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Title: Apparatus for solar coal gasification

Abstract

Apparatus for using focused solar radiation to gasify coal and other carbonaceous materials is described. Incident solar radiation is focused from an array of heliostats through a window onto the surface of a moving 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 in one embodiment at the rear surface of a secondary mirror used to redirect the focused sunlight. Another novel feature of the invention is the location and arrangement of the array of mirrors on an inclined surface (e.g., a hillside) to provide for direct optical communication of said mirrors and the carbonaceous feed without a secondary redirecting mirror.

Inventors:
Issue Date:
OSTI Identifier:
6402145
Assignee:
Dept. of Energy TIC; ERA-81-024889; EDB-81-077846
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; 14 SOLAR ENERGY; COAL GASIFICATION; SOLAR PROCESS HEAT; CARBONACEOUS MATERIALS; CHEMICAL REACTORS; FLUIDIZED BED; HELIOSTATS; MIRRORS; SOLAR FURNACES; STEAM; SYNTHESIS GAS; ENERGY; EQUIPMENT; FLUIDS; FURNACES; GASES; GASIFICATION; HEAT; MATERIALS; PROCESS HEAT; SOLAR EQUIPMENT; THERMOCHEMICAL PROCESSES; 010404* - Coal, Lignite, & Peat- Gasification; 140905

Citation Formats

Gregg, D.W. Apparatus for solar coal gasification. United States: N. p., 1980. Web.
Gregg, D.W. Apparatus for solar coal gasification. United States.
Gregg, D.W. Mon . "Apparatus for solar coal gasification". United States.
@article{osti_6402145,
title = {Apparatus for solar coal gasification},
author = {Gregg, D.W.},
abstractNote = {Apparatus for using focused solar radiation to gasify coal and other carbonaceous materials is described. Incident solar radiation is focused from an array of heliostats through a window onto the surface of a moving 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 in one embodiment at the rear surface of a secondary mirror used to redirect the focused sunlight. Another novel feature of the invention is the location and arrangement of the array of mirrors on an inclined surface (e.g., a hillside) to provide for direct optical communication of said mirrors and the carbonaceous feed without a secondary redirecting mirror.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1980},
month = {8}
}