Production of low sulfur fuels from coal

Details Production of low sulfur fuels from coal Production of low sulfur fuels from coal

1977-07-08

1978-10-03

Dees, Carl

Fuel and related compositions

Liquid fuels

Aluminum or heavy metal, other than lead, containing

48197R, 48202, 201 17, 208 8, C10L 910, C10G 100, C10B 5700

Patent

active

041182014

ABSTRACT:
A general method for producing low-sulfur gas and solid fuel is disclosed. Such method involves partial gasification of coal, using steam and an oxygen-containing gas, to produce low-B.t.u. fuel which can be used as a feedstock for power plants and industrial boilers. Also disclosed is a method for simultaneously producing low-sulfur gas, liquid, and solid fuels from coal in a single reaction vessel using a multi-stage fluidized gasification and desulfurization system. Synthesis gas produced in a first stage gas generator by reaction of steam, an oxygen-containing gas, and auxiliary carbonaceous fuel, is reacted with high-sulfur coal in a second stage desulfurization unit forming a solid phase consisting of low-sulfur fuel and a fluid phase consisting of sulfur-containing gaseous and liquid fuels. After disengagement of solid and fluid phases present in the second stage reaction zone, a solid fuel of reduced sulfur content is recovered.

REFERENCES:
patent: 3817723 (1974-06-01), Donath
patent: 3909212 (1975-09-01), Schroeder
patent: 3912465 (1975-10-01), Kunii et al.
patent: 3945809 (1976-03-01), Donath
patent: 3954596 (1976-05-01), Schroeder

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