Moving-bed reactor startup process

Details Moving-bed reactor startup process Moving-bed reactor startup process

1977-01-21

1978-10-10

Crasanakis, George

Mineral oils: processes and products

Refining

Sulfur removal

208152, 208165, 208251H, C10G 2308

Patent

active

041195302

ABSTRACT:
A startup method for moving-bed reactors used in hydrocarbon conversion processes wherein the reactor is brought on-stream at full capacity while it contains less than a full loading of catalyst, and quantities of catalyst are intermittently added to the reactor while the hydrocarbons are being processed. Catalyst removal is then begun at a rate lower than the rate of catalyst addition and adjusted when the catalyst retention volume of the reactor becomes filled. The method is specifically adaptable to the hydrogenation of olefinic materials, the desulfurization of petroleum fractions and the production of liquid products from coal.

REFERENCES:
patent: 3067129 (1962-12-01), Danber et al.
patent: 3694351 (1972-09-01), White
patent: 3730880 (1973-05-01), Van der Toorn
patent: 3826737 (1974-07-01), Pegels et al.

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