Andrew S Zarchy

US Patent:

6339179, Jan 15, 2002

Filed:

Jul 25, 2000

Appl. No.:

09/625707

Inventors:

Russell C. Schulz - Glen Ellyn IL
Gregory J. Gajda - Mount Prospect IL
Guy B. Woodle - Mount Prospect IL
Andrew S. Zarchy - Kildeer IL

Assignee:

UOP LLC - Des Plaines IL

International Classification:

C07C 258

US Classification:

585323, 585315, 585316, 585313, 585312, 585314, 585310, 585319, 585320, 585449, 585450, 585475, 585467

Abstract:

A process for producing alkyl aromatics using a transalkylation reaction zone and an alkylation reaction zone is disclosed. One portion of the transalkylation reaction zone effluent passes to an alkylation reaction zone where an aromatic substrate is alkylated to the desired alkyl aromatic. At least a portion of the alkylation reaction zone effluent and another portion of the transalkylation reaction zone effluent pass to a product recovery zone. This process decreases the capital and operating costs of recycling aromatic substrate to the transalkylation and/or alkylation reaction zone while maintaining operational flexibility. This process is well suited for solid transalkylation and alkylation catalysts. Ethylbenzene and cumene may be produced by this process.

US Patent:

6858769, Feb 22, 2005

Filed:

Oct 18, 2002

Appl. No.:

10/274693

Inventors:

Guy B. Woodle - Mount Prospect IL, US
Andrew S. Zarchy - Kildeer IL, US
Jeffery C. Bricker - Buffalo Grove IL, US
Andrzej Z. Ringwelski - Marengo IL, US

Assignee:

UOP LLC - Des Plaines IL

International Classification:

C07C005/42
C07C005/333
B01J023/58
C10G047/10
C10G047/14

US Classification:

585658, 502178, 502304, 502325, 502328, 502329, 502330, 502333, 502334, 502339, 502332, 502344, 502355, 50252714, 50252715, 585654, 585660, 585440, 585443, 585467, 585709, 585721, 585664, 585670, 585671, 585734, 585750, 585477, 585480, 585482, 585250, 585266, 585267, 585268, 585269, 585648, 585653, 585752, 208106, 208107, 208108, 208112, 208113, 208121, 208122, 208124

Abstract:

A catalyst for the selective oxidation of hydrogen has been developed. It comprises an inert core such as cordierite and an outer layer comprising a lithium aluminate support. The support has dispersed thereon a platinum group metal and a promoter metal, e. g. platinum and tin respectively. This catalyst is particularly effective in the selective oxidation of hydrogen in a dehydrogenation process.

US Patent:

6894201, May 17, 2005

Filed:

Dec 19, 2003

Appl. No.:

10/741470

Inventors:

Robert J. Schmidt - Barrington IL, US
Andrew S. Zarchy - Kildeer IL, US

Assignee:

UOP LLC - Des Plaines IL

International Classification:

C07C002/66

US Classification:

585448

Abstract:

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 compounds such as nitrites. Water facilitates the adsorption of the weakly basic nitrogen compounds. Running an alkylation substrate stream from a fractionation column of elevated temperature and suitable water concentration to the hot adsorbent bed may be advantageous.

US Patent:

7205448, Apr 17, 2007

Filed:

Dec 19, 2003

Appl. No.:

10/740872

Inventors:

Gregory J. Gajda - Mount Prospect IL, US
Guy B. Woodle - Mount Prospect IL, US
Deng-Yang Jan - Elk Grove Village IL, US
Andrew S. Zarchy - Kildeer IL, US

Assignee:

UOP LLC - Des Plaines IL

International Classification:

C07C 7/12
C10G 25/00

US Classification:

585823, 585448, 585820, 585822, 585833, 208247, 208254 R, 208299, 208300, 208301, 502 66

Abstract:

At lower temperatures an acidic molecular sieve adsorbent preferentially adsorbs water and basic organic nitrogen compounds over weakly basic organic nitrogen compounds such as nitrites. Elevated temperatures improve the capacity of acidic molecular sieve adsorbents to adsorb nitrites in the presence of water.

US Patent:

7744828, Jun 29, 2010

Filed:

Jan 28, 2005

Appl. No.:

11/046097

Inventors:

Robert J. Schmidt - Des Plaines IL, US
Andrew S. Zarchy - Des Plaines IL, US

Assignee:

UOP LLC - Des Plaines IL

International Classification:

B01J 8/04
B01J 10/00
B01J 19/00
B01J 8/02
B01J 35/02
C07C 2/00
C07C 4/00
C07C 6/00

US Classification:

422190, 422188, 422189, 422198, 422211, 585323, 585446, 585709

Abstract:

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 compounds such as nitrites. Water facilitates the adsorption of the weakly basic nitrogen compounds. Running an alkylation substrate stream from a fractionation column of elevated temperature and suitable water concentration to the hot adsorbent bed may be advantageous.

US Patent:

7799117, Sep 21, 2010

Filed:

Sep 27, 2006

Appl. No.:

11/535630

Inventors:

Lin Li - Albany CA, US
Mark E. Schott - Palatine IL, US
Andrew S. Zarchy - Kildeer IL, US
Bradley P. Russell - Wheaton IL, US

Assignee:

UOP LLC - Des Plaines IL

International Classification:

B01D 53/02

US Classification:

95 96, 95 99, 95105, 95106, 95114, 96126, 96130, 96146

Abstract:

A thermal sink is used to recover heat from a product gas leaving an adsorption vessel in a thermal swing adsorption process. Heat that is recovered from the product gas is used to heat a regeneration gas during the subsequent regeneration of the adsorbent material within the adsorption vessel. The step in which the regenerated bed of adsorbent material is cooled prior to returning to adsorption mode is eliminated.

US Patent:

55169635, May 14, 1996

Filed:

Jun 16, 1994

Appl. No.:

8/260600

Inventors:

Andrew S. Zarchy - Amawalk NY
Chien C. Chao - Millwood NY

Assignee:

UOP - Des Plaines IL

International Classification:

C07C 522

US Classification:

585737

Abstract:

An adsorption arrangement in combination with a catalytic hydrocarbon conversion process suspends non-hydrocarbon materials that act to enhance the operation of the conversion zone by using an adsorption zone arrangement to keep the compounds in recirculation about the reaction zone. The process of this invention is particularly useful for the isomerization of hydrocarbons wherein the adsorption zone arrangement operates to maintain chloride compounds in the reaction zone and to prevent contamination of product streams with the chloride compounds. This invention can be used in combination with traditional adsorptive methods of removing contaminant from feedstreams that enter reaction zones. The invention is also useful for sulfided catalysts where it is desirable to maintain sulfur within the reaction zone and keep sulfur contamination from entering product streams.

US Patent:

54156823, May 16, 1995

Filed:

Nov 12, 1993

Appl. No.:

8/151244

Inventors:

Andrew S. Zarchy - Amawalk NY
Kirit M. Patel - Hopewell Junction NY

Assignee:

UOP - Des Plaines IL

International Classification:

B01D 53047

US Classification:

95101

Abstract:

A process claimed for the removal of VOCs from fluid streams. The process comprises a vacuum swing adsorption zone containing at least 2 adsorption beds wherein the adsorbent beds are cocurrently purged with at diluent stream comprising an inert gas prior to a countercurrent evacuation step. In addition, the adsorbent beds may contain a first adsorption layer comprising an adsorbent selective for the adsorption of the inert gas, whereby the inert gas is retained within the VSA system to prevent the creation of an explosive mixture upon the condensation of the desorbed VOCs.