Patents Assigned to H R D Corporation
-
Patent number: 8178705Abstract: A method of producing volatilized fatty acids by heating a feedstock comprising at least one fat or oil in a reactor under inert vacuum to volatilize fatty acids, and removing volatilized fatty acids from bottoms residue comprising cross-linked oil. A system for stripping fatty acids from triglycerides, the system comprising a reactor, heating apparatus and a vacuum pump capable of pulling a vacuum in the range of from 1 kPa to 50 kPa on the reactor. A system for producing a hydrogenated product including a reactor comprising an inlet for a stream comprising triglycerides, an outlet for volatilized fatty acids, and an outlet for a cross-linked product, heating apparatus, a vacuum pump capable of pulling a vacuum in the range of from 1 kPa to 50 kPa on the reactor, and a hydrogenation reactor, wherein an inlet of the hydrogenation reactor is fluidly connected to the outlet for cross-linked product.Type: GrantFiled: May 10, 2011Date of Patent: May 15, 2012Assignee: H R D CorporationInventors: Abbas Hassan, Ebrahim Bagherzadeh, Rayford G. Anthony, Gregory Borsinger, Aziz Hassan
-
Publication number: 20120111769Abstract: A method of removing sulfur from sour oil by subjecting sour oil having a first sulfur content to high shear in the presence of at least one desulfurizing agent to produce a high shear treated stream, wherein the at least one desulfurizing agent is selected from the group consisting of bases and inorganic salts, and separating both a sulfur-rich product and a sweetened oil product from the high shear-treated stream, wherein the sulfur-rich product comprises elemental sulfur and wherein the sweetened oil product has a second sulfur content that is less than the first sulfur content. A system for reducing the sulfur content of sour oil via at least one high shear device comprising at least one rotor and at least one complementarily-shaped stator, and at least one separation device configured to separate a sulfur-rich product and sweetened oil from the high shear-treated stream.Type: ApplicationFiled: August 2, 2011Publication date: May 10, 2012Applicant: H R D CorporationInventors: Abbas HASSAN, Aziz Hassan, Rayford G. Anthony, Gregory G. Borsinger
-
Patent number: 8168836Abstract: Methods and systems for the hydrogenation of aldehydes and/or ketones are described herein. The methods and systems incorporate the novel use of a high shear device to promote dispersion and solubility of the hydrogen-containing gas (e.g. H2 gas) in the aldehydes and/or ketones. The high shear device may allow for lower reaction temperatures and pressures and may also reduce hydrogenation time with existing catalysts.Type: GrantFiled: February 22, 2011Date of Patent: May 1, 2012Assignee: H R D CorporationInventors: Abbas Hassan, Ebrahim Bagherzadeh, Rayford G. Anthony, Gregory Borsinger, Azziz Hassan
-
Patent number: 8153077Abstract: A method for producing nitrobenzene is disclosed which comprises forming a dispersion comprising benzene-containing droplets or particles dispersed in a mixture of concentrated nitric acid and concentrated sulfuric acid, wherein said particles have a mean diameter less than one micron, and subjecting the dispersion to reaction conditions comprising a pressure in the range of about 203 kPa (2 atm) to about 6080 kPa (60 atm) and a temperature in the range of about 20° C. to about 230° C., whereby at least a portion of said benzene is nitrated to form nitrobenzene. A system for carrying out the method is also disclosed.Type: GrantFiled: September 28, 2009Date of Patent: April 10, 2012Assignee: H R D CorporationInventors: Abbas Hassan, Ebrahim Bagherzadeh, Rayford G. Anthony, Gregory G. Borsinger, Aziz Hassan
-
Patent number: 8153076Abstract: A method for producing aniline or toluenediamine is disclosed which comprises forming a dispersion comprising hydrogen gas bubbles dispersed in a liquid medium comprising either nitrobenzene or dinitrotoluene, wherein the hydrogen gas bubbles have a mean diameter less than 1 micron; and subjecting the dispersion to hydrogenation reaction promoting conditions comprising pressure less than about 600 kPa and temperature less than about 200° C., whereby at least a portion of the nitrobenzene or dinitrotoluene is hydrogenated to form aniline or toluenediamine, respectively. A system for carrying out the method is also disclosed.Type: GrantFiled: September 28, 2009Date of Patent: April 10, 2012Assignee: H R D CorporationInventors: Abbas Hassan, Ebrahim Bagherzadeh, Rayford G. Anthony, Gregory G. Borsinger, Aziz Hassan
