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Title: Process for the production of ethylene and other hydrocarbons from coal

Abstract

The subject invention comprises the steps of first reacting particulate coal with methane at a temperature in the approximate range of 500/sup 0/C to 1100/sup 0/C and at a partial pressure of methane of less than about 200 psig for a period of less than 10 seconds. More preferably, the method of the subject invention is carried out at a temperature of approximately 850/sup 0/C to 1000/sup 0/C and a pressure of 50 psig for a period of approximately 1.5 seconds. Surprisingly, it has been found that in the practice of the subject invention not only are commercially significant quantities of ethylene produced, namely yields in excess of 10% (percent carbon converted to product), along with economically significant quantities of-benzene and light oils, namely toluene and xylene, but also that there is little, if any, net consumption of methane in the reaction and possibly even a small net production. Since it is apparent that the carbonaceous solids or char remaining after the reaction is carried out may be burned to provide the necessary energy to carry out the process of the subject invention, it is apparent that the subject invention advantageously provides a method for the conversion of coal tomore » economically significant quantities of ethylene, benzene and light oils while requiring only coal and, possibly, small amounts of make-up methane. Other objects and advantages of the subject invention will be apparent to those skilled in the art from a consideration of the attached drawings, the detailed description of the invention, and the experimental examples set forth below.« less

Inventors:
;
Issue Date:
OSTI Identifier:
6000715
Application Number:
ON: TI85006010
Assignee:
Dept. of Energy EDB-85-031649
DOE Contract Number:  
AC02-76CH00016
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
10 SYNTHETIC FUELS; BENZENE; YIELDS; CHARS; COAL; CHEMICAL REACTIONS; PYROLYSIS; ETHYLENE; METHANE; CONTROLLED ATMOSPHERES; TOLUENE; XYLENES; CHEMICAL FEEDSTOCKS; CHEMICAL REACTORS; COAL TAR; EXPERIMENTAL DATA; FLASH HEATING; HYDROGEN SULFIDES; PRESSURE DEPENDENCE; PRODUCTION; REMOVAL; TEMPERATURE DEPENDENCE; ALKANES; ALKENES; ALKYLATED AROMATICS; AROMATICS; ATMOSPHERES; CARBONACEOUS MATERIALS; CHALCOGENIDES; DATA; DECOMPOSITION; ENERGY SOURCES; FOSSIL FUELS; FUELS; HEATING; HYDROCARBONS; HYDROGEN COMPOUNDS; INFORMATION; MATERIALS; NUMERICAL DATA; ORGANIC COMPOUNDS; OTHER ORGANIC COMPOUNDS; PYROLYSIS PRODUCTS; SULFIDES; SULFUR COMPOUNDS; TAR; THERMOCHEMICAL PROCESSES; 090121* - Hydrocarbon Fuels- Chemical Synthesis- (1976-1989)

Citation Formats

Steinberg, M., and Fallon, P. Process for the production of ethylene and other hydrocarbons from coal. United States: N. p., 1984. Web.
Steinberg, M., & Fallon, P. Process for the production of ethylene and other hydrocarbons from coal. United States.
Steinberg, M., and Fallon, P. Wed . "Process for the production of ethylene and other hydrocarbons from coal". United States.
@article{osti_6000715,
title = {Process for the production of ethylene and other hydrocarbons from coal},
author = {Steinberg, M. and Fallon, P.},
abstractNote = {The subject invention comprises the steps of first reacting particulate coal with methane at a temperature in the approximate range of 500/sup 0/C to 1100/sup 0/C and at a partial pressure of methane of less than about 200 psig for a period of less than 10 seconds. More preferably, the method of the subject invention is carried out at a temperature of approximately 850/sup 0/C to 1000/sup 0/C and a pressure of 50 psig for a period of approximately 1.5 seconds. Surprisingly, it has been found that in the practice of the subject invention not only are commercially significant quantities of ethylene produced, namely yields in excess of 10% (percent carbon converted to product), along with economically significant quantities of-benzene and light oils, namely toluene and xylene, but also that there is little, if any, net consumption of methane in the reaction and possibly even a small net production. Since it is apparent that the carbonaceous solids or char remaining after the reaction is carried out may be burned to provide the necessary energy to carry out the process of the subject invention, it is apparent that the subject invention advantageously provides a method for the conversion of coal to economically significant quantities of ethylene, benzene and light oils while requiring only coal and, possibly, small amounts of make-up methane. Other objects and advantages of the subject invention will be apparent to those skilled in the art from a consideration of the attached drawings, the detailed description of the invention, and the experimental examples set forth below.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1984},
month = {2}
}