Temperature control in draft tubes for catalyst rejuvenation

Details Temperature control in draft tubes for catalyst rejuvenation Temperature control in draft tubes for catalyst rejuvenation

B - Operations, Transporting

01

J

252/1.D, 260/678

B01J 38/10 (2006.01) C07C 1/04 (2006.01)

Patent

CA 2150560

Catalyst in a slurry phase reactor is rejuvenated in said reactor using a substantially vertical draft tube fully immersed in the slurry which utilizes a rejuvenating gas injected substantially near the bottom of the substantially vertical draft tube whereby catalyst near the bottom of the slurry phase rector is drawn up the draft tube and discharged from the top of the draft tube near the top of the slurry phase in said reactor, control over the rejuvenation temperature in the substantially vertical draft tube being achieved by means of insulating the draft tube and/or fitting the draft tube with heating or cooling means.

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