Paul David Morrow

US Patent:

7699914, Apr 20, 2010

Filed:

Dec 9, 2005

Appl. No.:

11/299162

Inventors:

Luke N. Morrow - Midland TX, US
Paul D. Morrow - Midland TX, US
David C. Morrow - Midland TX, US

International Classification:

B01D 53/14

US Classification:

96234, 95172, 95176, 95177, 95199, 95227, 95236

Abstract:

A method of using a triple-effect absorption system to recover methane from landfill gas contaminated with COand trace contaminates such as chlorinated hydrocarbons and aromatics involves processing the landfill gas with three absorbers and a flash system. One absorber uses a solvent to absorb the trace contaminants from the landfill gas, the second absorber in conjunction with the flash system extracts COfrom the gas, and just a first portion of that COis used for stripping the trace contaminates from the solvent in the third absorber. The rest of the extracted COis vented to atmosphere to prevent dampening the combustion of the trace contaminants absorbed by the first portion of CO.

US Patent:

20170107163, Apr 20, 2017

Filed:

Jan 2, 2017

Appl. No.:

15/396751

Inventors:

David C. Morrow - Midland TX, US
Paul D. Morrow - Midland TX, US
Luke N. Morrow - Midland TX, US

International Classification:

C07C 7/11
B01D 53/14
C10L 3/10

Abstract:

A method for recovering methane gas from a landfill involves the use of a main absorber, a flash system, an optional ancillary absorber and an optional polishing absorber. The recovered gas is maintained at a temperature that enhances a solvent's ability to absorb carbon dioxide from the recovered gas. While the main absorber uses the solvent for absorbing most of the carbon dioxide from the recovered gas, the flash system removes much of the carbon dioxide from the solvent exiting the main absorber. In some examples, at least portion of the flash system operates at subatmospheric pressure to create a vacuum that draws in a generally inert stripper gas (e.g., air, nitrogen, etc.) at atmospheric pressure. The stripper gas helps remove carbon dioxide from the solvent in the flash system.

US Patent:

20160237007, Aug 18, 2016

Filed:

Apr 22, 2016

Appl. No.:

15/135885

Inventors:

David C. Morrow - Midland TX, US
Paul D. Morrow - Midland TX, US
Luke N. Morrow - Midland TX, US

International Classification:

C07C 7/11
B01D 53/14
C10L 3/10

Abstract:

A method for recovering methane gas from a landfill involves the use of a main absorber, a flash system, an optional ancillary absorber and an optional polishing absorber. The recovered gas is maintained at a temperature that enhances a solvent's ability to absorb carbon dioxide from the recovered gas. While the main absorber uses the solvent for absorbing most of the carbon dioxide from the recovered gas, the flash system removes much of the carbon dioxide from the solvent exiting the main absorber. In some examples, at least portion of the flash system operates at subatmospheric pressure to create a vacuum that draws in a generally inert stripper gas (e.g., air, nitrogen, etc.) at atmospheric pressure. The stripper gas helps remove carbon dioxide from the solvent in the flash system.