: May 17, 2011
    Date of Patent: August 26, 2014
    Assignee: BASF SE
    Inventors: Robin Thiele, Gerhard Theis
  • Patent number: 8791314
    Abstract: The present invention concerns an additive for reducing the formation of coke and/or carbon monoxide in thermal hydrocarbon cracking units and/or of other organic compounds in heat exchangers. The additive according to the invention is essentially composed of diethyl disulphide (DEDS) or dipropyl disulphide(s) (DPDS) or dibutyl disulphide(s) (DBDS) and can be used on the metal walls of a cracking reactor and on the metal walls of a heat exchanger placed downstream from the cracking reactor, and during the process of cracking hydrocarbons and/or other organic compounds.
    Type: Grant
    Filed: February 20, 2008
    Date of Patent: July 29, 2014
    Assignee: Arkema France
    Inventors: Georges Fremy, Francis Humblot, Paul-Guillaume Schmitt
  • Publication number: 20140194663
    Abstract: A process for the coupling of hydrocarbons and utilizing the heat energy produced by the reaction is disclosed. In one embodiment the process can include reacting methane with oxygen to form a product stream containing ethane and further processing the ethane to ethylene in an existing ethylene production facility while using the heat energy produced by the reaction within the facility.
    Type: Application
    Filed: March 12, 2014
    Publication date: July 10, 2014
    Applicant: FINA TECHNOLOGY, INC.
    Inventor: James R. Butler
  • Patent number: 8684384
    Abstract: A process for cracking a hydrocarbon feedstream containing non-volatile components in a hydrocarbon cracking furnace having upper and lower convection heating sections within a flue of the furnace, a radiant heating section downstream of and connected to said lower convection heating section, a transfer line exchanger downstream of and connected to said radiant heating section, a furnace box containing furnace burners and said radiant heating section, and a vapor/liquid separator vessel connected between the upper and lower convection heating sections, the process comprising (a) passing said hydrocarbon feedstream into said upper convection section to heat said hydrocarbon feedstream to a first temperature sufficient to flash at least a portion of the hydrocarbons within said hydrocarbon feedstream into a vapor phase to form a vapor/liquid stream; (b) passing said vapor/liquid stream out of said upper convection section and into said vapor/liquid separator to separate said vapor/liquid stream into a hydrocarb
    Type: Grant
    Filed: May 7, 2009
    Date of Patent: April 1, 2014
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: David B. Spicer, Caleb M. Scherer, James M. Frye, Subramanian Annamalai
  • Patent number: 8663456
    Abstract: A hydrocarbon feed is passed to a first zone of a vaporization unit to separate a first vapor stream and a first liquid stream. The first liquid stream is passed to a second zone of the vaporization unit and contacted intimately with a counter-current steam produce a second vapor stream and a second liquid stream. The first vapor stream and the second vapor stream are cracked in the radiant section of the steam cracker to produce a cracked effluent. The second liquid stream is thermally cracked in a coking drum to produce a coker effluent and coke. The coker effluent is separated into a coker gas and a coker liquid. The coker liquid is reacted with hydrogen in the presence of a catalyst to produce a hydroprocessed product. The hydroprocessed product is separated into a gas product and a liquid product. The liquid product is fed to the vaporization unit.
    Type: Grant
    Filed: November 23, 2010
    Date of Patent: March 4, 2014
    Assignee: Equistar Chemicals, LP
    Inventors: Robert S. Bridges, Sellamuthu G. Chellappan
  • Patent number: 8658022
    Abstract: A process for cracking a heavy hydrocarbon feed comprising a vaporization step, a hydroprocessing step, and a steam cracking step is disclosed. The heavy hydrocarbon feed is passed to a first zone of a vaporization unit to separate a first vapor stream and a first liquid stream. The first liquid stream is passed to a second zone of the vaporization unit and contacted intimately with a counter-current steam to produce a second vapor stream and a second liquid stream. The first vapor stream and the second vapor stream are cracked in the radiant section of the steam cracker to produce a cracked effluent. The second liquid stream is reacted with hydrogen in the presence of a catalyst to produce a hydroprocessed product. A liquid hydroprocessed product is fed to the vaporization unit.
