Patents by Inventor Machteld M. Mertens

Machteld M. Mertens has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10899627
    Abstract: A method of synthesising a molecular sieve of DDR framework type. The method comprises: preparing a synthesis mixture capable of forming a molecular sieve of DDR framework type, said synthesis mixture comprising water, a silicon source, optionally a source of a trivalent element X, optionally a source of a pentavalent element Z, optionally a source of hydroxide ions, optionally a source of a metal cation M, a structure directing agent, and seed crystals having a framework type selected from CHA and LEV; said synthesis mixture being substantially free from fluoride ions; heating said synthesis mixture under static crystallization conditions for a time sufficient to form crystals of said molecular sieve of DDR framework type, said crystallization conditions including a temperature of from 100° C. to 220° C.; and, recovering said crystals of the molecular sieve of DDR framework type from the synthesis mixture.
    Type: Grant
    Filed: June 4, 2020
    Date of Patent: January 26, 2021
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Marc H. Anthonis, Antonie Jan Bons, Machteld M. Mertens
  • Publication number: 20200399136
    Abstract: A method of synthesising a molecular sieve of DDR framework type. The method comprises: preparing a synthesis mixture capable of forming a molecular sieve of DDR framework type, said synthesis mixture comprising water, a silicon source, optionally a source of a trivalent element X, optionally a source of a pentavalent element Z, optionally a source of hydroxide ions, optionally a source of a metal cation M, a structure directing agent, and seed crystals having a framework type selected from CHA and LEV; said synthesis mixture being substantially free from fluoride ions; heating said synthesis mixture under static crystallization conditions for a time sufficient to form crystals of said molecular sieve of DDR framework type, said crystallization conditions including a temperature of from 100° C. to 220° C.; and, recovering said crystals of the molecular sieve of DDR framework type from the synthesis mixture.
    Type: Application
    Filed: June 4, 2020
    Publication date: December 24, 2020
    Inventors: Marc H. Anthonis, Antonie Jan Bons, Machteld M. Mertens
  • Patent number: 10647798
    Abstract: Disclosed herein are spray-dried catalyst compositions including one or more olefin polymerization catalysts and at least one support of an organosilica material, optionally, with at least one activator. The spray-dried catalyst compositions may be used in polymerization processes for the production of polyolefin polymers.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: May 12, 2020
    Assignee: ExxonMobil Chemical Patents, Inc.
    Inventors: Matthew W. Holtcamp, Quanchang Li, David C. Calabro, Gerardo J. Majano Sanchez, Machteld M. Mertens, Charles J. Harlan
  • Publication number: 20190127294
    Abstract: The invention relates to catalysts and their use in processes for conversion of hydrocarbon feedstock to a product comprising single-ring aromatic hydrocarbons having six or more carbon atoms, to the methods of making such catalysts, to processes for using such catalysts, and to apparatus and systems for carrying out such processes. One of more of the catalysts comprise a crystalline aluminosilicate having a Constraint Index in the range of 1 to 12, a first metal and/or a second metal, and at least one selectivating agent, such as, for example, an organo-silicate.
    Type: Application
    Filed: December 21, 2018
    Publication date: May 2, 2019
    Inventors: Mayank Shekhar, Paul F. Keusenkothen, Machteld M. Mertens, Anthony Go
  • Publication number: 20190055387
    Abstract: Described herein are polymer compositions comprising a polymer and a molecular sieve having a framework type of AEL, AFO, EUO, FER, HEU, MEL, MTW, MTT, MFI, OFF, or TON. The present polymer composition comprises a toluene content of less than 1.0 mg/m3 and a C6-C16 volatile organic compounds content of less than 3.0 mg/m3. Described herein also are a method of reducing the toluene content contained in polymers.
    Type: Application
    Filed: June 28, 2018
    Publication date: February 21, 2019
    Inventors: Na Li, Wei Hu, Joseph G. M. Flendrig, Machteld M. Mertens
  • Publication number: 20180179310
    Abstract: Disclosed herein are spray-dried catalyst compositions including one or more olefin polymerization catalysts and at least one support of an organosilica material, optionally, with at least one activator. The spray-dried catalyst compositions may be used in polymerization processes for the production of polyolefin polymers.
    Type: Application
    Filed: November 9, 2017
    Publication date: June 28, 2018
    Inventors: Matthew W. Holtcamp, Quanchang Li, David C. Calabro, Gerardo J. Majano Sanchez, Machteld M. Mertens, Charles J. Harlan
  • Patent number: 9783460
    Abstract: Embodiments of the invention provide processes for catalytically converting oxygenates to hydrocarbon products having an increased C6-C8 aromatics content therein. Particular processes include (a) providing a first mixture comprising ?10.0 wt. % of at least one oxygenate, based on the weight of the first mixture; (b) contacting the first mixture with a catalyst to convert the first mixture to a product stream including water, one or more hydrocarbons, hydrogen, and one or more oxygenates, wherein the catalyst comprises at least one molecular sieve and at least one element selected from Groups 2-14 of the Periodic Table and the hydrocarbons comprise ?30.0 wt. % of aromatics, based on the weight of the hydrocarbons in the product stream; and (c) separating from the product stream at least one water-rich stream, at least one aromatic-rich hydrocarbon stream, and at least one aromatic-depleted hydrocarbon stream.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: October 10, 2017
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: John D. Ou, Machteld M. Mertens, Linelle T. Jacob, Stephen J. McCarthy, Rohit Vijay, Jeevan S. Abichandani
  • Patent number: 9776937
    Abstract: In a feed clean-up process at least two adsorbents (2, 4) are installed in front of an oligomerization reactor (3). Olefin feed is sent over one adsorbent (2) and the nitrile poisons are adsorbed so that clean feed will enter the reactor (3). Before the adsorbent (2) will be saturated, the feed (1) is sent to the other, fresh adsorbent (4). At the same time oligomerization product from the reactor (3) is used to desorb nitriles from the spent adsorbent (2).
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: October 3, 2017
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Hans K. T. Goris, Geraldine Tosin, Luc R. M. Martens, Machteld M. Mertens, Silvio Carrettin
  • Patent number: 9550705
    Abstract: The present invention provides an olefin oligomerization process comprising the steps of: i) reducing the level of acetonitrile in an olefin feed by contacting the feed with a non-zeolitic metal oxide; and ii) contacting the olefin feed with reduced level of acetonitrile with an olefin oligomerization catalyst under conditions suitable to oligomerize the olefin.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: January 24, 2017
    Assignee: ExxonMobill Chemical Patents Inc.
    Inventors: Geraldine Tosin, An Verberckmoes, Helge Jaensch, Georges M. K. Mathys, Machteld M. Mertens, Sourav Saha, Hailian Li, Robert James Saxton
  • Patent number: 9382344
    Abstract: This disclosure relates to a process for polymerization comprising providing a recycle stream, wherein the recycle stream comprises one or more C6 to C12 conjugated or non-conjugated diene monomers and one or more C1 to C40 oxygenates. The recycle stream is contacted with an adsorbent bed to produce a treated recycle stream; wherein the adsorbent bed comprises at least two adsorbents to remove quenching agent and C1 to C40 oxygenates.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: July 5, 2016
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Suzzy C. Ho, Jo Ann M. Canich, Machteld M. Mertens, Periagaram S. Ravishankar, Patrick S. Byrne, Lisa B. V. Stefaniak
  • Publication number: 20150175498
    Abstract: Embodiments of the invention provide processes for catalytically converting oxygenates to hydrocarbon products having an increased C6-C8 aromatics content therein. Particular processes include (a) providing a first mixture comprising ?10.0 wt. % of at least one oxygenate, based on the weight of the first mixture; (b) contacting the first mixture with a catalyst to convert the first mixture to a product stream including water, one or more hydrocarbons, hydrogen, and one or more oxygenates, wherein the catalyst comprises at least one molecular sieve and at least one element selected from Groups 2-14 of the Periodic Table and the hydrocarbons comprise ?30.0 wt. % of aromatics, based on the weight of the hydrocarbons in the product stream; and (c) separating from the product stream at least one water-rich stream, at least one aromatic-rich hydrocarbon stream, and at least one aromatic-depleted hydrocarbon stream.
