Hydrotreating process with ammonia injection to reaction zone ef

Details Hydrotreating process with ammonia injection to reaction zone ef Hydrotreating process with ammonia injection to reaction zone ef

1981-12-21

1983-08-30

Gantz, Delbert E.

Mineral oils: processes and products

Refining

Sulfur removal

208236, C10G 2902

Patent

active

044015615

ABSTRACT:
A hydrocarbon conversion process highly useful in the hydrotreating of black oils or other high sulfur hydrocarbonaceous compounds which require both desulfurization and denitrification is disclosed. An ammonia source, which is preferably a liquid-phase aqueous stream, is admixed with the reaction zone effluent stream upstream of the product separator. This increases the ammonia present in an aqueous phase which is separated from the reaction zone effluent stream and thereby allows the aqueous phase to contain an increased amount of hydrogen sulfide. The inventive concept has advantages such as lowering the hydrogen sulfide concentration in the hydrogen-rich gas recovered from the reaction zone effluent stream and which is recycled to the reaction zone.

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Industrial Engineering Chemistry, Prod. Res. Dev., vol. 14, No. 2, 1975, pp. 74-83, by N. Choudhary et al., entitled "Hydrocracking: A Review".
Chemical Engineering, Mar. 22, 1971, pp. 67-69, by R. J. Annessen and G. D. Gould, entitled "Sour-Water Processing Turns Problem Into Payout".

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