    Type: Grant
    Filed: November 23, 2010
    Date of Patent: February 25, 2014
    Assignee: Equistar Chemicals, LP
    Inventors: Robert S. Bridges, Sellamuthu G. Chellappan
  • Patent number: 8658019
    Abstract: A process for cracking a heavy hydrocarbon feed comprising a vaporization step, a coking step, a hydroprocessing step, and a steam cracking step is disclosed.
    Type: Grant
    Filed: November 23, 2010
    Date of Patent: February 25, 2014
    Assignee: Equistar Chemicals, LP
    Inventors: Robert S. Bridges, Sellamuthu G. Chellappan
  • Patent number: 8658023
    Abstract: A hydrocarbon feed is passed to a first zone of a vaporization unit to separate a first vapor stream and a first liquid stream. The first liquid stream is passed to a second zone of the vaporization unit and contacted with a counter-current steam to produce a second vapor stream and a second liquid stream. The first vapor stream and the second vapor stream are cracked in the radiant section of the steam cracker to produce a cracked effluent. The second liquid stream is catalytically cracked to produce a cracked product. The cracked product is distilled to produce an overhead stream, a light cycle oil, and a heavy cycle oil. The light cycle oil is reacted with hydrogen in the presence of a catalyst to produce a hydrotreated light cycle oil. The hydrotreated light cycle oil and the overhead stream are fed to the vaporization unit.
    Type: Grant
    Filed: December 29, 2010
    Date of Patent: February 25, 2014
    Assignee: Equistar Chemicals, LP
    Inventor: Steven T. Coleman
  • Patent number: 8569200
    Abstract: A catalyst for hydrocarbon steam cracking for the production of light olefin, a preparation method of the catalyst and a preparation method of olefin by using the same. More precisely, the present invention relates to a composite catalyst prepared by mixing the oxide catalyst powder represented by CrZrjAkOx (0.5?j?120, 0?k?50, A is a transition metal, x is the number satisfying the condition according to valences of Cr, Zr and A, and values of j and k) and carrier powder and sintering thereof, a composite catalyst wherein the oxide catalyst is impregnated on a carrier, and a method of preparing light olefin such as ethylene and propylene by hydrocarbon steam cracking in the presence of the composite catalyst. The composite catalyst of the present invention has excellent thermal/mechanical stability in the cracking process, and has less inactivation rate by coke and significantly increases light olefin yield.
    Type: Grant
    Filed: December 1, 2011
    Date of Patent: October 29, 2013
    Assignee: LG Chem, Ltd.
    Inventors: Jun-han Kang, Jong-hun Song, Jun-seon Choi, Byoung-gi Park, Chang-hoon Kang, Si-hyun Noh
  • Patent number: 8435386
    Abstract: A process and apparatus for cracking a hydrocarbon feed in a steam cracking furnace by withdrawing a resid-rich stream from a resid knockout vessel and recycling the resid-rich stream through a convection heating section of the furnace.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: May 7, 2013
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Richard C. Stell, David B. Spicer, George Stephens
  • Patent number: 8273936
    Abstract: A process for cracking a heavy hydrocarbon feed is disclosed. The heavy hydrocarbon feed is passed to a first zone of a vaporization unit to separate a first vapor stream and a first liquid stream. The first liquid stream is passed to a second zone of the vaporization unit and contacted intimately with a countercurrent steam to produce a second vapor stream and a second liquid stream. The second vapor stream is contacted with a wash liquid in a rectification section to form a rectified stream. The first vapor stream and the rectified stream are cracked in the radiant section of the steam cracker to produce a cracked effluent.
    Type: Grant
    Filed: November 22, 2010
    Date of Patent: September 25, 2012
    Assignee: Equistar Chemicals, LP
    Inventors: Robert S. Bridges, Steven T. Coleman
  • Patent number: 8198498
    Abstract: A method for producing olefins using a carbon nanotube catalyst is disclosed. Initially, a hydrocarbon feedstock is received. The hydrocarbon feedstock, the carbon nanotube catalyst, and steam are mixed in a thermal cracking reactor. The mixture is heated in the thermal cracking reactor to a particular temperature. The olefins are then separated from the mixture. The carbon nanotube catalyst can include carbon nanotubes coated with M1xOy and modified with M2mOn. M1 can be either the element silicon or tungsten, x can be an integer that represents the oxidation number of M1, and y can an integer that represents the number of oxygen atoms required by the oxidation number of M1. M2 can be a metallic element, m can be an integer that represents the oxidation number of M2, and n can be an integer that represents the number of oxygen atoms required by the oxidation number of M2.