    Type: Application
    Filed: December 4, 2014
    Publication date: June 25, 2015
    Inventors: John D. OU, Machteld M. Mertens, Linelle T. Jacob, Stephen J. McCarthy, Rohit Vijay, Jeevan S. Abichandani
  • Publication number: 20140378732
    Abstract: This disclosure relates to a process for polymerization comprising providing a recycle stream, wherein the recycle stream comprises one or more C6 to C12 conjugated or non-conjugated diene monomers and one or more C1 to C40 oxygenates. The recycle stream is contacted with an adsorbent bed to produce a treated recycle stream; wherein the adsorbent bed comprises at least two adsorbents to remove quenching agent and C1 to C40 oxygenates.
    Type: Application
    Filed: June 20, 2014
    Publication date: December 25, 2014
    Inventors: Suzzy C. Ho, Jo Ann M. Canich, Machteld M. Mertens, Periagaram S. Ravishankar, Patrick S. Byrne, Lisa B. V. Stefaniak
  • Patent number: 8859836
    Abstract: A crystalline molecular sieve of MFS framework type manufactured by the method disclosed herein. A hydrocarbon conversion process using the crystalline molecular sieve is disclosed.
    Type: Grant
    Filed: May 1, 2012
    Date of Patent: October 14, 2014
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Machteld M. Mertens, An Verberckmoes, Ivy D. Johnson
  • Patent number: 8470293
    Abstract: A method of preparing a silicoaluminophosphate molecular sieve which comprises the steps of combining a source of silica, a source of phosphorous, a source of alumina and water to form a primary mixture; adding a structure directing agent to said mixture and optional seeds to form a synthesis mixture. The synthesis mixture is synthesized by heating the mixture to a crystallization temperature to form the sieve. The molar ratio of the structure directing agent relative to the source of alumina may vary between 1.3 and 1.9 and the ratio of water to the source of alumina may vary between 20 to 34.
    Type: Grant
    Filed: November 1, 2010
    Date of Patent: June 25, 2013
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Machteld M. Mertens, Chunshe Cao
  • Patent number: 8399578
    Abstract: In a method of synthesizing a silicoaluminophosphate molecular sieve having 90+% CHA framework-type character, a reaction mixture is prepared comprising sources of water, silicon, aluminum, and phosphorus, as well as an organic template. In one aspect, the reaction mixture is heated at more than 10° C./hour to a crystallization temperature and is retained at the crystallization temperature or within the crystallization temperature range for a crystallization time from 16 hours to 350 hours to produce the silicoaluminophosphate molecular sieve. In another aspect, the reaction mixture is heated at less than 10° C./hour to a crystallization temperature from about 150° C. to about 225° C. and is then retained there for less than 10 hours to produce the silicoaluminophosphate molecular sieve. The molecular sieve can then be recovered from the reaction mixture and, preferably, used in a hydrocarbon conversion process, such as oxygenates to olefins.
    Type: Grant
    Filed: August 20, 2012
    Date of Patent: March 19, 2013
    Assignee: Exxonmobil Chemical Patents Inc.
    Inventors: Machteld M. Mertens, Stephen N. Vaughn
  • Publication number: 20120316312
    Abstract: In a method of synthesizing a silicoaluminophosphate molecular sieve having 90+% CHA framework-type character, a reaction mixture is prepared comprising sources of water, silicon, aluminum, and phosphorus, as well as an organic template. In one aspect, the reaction mixture is heated at more than 10° C./hour to a crystallization temperature and is retained at the crystallization temperature or within the crystallization temperature range for a crystallization time from 16 hours to 350 hours to produce the silicoaluminophosphate molecular sieve. In another aspect, the reaction mixture is heated at less than 10° C./hour to a crystallization temperature from about 150° C. to about 225° C. and is then retained there for less than 10 hours to produce the silicoaluminophosphate molecular sieve. The molecular sieve can then be recovered from the reaction mixture and, preferably, used in a hydrocarbon conversion process, such as oxygenates to olefins.
