Process for the manufacture of fuel gas

Patent · Tue Jul 08 04:00:00 EDT 1980

OSTI ID:5090767

Netzer, D

A process is described for the manufacture of fuel gas from coal which comprises sizing a coal feed to produce a first portion of larger particle sizes and a second portion of fine particles; gasifying (A) said firt portion of coal feed in a moving bed slagging gasifier; quenching the gas thus produced to form a water phase comprising water, phenolic compounds, ammonia, CO/sub 2/, HCN, and H/sub 2/S and a liquid organic phase comprising tar, oil and naphtha; separating and recovering said liquid organic phase; separating the water phase and mixing it with (A) said second protion of said coal feed to form a slurry; gasifying the coal in said slurry in an entrained bed gasifier; blending the gases generated by said gasifiers, and purifying the blend by removing CO/sub 2/, sulfur compounds and higher hydrocarbons, whereby fuel gas is produced and environmentally unsafe byproducts such as phenolic compounds are eliminated.

• Assignee: Fluor Corp Ltd The
• Patent Number(s): US 4211540
• OSTI ID: 5090767
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010402 -- Coal
Lignite
& Peat-- Purification & Upgrading
010404* -- Coal
Lignite
& Peat-- Gasification
090121 -- Hydrocarbon Fuels-- Chemical Synthesis-- (1976-1989)
10 SYNTHETIC FUELS
AROMATICS
COAL GASIFICATION
DISPERSIONS
FLUIDS
FUEL GAS
FUEL SLURRIES
FUELS
GAS FUELS
GASES
GASIFICATION
HIGH BTU GAS
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
LURGI SLAGGING PROCESS
MIXTURES
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PHENOLS
PRODUCTION
PURIFICATION
SLURRIES
SUSPENSIONS
SYNTHESIS GAS
TEXACO GASIFICATION PROCESS
THERMOCHEMICAL PROCESSES
WATER