    Type: Grant
    Filed: August 19, 2010
    Date of Patent: June 12, 2012
    Inventors: Kamyar Keyvanloo, Jafar Towfighi Darian, Ali Mohamadalizadeh
  • Publication number: 20120142983
    Abstract: Process for making a bio-diesel and a bio-naphtha and optionally bio-propane from a complex mixture of natural occurring fats & oils, wherein said complex mixture is subjected to a refining treatment for removing the major part of the non-triglyceride and non-fatty acid components, thereby obtaining refined oils; said refined oils are subjected to a fractionation step for obtaining: an unsaturated or substantially unsaturated, liquid or substantially liquid triglyceride part (phase L); and a saturated or substantially saturated, solid or substantially solid triglyceride part (phase S); and said phase L is transformed into alkyl-esters as bio-diesel by a transesterification; said phase S is transformed into linear or substantially linear paraffin's as the bio-naphtha: by an hydrodeoxygenation or from said phase S are obtained fatty acids that are transformed into linear or substantially linear paraffin's as the bio-naphtha by hydrodeoxygenation or decarboxylation of the free fatty acids or from said
    Type: Application
    Filed: July 13, 2010
    Publication date: June 7, 2012
    Applicant: TOTAL PETROCHEMICALS RESEARCH FELUY
    Inventors: Walter Vermeiren, François Bouvart, Nicolas Dubut
  • Patent number: 8158840
    Abstract: A process and apparatus for steam cracking liquid hydrocarbon feedstocks utilizes a vapor/liquid separation apparatus to treat heated vapor/liquid mixtures to provide an overhead of reduced residue content and includes: i) indirectly heat exchanging liquid bottoms with boiler feed water to provide cooled liquid bottoms and preheated boiler feed water; ii) directing at least a portion of said preheated boiler feed water to a steam drum; and iii) recovering steam having a pressure of at least about 4100 kPa (600 psia) from said steam drum.
    Type: Grant
    Filed: June 3, 2008
    Date of Patent: April 17, 2012
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventor: David B. Spicer
  • Patent number: 8152993
    Abstract: Methods are provided for decoking the radiant coils in an ethylene cracking plant. The decoking process is controlled by monitoring the coil outlet temperature to control the rate of burning of coke in the radiant coils. Air flow rates, steam flow rates and coil outlet temperatures are controlled during the decoking process to prevent tube damage, minimize decoking time and maximize coke removal.
    Type: Grant
    Filed: May 7, 2008
    Date of Patent: April 10, 2012
    Assignee: Lummus Technology Inc.
    Inventors: Stephen De Haan, Barbara Stancato, Brian K. Sullivan, Charles E. Nagy, Frank McCarthy
  • Patent number: 8123931
    Abstract: The present invention relates to a catalyst for hydrocarbon steam cracking for the production of light olefin, a preparation method of the catalyst and a preparation method of olefin by using the same. More precisely, the present invention relates to a composite catalyst prepared by mixing the oxide catalyst powder represented by CrZrjAkOx (0.5?j?120, 0?k?50, A is a transition metal, x is the number satisfying the condition according to valences of Cr, Zr and A, and values of j and k) and carrier powder and sintering thereof, a composite catalyst wherein the oxide catalyst is impregnated on a carrier, and a method of preparing light olefin such as ethylene and propylene by hydrocarbon steam cracking in the presence of the composite catalyst. The composite catalyst of the present invention has excellent thermal/mechanical stability in the cracking process, and has less inactivation rate by coke and significantly increases light olefin yield.
    Type: Grant
    Filed: May 23, 2008
    Date of Patent: February 28, 2012
    Assignee: LG Chem, Ltd.
    Inventors: Jun-han Kang, Jong-hun Song, Jun-seon Choi, Byoung-gi Park, Chang-hoon Kang, Si-hyun Noh
  • Patent number: 8083932
    Abstract: A process for making lower olefins from a wide boiling range hydrocarbon feed by use of a combination of one or more vapor/liquid separation devices, and then pyrolytically cracking the vapor phase in separate sets of pyrolysis radiant tubes, thereby producing a higher level of lower olefin product.
    Type: Grant
    Filed: August 21, 2008
    Date of Patent: December 27, 2011
    Assignee: Shell Oil Company
    Inventors: Arthur James Baumgartner, Robert Lawrence Blackbourn, Danny Yuk Kwan Ngan
  • Patent number: 8071833
    Abstract: A process (or steam cracking a hydrocarbon feedstock containing olefins to provide increased light olefins in the steam cracked effluent, the process comprising passing a first hydrocarbon feedstock containing one or more olefins through a reactor containing a crystalline silicate to produce an intermediate effluent with an olefin content of lower molecular weight than that of the feedstock, fractionating the intermediate effluent to provide a lower carbon fraction and a higher carbon fraction, and passing the higher carbon fraction, as a second hydrocarbon feedstock, through a stream cracker to produce a steam cracked effluent.
    Type: Grant
    Filed: May 22, 2003
    Date of Patent: December 6, 2011
    Assignee: Total Petrochemicals Research Feluy
    Inventors: Jacques Grootjans, Valérie Vanrysselberghe, Walter Vermeiren
  • Patent number: 8057663
    Abstract: A process and apparatus for cracking a hydrocarbon feed in a steam cracking furnace by withdrawing a resid-rich stream from a resid knockout vessel and recycling the resid-rich stream through a convection heating section of the furnace.
    Type: Grant
    Filed: May 29, 2009
    Date of Patent: November 15, 2011
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Richard C. Stell, David B. Spicer, George Stephens
  • Patent number: 8044254
    Abstract: A processing scheme and arrangement for enhanced olefin production involves cooling or treating an olefin cracking reactor effluent stream by contacting the olefin cracking reactor effluent stream with a quench oil stream in a single contact cooler contact zone to produce a cooled vapor stream and to form a heated quench oil stream. A pressure differential across the single contact cooler is less than about 3.5 kPa. The heated quench oil stream can be subsequently cooled and returned to the single contact cooler.
    Type: Grant
    Filed: March 16, 2009
    Date of Patent: October 25, 2011
    Assignee: UOP LLC
    Inventor: Adam J. Kanyuh
  • Patent number: 8013196
    Abstract: The invention relates to a process for the production of ethylene, comprising the steps of a) thermally converting, by a pyrolysis or a partial oxidation process, a feed charge containing methane into an acetylene containing effluent, and b) in situ hydrogenating, by a non-catalytic reaction, the acetylene produced in the first step into ethylene by intimately mixing the acetylene containing effluent with an ethane feed. The process according to the invention is more efficient than other synthesis schemes, while simplifying the overall process design. This process thus offers an economically attractive scheme for mass production of ethylene from natural gas, based on a well-known and proven acetylene route.
    Type: Grant
    Filed: June 22, 2006
    Date of Patent: September 6, 2011
    Assignee: Saudi Basic Industries Corporation
    Inventors: Aggadin Mamedov, Saeed Al-Wahabi, Yungyi Lin, Mohamed Sabri Abdelghani, Akram Al-Alwan
  • Patent number: 7977524
    Abstract: A process for decoking a convection section of a furnace for cracking a hydrocarbon feed, the furnace comprising a radiant section having burners that generate radiant heat and hot flue gas, and the convection section having at least one heat exchange tube for conveying the hydrocarbon feed. The process includes the step of establishing a flue gas temperature within the convection section of the furnace immediately adjacent the at least one convection section heat exchange tube so as to effect a film surface temperature of less than about 540° C. (about 1000° F.) within at least one convection section heat exchange tube, wherein said flue gas temperature establishing step is effective to decoke the at least one convection section heat exchange tube. A process for cracking hydrocarbon feed in a furnace is also provided.