    Type: Application
    Filed: August 20, 2012
    Publication date: December 13, 2012
    Inventors: Machteld M. Mertens, Stephen N. Vaughn
  • Patent number: 8313727
    Abstract: In a method of synthesizing a mostly CHA-type silicoaluminophosphate sieve, a reaction mixture comprises sources of water, silicon, aluminum, phosphorus, and a template. In one aspect, the inorganic phosphorus and silicon sources are first combined to form a primary mixture that is aged. Then, the aluminum source is added, followed optionally by any organic phosphorus source, and then the template, to form the synthesis mixture. After heating at <10° C./hr to induce crystallization, in this aspect, both the crystallized sieve has an average crystal size ?1.5 ?m and/or is recovered in a yield of ?10.0 wt %. In another aspect, when the synthesis mixture Si/Al2 ratio is <0.33, crystallization is induced. Advantageously, the sieve so crystallized has a template efficiency of ?0.5 and/or is recovered in a yield of ?10.0 wt %. The molecular sieve from both aspects can be used in a hydrocarbon (oxygenates-to-olefins) conversion process.
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: November 20, 2012
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventor: Machteld M. Mertens
  • Patent number: 8293854
    Abstract: In a method of synthesizing a silicoaluminophosphate molecular sieve having 90%+CHA framework type character, a reaction mixture is prepared comprising first combining a reactive source of aluminum with a reactive source of phosphorus to form a primary mixture that is aged. A reactive source of silicon and a template for directing the formation of the molecular sieve can then be added to form a synthesis mixture. Crystallization is then induced in the synthesis mixture. Advantageously, (i) the source of silicon comprises an organosilicate, (ii) the source of phosphorus optionally comprises an organophosphate, and (iii) the crystallized silicoaluminophosphate molecular sieve has a crystal size distribution such that its average crystal size is not greater than 5 ?m. The molecular sieve can then preferably be used in a hydrocarbon (oxygenates-to-olefins) conversion process.
    Type: Grant
    Filed: April 18, 2012
    Date of Patent: October 23, 2012
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Machteld M. Mertens, Stephen N. Vaughn, Guang Cao, Luc R. M. Martens, Mobae Afeworki
  • Publication number: 20120264987
    Abstract: A crystalline molecular sieve of MFS framework type manufactured by the method disclosed herein. A hydrocarbon conversion process using the crystalline molecular sieve is disclosed.
    Type: Application
    Filed: May 1, 2012
    Publication date: October 18, 2012
    Inventors: Machteld M. Mertens, An Verberckmoes, Ivy D. Johnson
  • Patent number: 8268277
    Abstract: In a method of synthesizing a silicoaluminophosphate molecular sieve having 90+% CHA framework-type character, a reaction mixture is prepared comprising sources of water, silicon, aluminum, and phosphorus, as well as an organic template. In one aspect, the reaction mixture is heated at more than 10° C./hour to a crystallization temperature and is retained at the crystallization temperature or within the crystallization temperature range for a crystallization time from 16 hours to 350 hours to produce the silicoaluminophosphate molecular sieve. In another aspect, the reaction mixture is heated at less than 10° C./hour to a crystallization temperature from about 150° C. to about 225° C. and is then retained there for less than 10 hours to produce the silicoaluminophosphate molecular sieve. The molecular sieve can then be recovered from the reaction mixture and, preferably, used in a hydrocarbon conversion process, such as oxygenates to olefins.
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: September 18, 2012
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Machteld M. Mertens, Stephen N. Vaughn