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.

公开(公告)号：EP2525908A2

公开(公告)日：2012-11-28

申请号：EP11734983.7

申请日：2011-01-05

申请人： Rentech, Inc.

发明人： WRIGHT, Harold, A. ,  DEMIREL, Belma ,  MOHEDAS, Sergio ,  REJAI, Bahman ,  HUANG, Ray, J. ,  FERDOUS, Deena ,  TAYLOR, Jesse, W. ,  DUVENHAGE, Dawid, J. ,  ROLFE, Sara, L.

IPC分类号： B01J37/02 ,  B01J35/02 ,  B01J23/745 ,  B01J37/16 ,  B01J8/18

CPC分类号： B01J8/006 ,  B01J8/18 ,  B01J8/1809 ,  B01J23/745 ,  B01J33/00 ,  B01J35/023 ,  B01J37/0045 ,  B01J37/18 ,  C10G2/32 ,  C10G2/33 ,  C10G2/332 ,  C10G2300/703

摘要： A method of preparing a spray dried catalyst by combining spray dried catalyst particles with wax so the spray dried catalyst particles are coated with wax, yielding wax coated catalyst particles, and shaping the wax coated catalyst to provide shaped wax coated catalyst. A method of activating Fischer-Tropsch catalyst particles containing oxides by contacting the catalyst particles with a reducing gas in an activation vessel to produce an activated catalyst, wherein contacting is performed in the absence of a liquid medium under activation conditions. A system for activating a Fischer-Tropsch catalyst containing an activation reactor configured to introduce an activation gas to a fixed or fluidized bed of the Fischer-Tropsch catalyst in the absence of a liquid medium and at least one separation device configured to separate a gas stream comprising entrained catalyst fines having an average particle size below a desired cutoff size from the activation reactor.

公开(公告)号：EP2337635A2

公开(公告)日：2011-06-29

申请号：EP09821093.3

申请日：2009-10-13

申请人： Rentech, Inc.

发明人： MOHEDAS, Sergio ,  WRIGHT, Harold, A.

IPC分类号： B03C1/00 ,  B01J8/00 ,  B01J19/00

CPC分类号： B03C1/02 ,  B01J8/228 ,  B03C1/032 ,  B03C1/286 ,  B03C1/30 ,  B03C2201/18 ,  B03C2201/20

摘要： A system for separating liquids from solids comprising an immobilization unit comprising an immobilization vessel containing a bed of magnetizable material and a magnet configured to produce a magnetic field within the immobilization vessel, wherein the immobilization vessel further comprises an immobilization vessel outlet and an immobilization vessel inlet for a fluid comprising liquid and metal-containing particles. A method for separating solid particles from liquid by introducing a fluid comprising liquid and a first concentration of solid particles into an immobilization unit comprising an immobilization vessel and at least one magnet configured to produce high density magnetic flux lines within the immobilization vessel and/or a high field gradient at or near the surface of the magnetizable material when powered, wherein the immobilization vessel contains therein a bed of magnetizable material; and removing from the immobilization unit a product having reduced particle concentration.

公开(公告)号：EP2417226A2

公开(公告)日：2012-02-15

申请号：EP10762299.5

申请日：2010-04-06

申请人： Rentech, Inc.

发明人： CARRYER, Benjamin, H. ,  ELROD, Eric, R. ,  IBSEN, Mark, D. ,  WRIGHT, Harold, A. ,  JOHNSON, Brian, K.

IPC分类号： C10J1/24 ,  C10J1/00 ,  C10L3/00

CPC分类号： C01B3/36 ,  B01J23/745 ,  C01B13/0259 ,  C01B2203/0261 ,  C01B2203/062 ,  C01B2203/0894 ,  C01B2203/1241 ,  C01B2203/1247 ,  C10G2/332 ,  C10G2300/1011 ,  C10J2300/0909 ,  C10J2300/0916 ,  C10J2300/0959 ,  C10J2300/1618 ,  C10J2300/1659 ,  C10J2300/1884 ,  Y02P20/145 ,  Y02P20/52 ,  Y02P30/20

摘要： A thermal conversion process comprising: pyrolizing or gasifying a carbonaceous feedstock to produce a first synthesis gas having a first H2:CO ratio of less than a minimum value or greater than a maximum value; providing enriched oxygen; and subjecting the first synthesis gas to partial oxidation in the presence of at least a portion of the enriched oxygen to produce a conditioned synthesis gas having a desired ratio of H2:CO in the range of from the minimum value to the maximum value. A method of producing FT product liquids by providing a conditioned synthesis gas according to the process and producing FT product liquids by subjecting the conditioned synthesis gas to FT reaction under FT operating conditions. A system for carrying out the methods is also provided.

