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Inventor:
Schmidt; Robert J.
Address:
Barrington, IL
No. of patents:
26
Patents:












Patent Number Title Of Patent Date Issued
8242320 Cumene production with high selectivity August 14, 2012
Cumene production methods are disclosed, based on the alkylation of benzene with propylene, in which byproducts of the alkylation reaction are advantageously reduced to achieve a high cumene selectivity. This may be attained by (i) reducing the portion of the total alkylation effluent
7888537 Solid acid catalyst and process for decomposition of cumene hydroperoxide February 15, 2011
The present invention provides a process for decomposing a cumene hydroperoxide to produce phenol and acetone. The process utilizes a solid catalyst that can be non-layered or layered. The process includes: (1) introducing a process stream containing cumene hydroperoxide into a react
7700511 Aromatic transalkylation using a modified LZ-210 zeolite April 20, 2010
A process for converting polyalkylaromatics to monoalkylaromatics, particularly cumene, in the presence of a modified LZ-210 zeolite catalyst is disclosed. The process attains greater selectivity, reduced formation of undesired byproducts, and increased activity.
7652181 Alkylation reactor design with effluent recycle and impure benzene regeneration January 26, 2010
An improved alkylation reactor design is disclosed. The design uses reactor effluent recycle to reduce the difference in temperature across the reaction zone improving selectivity and insuring the maintenance of a liquid phase in the reactor.
7622622 Process for the high yield production of monoalkylaromatics November 24, 2009
Disclosed is a process and apparatus for alkylating light olefin with benzene at near but less than full conversion of the olefin. We have found that stopping below full conversion of the olefin maximizes yield of monoalkylbenzene.
7517825 Aromatic transalkylation using a LZ-210 zeolite April 14, 2009
A process for converting polyalkylaromatics to monoalkylaromatics, particularly cumene, in the presence of a modified LZ-210 zeolite is disclosed. The process attains greater selectivity, reduced formation of undesired byproducts, and increased activity.
7420098 Dual zone aromatic alkylation process September 2, 2008
A process for the catalytic alkylation of an aromatic substrate with an alkylating agent is disclosed that comprises contacting the aromatic substrate and the alkylating agent in sequential alkylation zones to obtain an alkylaromatic. The first catalyst comprises UZM-8 zeolite and th
7417003 Solid acid catalyst and process for decomposition of cumene hydroperoxide August 26, 2008
The present invention provides a catalyst particle of an inner core, an outer layer surrounding and bonded to the inner core, the outer layer of a zeolite beta catalyst, and the outer layer having a volumetric fraction from about 0.17 to about 0.62 of the entire catalyst particle.
7268267 Alkylation process using UZM-8 zeolite September 11, 2007
A process for the alkylation of aromatics with olefins using a solid catalyst bed containing UZM-8 zeolite is disclosed. A polyalkylated aromatic is passed to the catalyst bed to reduce the concentration of the olefin at alkylation conditions. A portion of the effluent recovered from
7141701 Decomposition of cumene hydroperoxide November 28, 2006
A process for decomposing a cumene oxidation product mixture containing cumene hydroperoxide (CHP) and dimethylphenolcarbinol (DMPC) to produce phenol and acetone.
7141700 Decomposition of cumene hydroperoxide November 28, 2006
A process for the decomposition of a cumene oxidation product mixture to produce phenol and acetone with reduced by-product formation by introducing the cumene oxidation mixture into an inlet of a decomposing vessel containing indirect heat exchange surfaces wherein the cumene oxidat
6894201 Process and apparatus for the removal of nitrogen compounds from a fluid stream May 17, 2005
Disclosed is a process and apparatus for removing nitrogen compounds from an alkylation substrate such as benzene. A conventional adsorbent bed can be used to adsorb basic organic nitrogen compounds and a hot adsorbent bed of acidic molecular sieve can adsorb the weakly basic nitrogen co
6380452 Isomerization process using membrane for recovery of halides April 30, 2002
A process for recovering halides from hydrocarbon containing streams is disclosed using a sulfonated hexafluro bis-A-polysulfone membrane of polymers and copolymers having the polymer repeat unit of the formula: ##STR1##in the polymer or copolymer. This process is applicable to recoverin
6281405 Alkylation process using membrane for recovery of halides August 28, 2001