    Type: Grant
    Filed: December 10, 2007
    Date of Patent: July 12, 2011
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: James N. McCoy, Richard Charles Stell
  • Patent number: 7972498
    Abstract: The invention concerns integration of hydroprocessing and steam cracking. A feed comprising crude or resid-containing fraction thereof is treated by hydroprocessing and visbreaking and then passed to a steam cracker to obtain a product comprising olefins.
    Type: Grant
    Filed: October 19, 2006
    Date of Patent: July 5, 2011
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: John S. Buchanan, Paul F Keusenkothen, Stephen H. Brown, Julian A. Wolfenbarger, James E. Graham, James N. McCoy
  • Patent number: 7951987
    Abstract: The present invention relates to a thermal-cracking method of hydrocarbon using a hydrocarbon thermal-cracking apparatus including a tube type furnace having a radiation part for thermally cracking hydrocarbon feedstocks supplied together with steam and a convection part. A hydrocarbon thermal-cracking catalyst is packed in some or entire area of the tube placed in the radiation part of the tube type furnace, wherein the hydrocarbon thermal-cracking catalyst includes an oxide catalyst represented by CrZrjAkOx (wherein, 0.5?j?120 and 0?k?50, A is a transition metal, and x is a number corresponding to the atomic values of Cr, Zr, and A and the numbers of j and k). Therefore, it is possible to improve yield and selectivity of olefin, reduce fuel consumption due to an excellent heat transfer efficiency and extend decoking interval by reduced production of coke deposited to an inside wall of a tube, in steam cracking of hydrocarbon for producing olefin.
    Type: Grant
    Filed: July 2, 2008
    Date of Patent: May 31, 2011
    Assignee: LG Chem, Ltd.
    Inventors: Jun-seon Choi, Byoung-gi Park, Jin-do Kim, Hyune-jung Ryu
  • Patent number: 7939702
    Abstract: Disclosed is a process for increasing production of light olefinic hydrocarbons from hydrocarbon feedstock by catalytic cracking. In the process, an effective separation process structure and recycle method of light olefins are used not only to increase the productivity and efficiency of an overall process, thus effectively increasing the production of light olefins, but also to simplify the overall process.
    Type: Grant
    Filed: June 1, 2006
    Date of Patent: May 10, 2011
    Assignee: SK Energy Co., Ltd.
    Inventors: Sun Choi, Yong Seung Kim, Deuk Soo Park, Suk Joon Kim, Il Mo Yang
  • Patent number: 7923592
    Abstract: The disclosed invention relates to a process for converting a feed composition comprising one or more hydrocarbons to a product comprising one or more unsaturated hydrocarbons, the process comprising: flowing the feed composition and steam in contact with each other in a microchannel reactor at a temperature in the range from about 200° C. to about 1200° C. to convert the feed composition to the product, the process being characterized by the absence of catalyst for converting the one or more hydrocarbons to one or more unsaturated hydrocarbons. Hydrogen and/or oxygen may be combined with the feed composition and steam.
    Type: Grant
    Filed: February 2, 2007
    Date of Patent: April 12, 2011
    Assignee: Velocys, Inc.
    Inventors: Anna Lee Tonkovich, Thomas Yuschak, Timothy J. LaPlante, Scott Rankin, Steven T. Perry, Sean Patrick Fitzgerald, Wayne W. Simmons, Terry Mazanec, Eric Daymo
  • Patent number: 7883618
    Abstract: Systems and processes for producing one or more olefins. A feed containing 90% by weight or more C4 and higher hydrocarbons can be cracked at conditions sufficient to provide an olefinic mixture and an aromatic mixture. The olefinic mixture can comprise 90% by weight or more C1 to C3 hydrocarbons. The aromatic mixture can comprise 90% by weight or more C4 and higher hydrocarbons and one or more aromatics. The aromatic mixture can be contacted with one or more solvents to selectively separate at least a portion of the one or more aromatics therefrom to provide an aromatic-rich mixture and an aromatic-lean mixture. At least a portion of the aromatic-lean mixture can be recycled to the feed prior to cracking.
