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Title: Apparatus and method for solar coal gasification

Abstract

Apparatus for using focused solar radiation to gasify coal and other carbonaceous materials. Incident solar radiation is focused from an array of heliostats onto a tower-mounted secondary mirror which redirects the focused solar radiation down through a window onto the surface of a vertically-moving bed of coal, or a fluidized bed of coal, contained within a gasification reactor. The reactor is designed to minimize contact between the window and solids in the reactor. Steam introduced into the gasification reactor reacts with the heated coal to produce gas consisting mainly of carbon monoxide and hydrogen, commonly called "synthesis gas", which can be converted to methane, methanol, gasoline, and other useful products. One of the novel features of the invention is the generation of process steam at the rear surface of the secondary mirror.

Inventors:
 [1]
  1. (Moraga, CA)
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
863686
Patent Number(s):
4229184
Assignee:
United States of America as represented by United States (Washington, DC) LLNL
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
apparatus; method; solar; coal; gasification; focused; radiation; gasify; carbonaceous; materials; incident; array; heliostats; tower-mounted; secondary; mirror; redirects; window; surface; vertically-moving; bed; fluidized; contained; reactor; designed; minimize; contact; solids; steam; introduced; reacts; heated; produce; gas; consisting; mainly; carbon; monoxide; hydrogen; commonly; called; synthesis; converted; methane; methanol; gasoline; useful; products; novel; features; generation; process; rear; moving bed; gasification reactor; useful products; rear surface; carbonaceous materials; carbon monoxide; fluidized bed; synthesis gas; carbonaceous material; solar radiation; coal gasification; coal gas; secondary mirror; solar coal; incident solar; produce gas; /48/126/203/422/518/

Citation Formats

Gregg, David W. Apparatus and method for solar coal gasification. United States: N. p., 1980. Web.
Gregg, David W. Apparatus and method for solar coal gasification. United States.
Gregg, David W. Tue . "Apparatus and method for solar coal gasification". United States. https://www.osti.gov/servlets/purl/863686.
@article{osti_863686,
title = {Apparatus and method for solar coal gasification},
author = {Gregg, David W.},
abstractNote = {Apparatus for using focused solar radiation to gasify coal and other carbonaceous materials. Incident solar radiation is focused from an array of heliostats onto a tower-mounted secondary mirror which redirects the focused solar radiation down through a window onto the surface of a vertically-moving bed of coal, or a fluidized bed of coal, contained within a gasification reactor. The reactor is designed to minimize contact between the window and solids in the reactor. Steam introduced into the gasification reactor reacts with the heated coal to produce gas consisting mainly of carbon monoxide and hydrogen, commonly called "synthesis gas", which can be converted to methane, methanol, gasoline, and other useful products. One of the novel features of the invention is the generation of process steam at the rear surface of the secondary mirror.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1980},
month = {1}
}

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