Hye Eun Cho

US Patent:

8288601, Oct 16, 2012

Filed:

May 14, 2012

Appl. No.:

13/471176

Inventors:

Sven Ivar Hommeltoft - Pleasant Hill CA, US
Hye Kyung Cho Timken - Albany CA, US
Steve Sarup Mathur - Danville CA, US

Assignee:

Chevron U.S.A. Inc. - San Ramon CA

International Classification:

C07C 2/56
C07C 2/06

US Classification:

585331, 585332, 585521, 585709

Abstract:

A process for reacting an iso-alkane, comprising:.

US Patent:

20120282150, Nov 8, 2012

Filed:

Jul 18, 2012

Appl. No.:

13/551904

Inventors:

Hye Kyung Cho Timken - Albany CA, US
Shawn Shlomo Winter - Salt Lake City UT, US
Howard Steven Lacheen - Richmond CA, US
Sven Ivar Hommeltoft - Pleasant Hill CA, US

Assignee:

Chevron U.S.A. Inc. - San Ramon CA

International Classification:

B01J 8/08

US Classification:

422187

Abstract:

We provide an alkylation process unit, comprising: a control system connected to an alkylation reactor, that enables the alkylation reactor to operate in both an alkylate mode that produces a gasoline blending component having a RON of 90 or higher and in a distillate mode that produces a second gasoline blending component having a RON of 85 or higher.

US Patent:

20130062253, Mar 14, 2013

Filed:

Sep 12, 2011

Appl. No.:

13/230757

Inventors:

Hye Kyung Cho Timken - Albany CA, US

Assignee:

Chevron U.S.A. Inc. - San Ramon CA

International Classification:

C10G 35/04

US Classification:

208 64

Abstract:

Integrated isomerization and ionic liquid catalyzed alkylation processes may comprise integrating ionic liquid alkylation and n-butane isomerization using a common distillation unit for separating an n-butane containing fraction from at least one of an alkylation hydrocarbon phase from an ionic liquid alkylation reactor and an isomerization hydrocarbon stream from an isomerization unit. The n-butane containing fraction may undergo isomerization to provide an isomerization reactor effluent comprising the isomerization hydrocarbon stream. An isobutane containing fraction, separated from at least one of the alkylation hydrocarbon phase and the isomerization hydrocarbon stream, may be recycled from the distillation unit to the ionic liquid alkylation reactor.

US Patent:

20130066132, Mar 14, 2013

Filed:

Sep 12, 2011

Appl. No.:

13/230767

Inventors:

Robert Fletcher Cleverdon - Walnut Creek CA, US
Christine Marie Phillips - Pleasant Hill CA, US
Hye Kyung Cho Timken - Albany CA, US

Assignee:

Chevron U.S.A. Inc. - San Ramon CA

International Classification:

C07C 2/54
B23P 17/04
B01J 19/00

US Classification:

585719, 422187, 294011

Abstract:

Methods for converting an HSOalkylation unit to an ionic liquid alkylation system configured for performing ionic liquid catalyzed alkylation processes may comprise connecting at least one component configured for ionic liquid catalyzed alkylation to at least one component of the HSOalkylation unit, wherein the at least one component of the HSOalkylation unit is retained, modified or adapted for use in the ionic liquid alkylation system. Ionic liquid catalyzed alkylation systems derived from existing conventional alkylation units, and ionic liquid catalyzed alkylation processes are also disclosed.

US Patent:

20130066133, Mar 14, 2013

Filed:

Sep 12, 2011

Appl. No.:

13/230774

Inventors:

Robert Fletcher Cleverdon - Walnut Creek CA, US
Christine Marie Phillips - Pleasant Hill CA, US
Hye Kyung Cho Timken - Albany CA, US

Assignee:

Chevron U.S.A. Inc. - San Ramon CA

International Classification:

C07C 2/58
B01J 19/00

US Classification:

585721, 422187

Abstract:

Methods for converting an HF alkylation unit to an ionic liquid alkylation system configured for performing ionic liquid catalyzed alkylation processes may comprise connecting at least one component configured for ionic liquid catalyzed alkylation to at least one component of the HF alkylation unit, wherein the at least one component of the HF alkylation unit is retained, modified or adapted for use in the ionic liquid alkylation system. An ionic liquid alkylation system derived from an existing or prior HF alkylation unit is also disclosed.

US Patent:

20130209324, Aug 15, 2013

Filed:

Oct 26, 2012

Appl. No.:

13/662250

Inventors:

Hye Kyung Cho Timken - Albany CA, US
Shawn Stephen Healy - Eagle Mountain UT, US
Shawn Shlomo Winter - Salt Lake City UT, US

Assignee:

Chevron U.S.A. Inc. - San Ramon CA

International Classification:

B01J 19/00

US Classification:

422187

Abstract:

We provide an apparatus for preparing a used catalyst for disposal, comprising:

US Patent:

20130243672, Sep 19, 2013

Filed:

May 2, 2013

Appl. No.:

13/875393

Inventors:

Hye Kyung Cho Timken - Albany CA, US
Shawn Shlomo Winter - Salt Lake City UT, US
Howard Steven Lacheen - Richmond CA, US
Sven Ivar Hommeltoft - Pleasant Hill CA, US

Assignee:

CHEVRON U.S.A. INC. - San Ramon CA

International Classification:

B01J 19/00

US Classification:

422630, 422129

Abstract:

A process unit, comprising: a) an alkylation reactor; and b) a control system that enables the alkylation reactor to be operated in an alkylate mode and in a distillate mode; wherein the alkylation reactor can switch back and forth from operating in the alkylate mode to the distillate mode.

US Patent:

20140005459, Jan 2, 2014

Filed:

Aug 29, 2013

Appl. No.:

14/013631

Inventors:

Hye Kyung Cho Timken - Albany CA, US
Zunqing He - San Rafael CA, US
Russell Evan Cooper - Martinez CA, US

Assignee:

CHEVRON CORPORATION - San Ramon CA

International Classification:

C07C 7/12

US Classification:

585823

Abstract:

We provide a hydrodechlorination and hydrogen chloride recovery process, comprising: