SLURRY HYDROCARBON SYNTHESIS WITH FRESH CATALYST ACTIVITY INCREASE DURING HYDROCARBON PRODUCTION

摘要

Fresh catalyst particles are added to a slurry hydrocarbon synthesis reactor and their activity increased by contact with hydrogen in-situ in the slurry in a catalyst activity increasing means, while the reactor is producing hydrocarbons. The means may be a simple, vertically oriented and hollow tube , open at the top and bottom, into which slurry and a hydrogen treat gas are passed. The treat gas acts a a lift which provides slurry circulation into a nd out of the means and back into the slurry body, while increasing the activit y of the catalyst particles. During the activity increase of the fresh catalys t, partially and reversibly activated catalyst particles are rejuvenated. The activity increasing means may be inside the reactor and at least partially immersed in the slurry or external of the reactor, or both.