    Type: Grant
    Filed: February 28, 2008
    Date of Patent: February 8, 2011
    Assignee: Kellogg Brown & Root LLC
    Inventors: Alan Claude, Anand Subramanian
  • Patent number: 7863494
    Abstract: Provided are a catalyst for hydrocarbon steam cracking for light olefin production and a method for preparing the same. The catalyst is a simple KMgPO4 catalyst, a supported KMgPO4 catalyst, or a KMgPO4-sintered catalyst. The supported KMgPO4 catalyst is prepared by impregnating a carrier with an aqueous solution of a KMgPO4 precursor and the KMgPO4-sintered catalyst is prepared by mixing a KMgPO4 powder or a KMgPO4 precursor powder with metal oxide followed by sintering. Provided is also a method for producing light olefins such as ethylene and propylene by steam cracking in the presence of the catalyst. When the catalyst comprising KMgSO4 as a catalytic component is used in olefin production, the yield of olefins is increased and the amount of cokes deposited on the catalyst is reduced.
    Type: Grant
    Filed: May 7, 2004
    Date of Patent: January 4, 2011
    Assignees: LG Chem, Ltd., LG Petrochemical Co., Ltd.
    Inventors: Jun-han Kang, Won-ho Lee, Sang-mun Jeong, Sang-ku Park, Jong-hyun Chae
  • Patent number: 7858834
    Abstract: A method for utilizing a feed comprising condensate and crude oil for an olefin production plant is disclosed. The feed is subjected to vaporization and separated into vaporous hydrocarbons and liquid hydrocarbons. The vaporous hydrocarbons stream is thermally cracked in the plant. The liquid hydrocarbons are recovered.
    Type: Grant
    Filed: August 17, 2007
    Date of Patent: December 28, 2010
    Assignee: Equistar Chemicals, LP
    Inventor: Donald H. Powers
  • Patent number: 7846322
    Abstract: A high-flux membrane, especially a sieving membrane, is used to separate a naphtha feedstock into a retentate fraction having a reduced concentration of normal paraffins for an enhanced reforming feed and a permeate fraction having an increased concentration of normal paraffins for an enhanced cracking feed.
    Type: Grant
    Filed: September 7, 2007
    Date of Patent: December 7, 2010
    Assignee: UOP LLC
    Inventor: Lynn H. Rice
  • Patent number: 7838712
    Abstract: Disclosed is a method for steam-cracking naphtha, according to which a charge of hydrocarbons containing a portion of paraffinic naphtha, which is modified by adding a combination of a first component containing a portion of gasoline and a second component containing a portion of at least one hydrocarbonated refinery gas, and a paraffin-rich change containing at least one paraffin selected among propane, butane, or a mixture thereof are fed through a steam cracker in the presence of vapor. Also disclosed is a hydrocarbon composition suitable for steam cracking, containing a portion of a paraffinic naphtha, which is modified by adding a combination of a first component containing a portion of gasoline and a second component containing a portion of at least one hydrocarbonated refinery gas and a paraffin-rich charge containing at least one paraffin selected among propane, butane, or a mixture thereof.
    Type: Grant
    Filed: January 9, 2003
    Date of Patent: November 23, 2010
    Assignees: Total Petrochemicals Research Feluy, Total Raffinage Marketing
    Inventors: François Bouvart, Robert Duchesnes, Claude Gutle
  • Patent number: 7829752
    Abstract: A process for making lower olefins from a heavy hydrocarbon feed by use of a combination of thermal cracking and vapor-liquid separation, and, then, pyrolytically cracking the light fraction of the thermally-cracked heavy hydrocarbon feed to thereby produce a lower olefin product.
    Type: Grant
    Filed: March 22, 2007
    Date of Patent: November 9, 2010
    Assignee: Shell Oil Company
    Inventors: Arthur James Baumgartner, Danny Yuk-Kwan Ngan
  • Patent number: 7820035
    Abstract: A process for cracking heavy hydrocarbon comprising heating the heavy hydrocarbon feedstock, mixing the heavy hydrocarbon feedstock with a fluid and/or a primary dilution steam stream to form a mixture, flashing the mixture to form a vapor phase and a liquid phase, separating and cracking the vapor phase, and cooling the product effluent in a transfer line exchanger, wherein the amount of the fluid and/or the primary dilution steam stream mixed with the heavy hydrocarbon feedstock is varied in accordance with at least one selected operating parameter of the process, such as the temperature of the flash stream before entering the flash/separator vessel.