-
Patent number: 8147768Abstract: A method is disclosed for producing polyvinyl chloride which includes mixing a vinyl chloride solution with an initiator solution in at least one high shear mixing device comprising at least one rotor/stator set producing a rotor tip speed of at least 5.1 m/sec (1000 ft/min), to form a polymerization mixture; and allowing the mixture to polymerize by free radical polymerization to form polyvinyl chloride. The polymerization mixture may be subjected to free radical polymerization conditions comprising a temperature in the range of about 20° C. to about 230° C. In some embodiments, the high shear mixing device produces a shear rate of at least 20,000 s?1. A system for carrying out the method is also disclosed.Type: GrantFiled: April 21, 2009Date of Patent: April 3, 2012Assignee: H R D CorporationInventors: Abbas Hassan, Ebrahim Bagherzadeh, Rayford G. Anthony, Gregory Borsinger, Aziz Hassan
-
Patent number: 8138250Abstract: Waxes prepared from hydrogenated plant oils, such as castor and soybean, are formulated into aqueous ink and paper coating compositions. Ink compositions comprising these waxes and evaluated for their resistance to mar and abrasion achieved rub resistance and slip performance comparable to compositions utilizing conventional wax additives, which are generally derived from petroleum. The waxes in the inventive compositions have a low iodine value (ranging from approximately 2 to approximately 5), and a melting point between approximately 120 degrees to approximately 190 degrees F. (Mettler Drop Point). These naturally derived waxes are used as an alternative to petroleum and synthetically derived waxes in the manufacture of inks and coatings for paper and cellulosic products.Type: GrantFiled: October 26, 2004Date of Patent: March 20, 2012Assignee: H R D CorporationInventors: Aziz Hassan, Gregory Borsinger
-
Patent number: 8133447Abstract: Methods and systems for the production of linear alkylbenzenes are described herein. The methods and systems incorporate the novel use of a high shear device to promote dispersion and mixing of one or more olefins (e.g. propylene) with an aromatic. The high shear device may allow for lower reaction temperatures and pressures and may also reduce reaction time with existing catalysts.Type: GrantFiled: June 8, 2010Date of Patent: March 13, 2012Assignee: H R D CorporationInventors: Abbas Hassan, Ebrahim Bagherzadeh, Rayford G. Anthony, Gregory G. Borsinger, Aziz Hassan
-
Patent number: 8133925Abstract: A method for forming C2+ hydrocarbons by forming a dispersion comprising synthesis gas bubbles dispersed in a liquid phase comprising hydrocarbons in a high shear device, wherein the average bubble diameter of the synthesis gas bubbles is less than about 1.5 ?m, introducing the dispersion into a reactor, and removing a product stream comprising C2+ hydrocarbons from the reactor. A system for converting carbon monoxide and hydrogen gas into C2+ hydrocarbons including at least one high shear mixing device comprising at least one rotor and at least one stator separated by a shear gap, wherein the high shear mixing device is capable of producing a tip speed of the at least one rotor of greater than 22.9 m/s (4,500 ft/min), and a pump configured for delivering a fluid stream comprising liquid medium to the high shear mixing device.Type: GrantFiled: June 12, 2008Date of Patent: March 13, 2012Assignee: H R D CorporationInventors: Abbas Hassan, Ebrahim Bagherzadeh, Rayford G. Anthony, Gregory Borsinger, Aziz Hassan
-
Publication number: 20120058024Abstract: Systems disclosed herein may include at least one high shear mixing device configured to produce a dispersion of oxygen-containing gas bubbles in toluene liquid phase, wherein the dispersion has a mean bubble diameter of less than 5 microns; a pump configured to deliver a liquid stream comprising the toluene to the high shear mixing device; and a vessel configured to receive the dispersion from the high shear mixing device and configured to maintain a predetermined pressure and temperature.Type: ApplicationFiled: November 16, 2011Publication date: March 8, 2012Applicant: H R D CorporationInventors: Abbas HASSAN, Ebrahim Bagherzadeh, Rayford G. Anthony, Gregory Borsinger, Aziz Hassan
-
Patent number: 8128808Abstract: Herein disclosed is a method for hydrodesulfurization, hydrodenitrogenation, hydrofinishing, amine production or a combination thereof. The method comprises forming a dispersion comprising hydrogen-containing gas bubbles dispersed in a liquid feedstock, wherein the bubbles have a mean diameter of less than about 5 ?m and wherein the feedstock comprises a mixture of petroleum-derived hydrocarbons and a naturally derived renewable oil. The feedstock comprises hydrocarbons selected from the group consisting of liquid natural gas, crude oil, crude oil fractions, gasoline, diesel, naphtha, kerosene, jet fuel, fuel oils, and combinations thereof. The method further comprises contacting the dispersion with a catalyst that is active for hydrodesulfurization, hydrodenitrogenation, hydrofinishing, amine production, or a combination thereof. The catalyst comprises homogeneous catalysts and heterogeneous catalysts. The catalyst may be utilized in fixed-bed or slurry applications.Type: GrantFiled: January 18, 2010Date of Patent: March 6, 2012Assignee: H R D CorporationInventors: Abbas Hassan, Rayford G. Anthony, Gregory G. Borsinger, Aziz Hassan
-
Publication number: 20120024906Abstract: A system for introducing an inhibitor into a fluid to be treated, the system having at least one high shear mixing device comprising a rotor and a stator separated by a shear gap, wherein the at least one high shear mixing device is configured to subject a mixture of the inhibitor and the fluid to a shear rate of greater than about 20,000 s?1; and a pump configured to deliver at least one of the fluid, the inhibitor, and combinations thereof, to the high shear mixing device.Type: ApplicationFiled: October 4, 2011Publication date: February 2, 2012Applicant: H R D CorporationInventors: Abbas Hassan, Ebrahim Bagherzadeh, Rayford G. Anthony, Gregory Borsinger, Aziz Hassan
-
Patent number: 8088953Abstract: Disclosed herein is a method for cyclohexane oxidation. The method comprises a) forming a dispersion comprising liquid cyclohexane and an oxidant gas utilizing a high shear device, wherein the dispersion comprises oxidant gas bubbles with a mean diameter of less than about 5 ?m, and wherein the high shear device comprises at least one rotor and at least one stator; and b) hydrogenating the dispersion in the presence of a hydrogenation catalyst to form a product comprising cyclohexanol or cyclohexanone. In some embodiments, the oxidant comprises air, oxygen-enriched air, oxygen, or an oxygen-containing gas. In some embodiments, step a) of the method comprises forming the dispersion in the presence of an oxidation catalyst. Also disclosed herein is a system for oxidizing cyclohexane.Type: GrantFiled: December 1, 2009Date of Patent: January 3, 2012Assignee: H R D CorporationInventors: Abbas Hassan, Aziz Hassan, Gregory G. Borsinger, Krishnan Viswanathan, Rayford G. Anthony
-
Publication number: 20110315601Abstract: A method and system for processing naphtha, including a high shear mechanical device. In one embodiment, the method comprises forming a dispersion of gas in a naphtha hydrocarbon liquid in a high shear device prior to introduction in a cracking reactor/furnace. In another instance the system for processing naphtha comprises a high shear device for mechanically shearing hydrocarbons.Type: ApplicationFiled: December 15, 2010Publication date: December 29, 2011Applicant: H R D CORPORATIONInventors: Abbas Hassan, Aziz Hassan, Krishnan Viswanathan, Gregory G. Borsinger
-
Patent number: 8080685Abstract: A method for producing benzoic acid or a methylbenzoic acid isomer is disclosed which comprises forming a dispersion comprising oxygen-containing gas bubbles dispersed in either toluene or an xylene isomer, wherein the bubbles have a mean diameter less than 1 micron. The dispersion is then subjected to reaction conditions comprising a pressure of less than about 1013 kPa and a temperature of less than about 160° C., whereby at least a portion of the toluene or xylene isomer is partially oxidized to form benzoic acid or the corresponding methylbenzoic acid isomer, respectively. In some embodiments, the methylbenzoic acid isomer is an intermediate compound, and the method further includes subjecting any unreacted xylene isomer and the intermediate compound to further oxidization, to form 1,2-benzenedicarboxylic acid, 1,3-benzenedicarboxylic acid, or 1,4-benzenedicarboxylic acid. A system of apparatus for performing the method is also disclosed.Type: GrantFiled: June 12, 2008Date of Patent: December 20, 2011Assignee: H R D CorporationInventors: Abbas Hassan, Ebrahim Bagherzadeh, Rayford G. Anthony, Gregory Borsinger, Aziz Hassan
