Process for minimizing vaporizable catalyst requirements for coa

Details Process for minimizing vaporizable catalyst requirements for coa Process for minimizing vaporizable catalyst requirements for coa

1977-01-03

1979-01-16

Gantz, Delbert E.

Mineral oils: processes and products

Products and compositions

Lubricating oils

C10G 108

Patent

active

041348222

ABSTRACT:
A process for reducing the amount of catalyst required for coal hydrogenation-liquefaction reactions involving dry fed, short-residence coal reaction systems. Coal particles are mixed with dry catalyst material having a vapor pressure of 1 to 1000 mm Hg at reaction conditions. Catalysts having such high vapor pressure have demonstrated greatly improved ability to establish the required intimate contact for efficient catalysis when dry mixed and enable significant reduction of amounts of catalyst material required. In systems utilizing ZnCl.sub.2 as the catalyst material, reductions in percent weight concentration to the range of 1 to 2% are accomplished.
The invention disclosed herein was developed in part under contract funding provided by the Energy Research and Development Administration of the United States Government.

REFERENCES:
patent: 3355376 (1967-11-01), Gorin et al.
patent: 3668109 (1972-06-01), Kiovsky et al.
patent: 3764515 (1973-10-01), Kiovsky
patent: 3775286 (1973-11-01), Mukherjee et al.
Anderson, Wood, & Wiser "Clean Energy from Coal" pp. 318-321, Society of Mining Engrs, Aime Transactions vol. 260, Dec., 1976.
Wood, Wiser "Coal Liquefaction in Coiled Tube Reactors" Ind. Eng. Chem. Process Devel., vol. 15, No. 1, 1976, pp. 144-149.

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