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Title: High temperature desulfurization of synthesis gas

Abstract

This patent describes a continuous process for the production of desulfurized synthesis gas, fuel gas, or reducing gas comprising: (1) reacting a first portion of sulfur-containing heavy liquid hydrocarbonaceous fuel and/or sulfur-containing solid carbonaceous fuel containing about 0.2 to 8.0 wt. % sulfur by partial oxidation with controlled amounts of free-oxygen containing gas and temperature moderator in a first free-flow refractory lined reaction zone of a gas generator at an autogenous temperature in the range of about 1900F to 2900F and a pressure in the range of about 2 to 250 atmospheres so that an equilibrium oxygen concentration with a partial pressure which is less than about 10/sup -12/ atmospheres is provided in the gas phase in the first reaction zone and in downstream second reaction zone; and in the first reaction zone the O/C atomic ratio is in the range of about 0.3 to 1.1, the weight ratio of water to solid carbonaceous fuel plus liquid hydrocarbonaceous material, if any, is in the range of about 0.03 to 0.70, about 70 to 98 wt. % of the carbon in the sulfur-containing fuel is converted into carbon oxides, thereby producing a hot gas stream including a raw product gas mixturemore » comprising H/sub 2/, CO, CO/sub 2/, H/sub 2/S, COS at least one gas selected from the group consisting of H/sub 2/O, N/sub 2/, CH/sub 4/, and A and entrained material comprising particulate carbon, unreacted fuel if any, and molten slag; and the temperature is above the softening temperature of the ash in the fuel, and at least 90 wt % of the sulfur in the fuel in the first reaction zone is converted into sulfur-containing gas.« less

Inventors:
;
Publication Date:
OSTI Identifier:
6803844
Patent Number(s):
US 4776860
Assignee:
Texco Inc., White Plains, NY
Resource Type:
Patent
Resource Relation:
Patent File Date: Filed date 13 Oct 1987
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; 01 COAL, LIGNITE, AND PEAT; 03 NATURAL GAS; COAL; GASIFICATION; FUEL GAS; PRODUCTION; PETROLEUM; SYNTHESIS GAS; CALCIUM COMPOUNDS; CARBON OXIDES; DESULFURIZATION; FLY ASH; FUEL ADDITIVES; HYDROGEN PRODUCTION; PARTIAL OXIDATION PROCESSES; ADDITIVES; AEROSOL WASTES; ALKALINE EARTH METAL COMPOUNDS; ASHES; CARBON COMPOUNDS; CARBONACEOUS MATERIALS; CHALCOGENIDES; CHEMICAL REACTIONS; ENERGY SOURCES; FLUIDS; FOSSIL FUELS; FUELS; GAS FUELS; GASES; MATERIALS; OXIDES; OXYGEN COMPOUNDS; RESIDUES; THERMOCHEMICAL PROCESSES; WASTES; 020400* - Petroleum- Processing; 010404 - Coal, Lignite, & Peat- Gasification; 030300 - Natural Gas- Drilling, Production, & Processing

Citation Formats

Najjar, M S, and Suggitt, R M. High temperature desulfurization of synthesis gas. United States: N. p., 1988. Web.
Najjar, M S, & Suggitt, R M. High temperature desulfurization of synthesis gas. United States.
Najjar, M S, and Suggitt, R M. Tue . "High temperature desulfurization of synthesis gas". United States.
@article{osti_6803844,
title = {High temperature desulfurization of synthesis gas},
author = {Najjar, M S and Suggitt, R M},
abstractNote = {This patent describes a continuous process for the production of desulfurized synthesis gas, fuel gas, or reducing gas comprising: (1) reacting a first portion of sulfur-containing heavy liquid hydrocarbonaceous fuel and/or sulfur-containing solid carbonaceous fuel containing about 0.2 to 8.0 wt. % sulfur by partial oxidation with controlled amounts of free-oxygen containing gas and temperature moderator in a first free-flow refractory lined reaction zone of a gas generator at an autogenous temperature in the range of about 1900F to 2900F and a pressure in the range of about 2 to 250 atmospheres so that an equilibrium oxygen concentration with a partial pressure which is less than about 10/sup -12/ atmospheres is provided in the gas phase in the first reaction zone and in downstream second reaction zone; and in the first reaction zone the O/C atomic ratio is in the range of about 0.3 to 1.1, the weight ratio of water to solid carbonaceous fuel plus liquid hydrocarbonaceous material, if any, is in the range of about 0.03 to 0.70, about 70 to 98 wt. % of the carbon in the sulfur-containing fuel is converted into carbon oxides, thereby producing a hot gas stream including a raw product gas mixture comprising H/sub 2/, CO, CO/sub 2/, H/sub 2/S, COS at least one gas selected from the group consisting of H/sub 2/O, N/sub 2/, CH/sub 4/, and A and entrained material comprising particulate carbon, unreacted fuel if any, and molten slag; and the temperature is above the softening temperature of the ash in the fuel, and at least 90 wt % of the sulfur in the fuel in the first reaction zone is converted into sulfur-containing gas.},
doi = {},
url = {https://www.osti.gov/biblio/6803844}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1988},
month = {10}
}