    Type: Grant
    Filed: February 28, 2005
    Date of Patent: October 26, 2010
    Assignee: ExxonMobilChemical Patents Inc.
    Inventors: James N. McCoy, David B. Spicer, Richard C. Stell
  • Patent number: 7807860
    Abstract: The present invention provides a reactor design that enables an auto-thermal cracking process to be conducted at any suitable pressure wherein the gaseous reactants are preheated separately before mixing and then presented to the reaction zone in a uniformly distributed manner.
    Type: Grant
    Filed: February 6, 2004
    Date of Patent: October 5, 2010
    Assignee: Ineos Europe Limited
    Inventors: Derek Alan Colman, Michael John Alexander Matthewman, Ian Allan Beattie Reid, Vaughan Clifford Williams, William Terence Woodfin
  • Patent number: 7799963
    Abstract: A cracking tube (50) for use in thermal cracking furnaces for producing ethylene or the like has fins (1) formed on an inner surface thereof and inclined with respect to an axis of the tube for stirring a fluid inside the tube. The fins are arranged discretely on one or a plurality of helical loci, and the tube inner surface has regions (ZB) wherein no fins are present over the entire axial length of the tube from one axial end of the tube to the other axial end thereof.
    Type: Grant
    Filed: March 3, 2009
    Date of Patent: September 21, 2010
    Assignee: Kubota Corporation
    Inventors: Masahiro Inui, Kaoru Hamada, Kenji Otsubo
  • Patent number: 7767170
    Abstract: A process is provided for cracking hydrocarbon feedstock containing resid comprising: heating the feedstock, mixing the heated feedstock with a fluid and/or a primary dilution steam stream to form a mixture, optionally further heating the mixture, flashing the mixture within a flash/separation vessel to form a vapor phase and a liquid phase, partially condensing the vapor phase by contacting with a condenser within the vessel, to condense at least some coke precursors within the vapor while providing condensates which add to the liquid phase, removing the vapor phase of reduced coke precursors content as overhead and the liquid phase as bottoms, heating the vapor phase, cracking the vapor phase in a radiant section of a pyrolysis furnace to produce an effluent comprising olefins, and quenching the effluent and recovering cracked product therefrom. An apparatus for carrying out the process is also provided.
    Type: Grant
    Filed: June 16, 2006
    Date of Patent: August 3, 2010
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Richard C. Stell, George Stephens, Jennifer L. Bancroft, John R. Messinger
  • Patent number: 7763763
    Abstract: The present invention provides a process for the production of olefins wherein a synthetic naphtha is passed to a steam cracker. The synthetic naphtha is derived from the fractionation of a Fischer-Tropsch product stream. The Fischer-Tropsch product stream may be separated into a lighter fraction and a heavy fraction and the heavy fraction may be hydrotreated prior to fractionation. Optionally the synthetic naphtha may be hydrogenated to produce a saturated synthetic naphtha which can then be subsequently passed to the steam cracker.
    Type: Grant
    Filed: November 5, 2002
    Date of Patent: July 27, 2010
    Assignee: BP Exploration Operating Company Limited
    Inventor: Josephus Johannes Helena Maria Font Freide
  • Patent number: 7744747
    Abstract: A method for thermally cracking a feed composed of whole crude oil and/or natural gas condensate using a partitioned vaporizer to gasify the feed before cracking same.
    Type: Grant
    Filed: January 2, 2008
    Date of Patent: June 29, 2010
    Assignee: Equistar Chemicals, LP
    Inventor: Richard B. Halsey
  • Patent number: 7718052
    Abstract: A process for independently and concurrently cracking at least two different hydrocarbon feedstocks to olefins. The process is carried out in a furnace for cracking hydrocarbon feed which has at least a first and second independent radiant cracking zone to produce a first cracked product and second cracked product that are separately withdrawn from the furnace.
    Type: Grant
    Filed: October 9, 2007
    Date of Patent: May 18, 2010
    Assignee: Stone & Webster Technology, Inc.