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：EP2282834A2

公开(公告)日：2011-02-16

申请号：EP09759112.7

申请日：2009-05-29

申请人： Rentech, Inc.

发明人： NIKRAD, Pandurang, V. ,  TAYLOR, Jesse, W. ,  BLEY, Richard, A. ,  DUBUISSON, Danny, M. ,  ROLFE, Sara, L. ,  DEMIREL, Belma ,  DUVENHAGE, Dawid, J. ,  WRIGHT, Harold, A.

IPC分类号： B01J27/25 ,  B01J23/745 ,  B01J37/03 ,  C01G49/00 ,  C01B21/50

CPC分类号： B01J35/002 ,  B01J23/002 ,  B01J23/745 ,  B01J23/78 ,  B01J37/03 ,  B01J37/10 ,  B01J2523/00 ,  C07C1/044 ,  C07C1/0445 ,  C10G2/332 ,  B01J2523/13 ,  B01J2523/17 ,  B01J2523/41 ,  B01J2523/842

摘要： A method of producing stable ferrous nitrate solution by dissolving iron in nitric acid to form a ferrous nitrate solution and maintaining the solution at a first temperature for a first time period, whereby the Fe(II) content of the ferrous nitrate solution changes by less than about 2% over a second time period. A method of producing stable Fe(II)/Fe(III) nitrate solution comprising ferrous nitrate and ferric nitrate and having a desired ratio of ferrous iron to ferric iron, including obtaining a stable ferrous nitrate solution; dissolving iron in nitric acid to form a ferric nitrate solution; maintaining the ferric nitrate solution at a second temperature for a third time period; and combining amounts of stable ferrous nitrate solution and ferric nitrate solution to produce the stable Fe(II)/Fe(III) nitrate solution. A method of preparing an iron catalyst is also described.

摘要翻译： 一种通过将铁溶解在硝酸中以形成硝酸亚铁溶液并将该溶液保持在第一温度第一时间段而产生稳定的硝酸亚铁溶液的方法，由此硝酸亚铁溶液中的Fe（II）含量变化小于 在第二时间段约2％。 一种生产包含硝酸亚铁和硝酸铁的稳定的硝酸铁（II）/硝酸铁（III）溶液的方法，该溶液具有所需的二价铁与三价铁的比例，包括获得稳定的硝酸亚铁溶液; 将铁溶解在硝酸中以形成硝酸铁溶液; 将所述硝酸铁溶液在第二温度下保持第三时间段; 并结合一定量的稳定的硝酸亚铁溶液和硝酸铁溶液以产生稳定的Fe（II）/ Fe（III）硝酸盐溶液。 还描述了制备铁催化剂的方法。

公开(公告)号：EP2282833A2

公开(公告)日：2011-02-16

申请号：EP09759113.5

申请日：2009-05-29

申请人： Rentech, Inc.

发明人： DEMIREL, Belma ,  TAYLOR, Jesse, W. ,  NIKRAD, Pandurang, V. ,  ROLFE, Sara, L. ,  DUVENHAGE, Dawid, J. ,  WRIGHT, Harold, A.

IPC分类号： B01J23/745 ,  B01J37/03 ,  B01J27/25

CPC分类号： B01J37/03 ,  B01J23/002 ,  B01J23/745 ,  B01J23/78 ,  B01J35/002 ,  B01J35/0033 ,  B01J35/1014 ,  B01J35/1019 ,  B01J35/1038 ,  B01J35/1042 ,  B01J35/1061 ,  B01J37/0045 ,  B01J2523/00 ,  C10G2/332 ,  B01J2523/13 ,  B01J2523/17 ,  B01J2523/41 ,  B01J2523/847

摘要： A method of producing a catalyst precursor comprising iron phases by co-feeding a ferrous nitrate solution and a precipitation agent into a ferric nitrate solution to produce a precipitation solution having a desired ferrous:ferric nitrate ratio and from which catalyst precursor precipitates; co-feeding a ferric nitrate solution and a precipitation agent into a ferrous nitrate solution to produce a precipitation solution having a desired ferrous:ferric nitrate ratio and from which catalyst precursor precipitates; or precipitating a ferrous precipitate from a ferrous nitrate solution by contacting the ferrous nitrate solution with a first precipitation agent; precipitating a ferric precipitate from ferric nitrate solution by contacting the ferric nitrate solution with a second precipitation agent and combining the ferrous and ferric precipitates to form the catalyst precursor, wherein the ratio of ferrous:ferric precipitates is a desired ratio.