초록 ▼

A reversibly deactivated, particulate catalyst in a slurry hydrocarbon synthesis slurry is rejuvenated by circulating the slurry from a slurry body through (i) a gas disengaging zone to remove gas bubbles from the slurry, (ii) a catalyst rejuvenation zone in which a catalyst rejuvenating gas contact

A reversibly deactivated, particulate catalyst in a slurry hydrocarbon synthesis slurry is rejuvenated by circulating the slurry from a slurry body through (i) a gas disengaging zone to remove gas bubbles from the slurry, (ii) a catalyst rejuvenation zone in which a catalyst rejuvenating gas contacts the catalyst in the slurry to rejuvenate it and form a rejuvenated catalyst slurry and, (iii) back into the slurry body. Removing at least a portion of the gas bubbles improves the rejuvenation process.

대표청구항 ▼

[ What is claimed is:] [1.] A slurry hydrocarbon synthesis process comprising passing a synthesis gas comprising a mixture of hydrogen and carbon monoxide into a slurry body comprising said slurry which comprises gas bubbles and a particulate hydrocarbon synthesis catalyst in a hydrocarbon slurry li

[ What is claimed is:] [1.] A slurry hydrocarbon synthesis process comprising passing a synthesis gas comprising a mixture of hydrogen and carbon monoxide into a slurry body comprising said slurry which comprises gas bubbles and a particulate hydrocarbon synthesis catalyst in a hydrocarbon slurry liquid, in which said hydrogen and carbon monoxide react at hydrocarbon synthesis conditions, in the presence of said catalyst to produce liquid and gaseous hydrocarbon synthesis products, including C.sub.5+ hydrocarbons, wherein said synthesis reaction reversibly deactivates said catalyst particles and wherein said slurry liquid comprises hydrocarbon products which are liquid at said synthesis conditions, said process further comprising rejuvenating said reversibly catalyst particles in-situ in said slurry by (i) passing a portion of said slurry containing said reversibly deactivated catalyst particles from said slurry body down through an upward opening, hollow gas disengaging zone immersed in said body, peripherally surrounding and located proximate the bottom or slurry entrance of a catalyst rejuvenation means which comprises a substantially vertical, hollow conduit open at the top and bottom and immersed in said slurry, the interior of which comprises a catalyst rejuvenation zone and with said open bottom and top respectively comprising a slurry entrance and exit, to disengage and remove at least a portion of said gas bubbles from said slurry to form a gas reduced slurry, (ii) passing said gas reduced slurry and a catalyst rejuvenating gas comprising up into and through said rejuvenation zone in which said hydrogen rejuvenates said catalyst and forms a rejuvenated catalyst slurry which passes out of the top of said rejuvenating zone, followed by (iii) passing said rejuvenated slurry back into said slurry body.