    Inventors: John Brewer, David Brown, Svend Rumbold
  • Patent number: 7718839
    Abstract: A process for making lower olefins from a heavy hydrocarbon feed by use of a combination of two vapor-liquid separation devices, and, then, pyrolytically cracking the light fraction of the heavy hydrocarbon feed to thereby produce a lower olefin product.
    Type: Grant
    Filed: March 22, 2007
    Date of Patent: May 18, 2010
    Assignee: Shell Oil Company
    Inventors: Arthur James Baumgartner, Danny Yuk-Kwan Ngan
  • Patent number: 7718840
    Abstract: Disclosed is a process for producing light olefins from hydrocarbon feedstock. The process is characterized in that a porous molecular sieve catalyst consisting of a product obtained by evaporating water from a raw material mixture comprising a molecular sieve with a framework of Si—OH—Al— groups, a water-insoluble metal salt, and a phosphate compound, is used to produce light olefins, particularly ethylene and propylene, from hydrocarbon, while maintaining excellent selectivity to light olefins. According to the process, by the use of a specific catalyst with hydrothermal stability, light olefins can be selectively produced in high yield with high selectivity from hydrocarbon feedstock, particularly full-range naphtha. In particular, the process can maintain higher cracking activity than the reaction temperature required in the prior thermal cracking process for the production of light olefins, and thus, can produce light olefins with high selectivity and conversion from hydrocarbon feedstock.
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: May 18, 2010
    Assignees: SK Energy Co., Ltd., Korea Research Institute of Chemical Technology
    Inventors: Sun Choi, Yong Seung Kim, Deuk Soo Park, Suk Joon Kim, Il Mo Yang, Hee Young Kim, Yong Ki Park, Chul Wee Lee, Won Choon Choi, Kwang An Ko, Na Young Kang
  • Patent number: 7683231
    Abstract: A catalyst system capable of supporting combustion beyond the fuel rich limit of flammability comprising a catalytic component, a first support and a second support and wherein the catalytic component is present on both the first and the second support, and a process for the production of an olefin, said process comprising passing a mixture of a hydrocarbon and an oxygen-containing gas over said catalyst system to produce said olefin. The first support and the second support must differ in at least one of the following aspects: support material, support type and/or structural dimension.
    Type: Grant
    Filed: May 18, 2004
    Date of Patent: March 23, 2010
    Assignee: Ineos Europe Limited
    Inventors: Ian Allan Beattie Reid, Vaughan Clifford Williams
  • Publication number: 20100063342
    Abstract: A furnace and method for the cracking of hydrocarbons. The furnace includes a radiant firebox, the radiant firebox comprising a furnace floor having a centerline, a plurality of decoke effluent injection nozzles mounted along or adjacent to the centerline for injecting decoke effluent upward into the radiant firebox, a plurality of burners arranged to form a first line of burners and a second line of burners, each line of burners positioned on opposing sides of the plurality of decoke effluent injection nozzles, a first plane of radiant coils spaced at a distance greater than the distance that the first line of burners is spaced from the centerline of the furnace floor and on the same side of the centerline as the first row of burners, and a second plane of radiant coils spaced at a distance greater than the distance that the second line of burners is spaced from the centerline of the furnace floor and on the same side of the centerline as the second row of burners.
    Type: Application
    Filed: September 5, 2008
    Publication date: March 11, 2010
    Inventors: David B. Spicer, Caleb M. Scherer
  • Patent number: 7663013
    Abstract: A porous solid acid catalyst for producing light olefins is prepared through pillaring and a solid state reaction of a raw material mixture. The catalyst is made of a porous material having a crystalline structure that is different from that of the raw material mixture. The catalyst exhibits excellent catalytic activity (i.e., conversion and selectivity) in the production of light olefins from hydrocarbon feeds such as full range naphthas.
    Type: Grant
    Filed: November 5, 2008
    Date of Patent: February 16, 2010
    Assignee: SK Energy Co., Ltd.
    Inventors: Sun Choi, Deuk Soo Park, Suk Joon Kim, Ahn Seop Choi, Hee Young Kim, Yong Ki Park, Chul Wee Lee, Won Choon Choi, Sang Yun Han, Jeong Ri Kim