David D Manley

US Patent:

53355040, Aug 9, 1994

Filed:

Mar 5, 1993

Appl. No.:

8/026937

Inventors:

Charles A. Durr - Houston TX
David B. Manley - Rolla MO
Robert L. McKee - Houston TX

Assignee:

The M. W. Kellogg Company - Houston TX

International Classification:

F25J 300

US Classification:

62 20

Abstract:

A process for recovering CO. sub. 2 from a mixture of light hydrocarbons, e. g. light hydrocarbons produced from a CO. sub. 2 injection enhanced oil recovery. The mixture is distilled in a distributive zone with CO. sub. 2 produced overhead and in the bottoms. The overhead and bottoms produced from the distributive zone are then fed to first and second concentrating distillation zones, respectively. The first concentrating zone produces a bottoms product rich in CO. sub. 2 and an overhead product rich in methane and lean in CO. sub. 2. The second concentrating zone is refluxed with lean oil and produces a CO. sub. 2 distillate and a CO. sub. 2 -lean bottoms product. In various embodiments, at least a section of each of the concentrating zones are placed in a single column, the CO. sub. 2 product streams are taken as a side draw, vapor from the first concentrating zone is used in an open cycle heat pump to heat the second concentrating zone, the distributive zone is thermally coupled with one or both of the concentrating zones, and the distributive zone and certain sections of the concentrating zones are physically integrated into a single column.

US Patent:

57559333, May 26, 1998

Filed:

Jul 24, 1995

Appl. No.:

8/448064

Inventors:

Thomas P. Ognisty - The Woodlands TX
David B. Manley - Rolla MO

Assignee:

The M. W. Kellogg Company - Houston TX

International Classification:

B01D 314

US Classification:

202158

Abstract:

An integrated distillation column having a partitioned stripping or absorption section is presented. The integrated stripping/distillation column comprises a single shell housing a refluxed absorption section and a reboiled stripping section. The stripping section is partitioned by a vertical wall into first and second separate portions having upper end in fluid communication the absorption section. The stripping portions include fluid isolated lower ends having separate reboilers. In the integrated absorption/distillation column, the absorption section is partitioned and separate reflux loops are provided for each portion of the absorption section. In such a manner, a two column distillation process can be combined into one for achieving space and equipment savings.

US Patent:

57097801, Jan 20, 1998

Filed:

Dec 12, 1996

Appl. No.:

8/766369

Inventors:

Thomas P. Ognisty - The Woodlands TX
David B. Manley - Rolla MO

Assignee:

The M. W. Kellogg Company - Houston TX

International Classification:

B01D 314

US Classification:

202158

Abstract:

An integrated distillation column having a partitioned stripping or absorption section is presented. The integrated stripping/distillation column comprises a single shell housing a refluxed absorption section and a reboiled stripping section. The stripping section is partitioned by a vertical wall into first and second separate portions having upper end in fluid communication the absorption section. The stripping portions include fluid isolated lower ends having separate reboilers. In the integrated absorption/distillation column, the absorption section is partitioned and separate reflux loops are provided for each portion of the absorption section. In such a manner, a two column distillation process can be combined into one for achieving space and equipment savings.