A process for recovering halides from hydrocarbon containing streams is disclosed using a sulfonated hexafluro bis-A-polysulfone membrane of polymers and copolymers having the polymer repeat unit of the formula: ##STR1##in the polymer or copolymer. This process is applicable to recoverin
6248931 Membrane process for the recovery of halides from hydrocarbon-containing streams June 19, 2001
A process for recovering halides from hydrocarbon containing streams is disclosed using a sulfonated hexafluro bis-A-polysulfone membrane of polymers and copolymers having the polymer repeat unit of the formula: ##STR1##in the polymer or copolymer. This process is applicable to recoverin
5858209 Catalytic reforming process with increased aromatics yield January 12, 1999
A processing step is added to an existing catalytic reforming unit to increase the yield of aromatic product. The additional processing comprises separation of product from the reforming unit into an aromatic concentrate and a low-octane recycle stream which is upgraded by aromatizat
5831139 Production of aliphatic gasoline November 3, 1998
A process combination is disclosed to selectively upgrade naphtha in accordance with expected trends leading to more-aliphatic gasolines. Such gasolines contain lower concentrations of aromatics and have lower end points with concomitant reduced harmful automotive emissions. The present
5705712 Integrated process for producing diisopropyl ether, an isopropyl tertiary alkyl ether and isopro January 6, 1998
A highly integrated process for concurrently producing diisopropyl ether and an isopropyl tertiary alkyl ether has been developed. Optionally, high purity isopropyl alcohol may also be collected as a product. In a first reactor, propylene and water are reacted to form isopropyl alcohol,
5689014 Integrated process for producing diisopropyl ether and an isopropyl tertiary alkyl ether November 18, 1997
A highly integrated process for concurrently producing diisopropyl ether and an isopropyl tertiary alkyl ether has been developed. In a first reactor, propylene and water are reacted to form isopropyl alcohol, a portion of which is further reacted to form diisopropyl ether. After rem
5672265 Catalytic reforming process with increased aromatics yield September 30, 1997
A processing step is added to an existing catalytic reforming unit to increase the yield of aromatic product. The additional processing comprises separation of product from the reforming unit into an aromatic concentrate and a low-octane recycle stream which is upgraded by aromatizat
5565617 Process for purifying an alkylate stream October 15, 1996
A process for purifying an alkylate feedstream is disclosed. The feedstream contains hydrogen, hydrogen chloride, C.sub.2 -C.sub.7+ alkanes, C.sub.2 -C.sub.6 alkenes and C.sub.2 -C.sub.6 alkyl halides. The process involves flowing the alkylate through a series of separation zones and a r
5504257 Process for producing diisopropyl ether with removal of acid material April 2, 1996
A process for the production of diisopropyl ether where acid is removed, without extraction, from the reactor effluent before being recycled to the reactor or being passed to downstream processing units has been developed. The process involves (1) reacting propylene and water to produce
5498810 Selective isoparaffin synthesis from naphtha March 12, 1996
A process combination is disclosed to selectively upgrade naphtha to obtain products suitable for further upgrading to reformulated fuels. A naphtha feedstock is hydrogenated to saturate aromatics, followed by selective isoparaffin synthesis to yield light and heavy naphtha and isobutane
5473105 Process for concurrently producing diisopropyl ether and isoproyl ethyl ether December 5, 1995
A process for concurrently producing diisopropyl ether and isopropyl ethyl ether from water, ethanol from an independent source, and propylene, has been developed. The product mixture may be used as a high octane number booster due mainly to the presence of the diisopropyl ether and to a
5382350 High hydrogen and low coke reforming process January 17, 1995
A low severity continuous reforming process that operates at conditions to provide a low coke production provides an improved reformulated gasoline fuel. The conditions for the reforming operation include high space velocity, relatively high temperature and low hydrogen to hydrocarbon
5294328 Production of reformulated gasoline March 15, 1994
A process combination is disclosed to reduce the aromatics content of a key component of gasoline blends. Paraffins contained in catalytic reformates are conserved and upgraded by separation and isomerization, reducing the reforming severity required to achieve a given product octane wit










 
 
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