Christopher D Robbins

US Patent:

8631660, Jan 21, 2014

Filed:

Mar 23, 2011

Appl. No.:

13/069456

Inventors:

Bhaskar Pemmi - Bangalore Karnataka, IN
Anil Kumar Sharma - Bangalore Karnataka, IN
Rajarshi Saha - Bangalore Karnataka, IN
Indrajit Mazumder - Bangalore Karnataka, IN
Qiong Zhou - Houston TX, US
Christopher Michael Robbins - Houston TX, US
Paul Roberts Scarboro - Houston TX, US
Ann Verwilst Driscoll - Greenville SC, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

F25B 7/00

US Classification:

62 79, 622383

Abstract:

The present application and the resultant patent provide an integrated gasification combined cycle system. The integrated gasification combined cycle system may include a gas turbine engine, one or more power plant components, one or more carbon dioxide compressors, and a vapor absorption chiller. The vapor absorption chiller is driven by a waste heat source flow from the carbon dioxide compressors to produce a chilling medium flow to cool the power plant components.

US Patent:

20200062676, Feb 27, 2020

Filed:

Aug 23, 2019

Appl. No.:

16/549804

Inventors:

- Bloomfield NJ, US
Christopher Robbins - Pasadena TX, US

Assignee:

LUMMUS TECHNOLOGY LLC - Bloomfield NJ

International Classification:

C07C 5/25
C07C 7/00
C07C 7/04
B01J 8/00
B01D 3/00
B01D 3/42

Abstract:

Processes for the production of high purity isobutylene are disclosed. The processes may include supplying a mixed C4 feed stream to a catalytic distillation column, which may contain a butene isomerization catalyst. 1-butene is isomerized to 2-butene and concurrently in the catalytic distillation column the 2-butene is separated from the isobutane and isobutylene. The overheads fraction comprising the isobutane and isobutylene is then condensed in an overheads system and fed to a splitter, where the isobutane is separated from the isobutylene. The process further includes operating the catalytic distillation column at an overheads temperature greater than a bottoms temperature of the splitter, and heating a portion of the splitter bottoms stream via indirect heat exchange with at least a portion of the catalytic distillation column overheads fraction, thereby producing a heated bottoms stream (reboil vapor) fed to the splitter and a cooled overheads fraction.