Process for controlling reaction temperatures

Details Process for controlling reaction temperatures Process for controlling reaction temperatures

1997-11-17

1999-09-07

Griffin, Walter D.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Plural parallel stages of chemical conversion

208134, 208140, 208146, 208152, 208165, 208166, 208169, 208173, 422141, 422145, 422197, C10G 5106

Patent

active

059482400

ABSTRACT:
A process for contacting reactants with a particulate catalyst while indirectly contacting the reactants with a heat exchange medium amid simultaneous exchange of catalyst particles by an operation that sequentially restricts reactant flow while moving catalyst through reaction stacks in which the reactant flow has been restricted. The process permits a change out of catalyst in a channel type reactor arrangement that would normally restrict catalyst flow during operation. Moving catalyst through a heat exchange type reactor having reactant and heat exchange channels permits control of catalyst activity as well as temperatures.

REFERENCES:
patent: 3652231 (1972-03-01), Greenwood et al.
patent: 5525311 (1996-06-01), Girod et al.
patent: 5600053 (1997-02-01), Gidrod et al.

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