-
Patent number: 8080684Abstract: Methods and systems for the production of ethyl acetate are described herein. The methods and systems incorporate the novel use of a high shear device to promote dispersion and mixing of a carbonyl co-reactant (e.g. acetic acid, acetaldehyde) with ethanol. The high shear device may allow for lower reaction temperatures and pressures and may also reduce reaction time with existing catalysts.Type: GrantFiled: June 19, 2008Date of Patent: December 20, 2011Assignee: H R D CorporationInventors: Abbas Hassan, Ebrahim Bagherzadeh, Rayford G. Anthony, Gregory Borsinger, Aziz Hassan
-
Publication number: 20110300024Abstract: A system for production of a polymer that may include a first high shear mixing device configured for producing a nanodispersion comprising particles or bubbles having a mean diameter less than 1 micron dispersed in a monomer-containing liquid or gaseous phase; a pump configured for delivering a pressurized liquid stream comprising the monomer to the first high shear mixing device; and a vessel configured for receiving the nanodispersion and for maintaining a predetermined pressure and temperature.Type: ApplicationFiled: August 12, 2011Publication date: December 8, 2011Applicant: H R D CORPORATIONInventors: Abbas HASSAN, Ebrahim BAGHERZADEH, Rayford G. ANTHONY, Gregory BORSINGER, Aziz HASSAN
-
Patent number: 8071046Abstract: A method for removing hydrogen sulfide from a sour gas stream comprising hydrogen sulfide by oxidizing hydrogen sulfide in a converter by contacting the sour gas stream with an aqueous catalytic solution, thereby producing a desulfurized gas stream and a liquid stream comprising reduced catalyst and elemental sulfur, introducing an oxidant and the liquid stream comprising reduced catalyst and elemental sulfur into a high shear device and producing a dispersion wherein the mean bubble diameter of the oxidant gas in the dispersion is less than about 5 ?m, introducing the dispersion into a vessel from which a sulfur-containing slurry is removed and a regenerated catalyst stream is removed, wherein the sulfur slurry comprises elemental sulfur and aqueous liquid, and recycling at least a portion of the regenerated catalyst stream to the converter. A system of apparatus for carrying out the method is also provided.Type: GrantFiled: October 1, 2009Date of Patent: December 6, 2011Assignee: H R D CorporationInventors: Abbas Hassan, Ebrahim Bagherzadeh, Rayford G. Anthony, Gregory Borsinger, Aziz Hassan
-
Publication number: 20110293486Abstract: A method for hydrodesulfurization by forming a dispersion comprising hydrogen-containing gas bubbles with a mean diameter of less than 1 micron dispersed in a liquid phase comprising sulfur-containing compounds. Desulfurizing a liquid stream comprising sulfur-containing compounds by subjecting a fluid mixture comprising hydrogen-containing gas and the liquid to a shear rate greater than 20,000 s?1 to produce a dispersion of hydrogen in a continuous phase of the liquid and introducing the dispersion into a fixed bed hydrodesulfurization reactor from which a reactor product is removed. Systems of apparatus for hydrodesulfurization are also presented.Type: ApplicationFiled: August 9, 2011Publication date: December 1, 2011Applicant: H R D CORPORATIONInventors: Abbas HASSAN, Ebrahim BAGHERZADEH, Rayford G. ANTHONY, Gregory BORSINGER, Aziz HASSAN
-
Publication number: 20110268659Abstract: In this disclosure, methods and systems for drug delivery utilizing high shear are disclosed. In an embodiment, a method comprises (1) subjecting a therapeutic fluid containing a drug to high shear; and (2) obtaining a processed therapeutic fluid, wherein the processed therapeutic fluid contains the drug in nano-size. In an embodiment, a method comprises (1) subjecting a drug carrier and a therapeutic fluid containing a drug to high shear; and (2) obtaining a processed therapeutic fluid, wherein the processed therapeutic fluid contains the drug carrier loaded with the drug. In an embodiment, a method comprises (1) applying high shear to a drug carrier and a therapeutic fluid containing a drug; (2) obtaining a processed therapeutic fluid, wherein the processed therapeutic fluid contains the drug-loaded carrier; and (3) modifying the drug-loaded carrier with a targeting moiety to obtain a modified drug-loaded carrier.Type: ApplicationFiled: April 8, 2011Publication date: November 3, 2011Applicant: H R D CorporationInventors: Abbas HASSAN, Rayford G. ANTHONY, Aziz HASSAN