Jeffrey S Morrow

US Patent:

7078011, Jul 18, 2006

Filed:

Mar 30, 2004

Appl. No.:

10/812084

Inventors:

Jeffrey M. Morrow - Buffalo NY, US
Marianne Corrao - The Woodlands TX, US
Steven Hylkema - Tonawanda NY, US

Assignee:

Praxair Technology, Inc. - Danbury CT

International Classification:

C01B 3/02

US Classification:

4236481, 95139, 423220, 423230, 423652

Abstract:

A method of storing and supplying a gaseous hydrogen product to a pipeline under a product purity specification in which a hydrogen stream made up of gaseous hydrogen is compressed to form a compressed hydrogen stream and introduced into a salt cavern for storage. A crude hydrogen stream, contaminated from storage in the salt cavern is recovered and purified by sufficiently removing at least carbon dioxide and water vapor to produce a hydrogen product stream having an impurity level at or below the product purity specification. The hydrogen product stream is supplied back to the pipeline. Alternatively, during periods of low demand, hydrogen produced by a production facility is both purified and supplied to the pipeline and stored in the salt cavern. During high demand period, both the output of the production facility and hydrogen retrieved from the salt cavern are purified and supplied to the pipeline.

US Patent:

20120148485, Jun 14, 2012

Filed:

Dec 9, 2010

Appl. No.:

12/964163

Inventors:

JEFFREY M. MORROW - WILLIAMSVILLE NY, US
MONICA ZANFIR - AMHERST NY, US
RAYMOND F. DRNEVICH - CLARENCE CENTER NY, US

International Classification:

C01B 3/24
B01J 19/00

US Classification:

423650, 422623

Abstract:

The present invention provides a steam methane reforming process and system utilizing an integrated steam system having both high pressure and low pressure steam circuits. According to this invention, substantially the entire stream of treated boiler feed water leaving the deaerator is pressurized and sent to the boiler feed water heater at elevated pressures. The resulting high pressure heated boiler feed water is split with a portion used as the feed to make low pressure steam and the balance is sent to the high pressure steam circuit.