Utilization of combustible components of a tail-gas in the manuf

Details Utilization of combustible components of a tail-gas in the manuf Utilization of combustible components of a tail-gas in the manuf

1979-07-16

1981-04-14

Vertiz, O. R.

Chemistry of inorganic compounds

Carbon or compound thereof

Elemental carbon

423449, C01B 3102, C09C 148

Patent

active

042619645

ABSTRACT:
The present invention provides an effective means of increasing the production rate of a carbon black process. A hydrocarbon fuel is burned in an insufficient amount of air to support complete combustion to produce a hot gas mixture which produces a tail-gas containing carbon black by the incomplete combustion of a hydrocarbon feedstock. This tail-gas is quenched, the carbon black is removed, and the tail-gas is dried. One or more of the combustible components are removed from the dried tail-gas and from 33 1/3% to 100% of the fuel is replaced with the combustible components so removed.
One method of removing carbon monoxide is by contacting the tail-gas with a liquid sorbent comprising cuprous aluminum halide; complexing substantially all of the carbon monoxide contained in the tail-gas; removing the complexed carbon monoxide from the tail-gas; contacting the complexed carbon monoxide with a stripping ligand that forms a more stable complex with sorbents than carbon monoxide, thereby exchanging the stripping ligand for carbon monoxide and recovering the carbon monoxide and a cuprous aluminum halide-stripping ligand containing complex. The contacting steps conducted under substantially anhydrous conditions in the substantial absence of oxygen.

REFERENCES:
patent: 2672402 (1954-03-01), Stokes
patent: 2796332 (1957-06-01), Pollock
patent: 3438732 (1969-04-01), Morel
patent: 3592865 (1971-07-01), Long et al.
patent: 3651159 (1972-03-01), Long et al.
patent: 3725103 (1973-04-01), Jordan et al.

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