公开(公告)号：EP2352587A2

公开(公告)日：2011-08-10

申请号：EP09828131.4

申请日：2009-11-18

申请人： Rentech, Inc.

发明人： DEMIREL, Belma ,  BENHAM, Charles B. ,  FRAENKEL, Dan ,  BLEY, Richard ,  TAYLOR, Jesse, W. ,  REJAI, Bahman ,  ROLFE, Sara L. ,  WRIGHT, Harold, A.

IPC分类号： B01J23/72 ,  B01J37/08 ,  B01J15/00

CPC分类号： B01J37/18 ,  B01J21/08 ,  B01J23/745 ,  B01J23/78 ,  B01J37/03 ,  C10G2/332 ,  C10G2300/4006 ,  C10G2300/703

摘要： A method of activating an iron Fischer-Tropsch catalyst by introducing an inert gas into a reactor comprising a slurry of the catalyst at a first temperature, increasing the reactor temperature from the first temperature to a second temperature at a first ramp rate, wherein the second temperature is in the range of from about 150°C to 250°C, introducing synthesis gas having a ratio of H2:CO to the reactor at a space velocity, and increasing the reactor temperature from the second temperature to a third temperature at a second ramp rate, wherein the third temperature is in the range of from about 270°C to 300°C. The iron Fischer-Tropsch catalyst may be a precipitated unsupported iron catalyst, production of which is also provided.

公开(公告)号：EP2192981A2

公开(公告)日：2010-06-09

申请号：EP08798813.5

申请日：2008-08-27

申请人： Rentech, Inc.

发明人： DEMIREL, Belma ,  ROLFE, Sara, L. ,  WRIGHT, Harold, A. ,  BENHAM, Charles, B. ,  FRAENKEL, Dan ,  BLEY, Richard, A. ,  TAYLOR, Jesse, W.

IPC分类号： B01J23/78 ,  C07C27/06

CPC分类号： B01J23/78 ,  B01J21/005 ,  B01J21/08 ,  B01J37/03 ,  C10G2/331 ,  C10G2300/70

摘要： A method of strengthening a precipitated unsupported iron catalyst by: preparing a precipitated unsupported iron catalyst containing copper and potassium; adding a solution comprising a structural promoter to the previously prepared catalyst; drying the mixture; and calcining the dried catalyst.