skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Production of Hydrogen from Underground Coal Gasification

Abstract

A system of obtaining hydrogen from a coal seam by providing a production well that extends into the coal seam; positioning a conduit in the production well leaving an annulus between the conduit and the coal gasification production well, the conduit having a wall; closing the annulus at the lower end to seal it from the coal gasification cavity and the syngas; providing at least a portion of the wall with a bifunctional membrane that serves the dual purpose of providing a catalyzing reaction and selectively allowing hydrogen to pass through the wall and into the annulus; and producing the hydrogen through the annulus.

Inventors:
 [1]
  1. Pleasanton, CA
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
953725
Patent Number(s):
7431084
Application Number:
11/519,688
Assignee:
The Regents of the University of California (Oakland, CA)
Patent Classifications (CPCs):
E - FIXED CONSTRUCTIONS E21 - EARTH DRILLING E21B - EARTH DRILLING, e.g. DEEP DRILLING
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English

Citation Formats

Upadhye, Ravindra S. Production of Hydrogen from Underground Coal Gasification. United States: N. p., 2008. Web.
Upadhye, Ravindra S. Production of Hydrogen from Underground Coal Gasification. United States.
Upadhye, Ravindra S. Tue . "Production of Hydrogen from Underground Coal Gasification". United States. https://www.osti.gov/servlets/purl/953725.
@article{osti_953725,
title = {Production of Hydrogen from Underground Coal Gasification},
author = {Upadhye, Ravindra S},
abstractNote = {A system of obtaining hydrogen from a coal seam by providing a production well that extends into the coal seam; positioning a conduit in the production well leaving an annulus between the conduit and the coal gasification production well, the conduit having a wall; closing the annulus at the lower end to seal it from the coal gasification cavity and the syngas; providing at least a portion of the wall with a bifunctional membrane that serves the dual purpose of providing a catalyzing reaction and selectively allowing hydrogen to pass through the wall and into the annulus; and producing the hydrogen through the annulus.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2008},
month = {10}
}

Patent:

Save / Share: