公开(公告)号：US09381501B2

公开(公告)日：2016-07-05

申请号：US13984104

申请日：2012-02-07

申请人： Frank Daly ,  Laura Richard ,  Sreekala Rugmini

发明人： Frank Daly ,  Laura Richard ,  Sreekala Rugmini

IPC分类号： B01J21/00 ,  B01J21/04 ,  B01J23/00 ,  B01J23/02 ,  B01J23/89 ,  B01J21/06 ,  B01J23/75 ,  B01J23/889 ,  B01J35/00 ,  B01J37/02 ,  C10G2/00 ,  C10G3/00 ,  B01J37/16 ,  B01J35/02 ,  B01J35/10

CPC分类号： C10G2/332 ,  B01J21/063 ,  B01J21/08 ,  B01J23/005 ,  B01J23/75 ,  B01J23/8896 ,  B01J23/8913 ,  B01J23/8986 ,  B01J35/002 ,  B01J35/006 ,  B01J35/023 ,  B01J35/1042 ,  B01J35/1061 ,  B01J37/0201 ,  B01J37/0205 ,  B01J37/16 ,  C10G2/333 ,  C10G2/334 ,  C10G3/45 ,  C10G2300/703 ,  Y02P30/20

摘要： The invention relates to improvements in the design of Fischer-Tropsch catalysts comprising a support and cobalt on the support. A first aspect is the modification of the silica support with at least 11 wt % titania to prevent the formation of cobalt silicates, thereby limiting the deactivation resulting from the silicate formation. A second aspect is the provision of C03O4 particles highly dispersed on the catalyst support with an average particle diameter of the cobalt oxide particle of less than 12 nm in order to improve catalytic activity and selectivity. A third aspect is the deposition of the catalyst precursor on the support by contact with a solution or suspension comprising the catalyst metal precursors and a carboxylic acid, preferably an alpha-hydroxy carboxylic acid in order to minimize the fracturing and fragmentation of the catalyst precursor during the following steps of drying and calcining, thereby preventing the formation of smaller catalyst particles, which should be removed by screening in order to limit pressure drop in the reactor.

摘要翻译： 本发明涉及在载体上包含载体和钴的费 - 托催化剂设计的改进。 第一方面是用至少11重量％的二氧化钛修饰二氧化硅载体以防止形成硅酸钴，从而限制由硅酸盐形成引起的失活。 第二方面是为了提高催化活性和选择性，提供高度分散在催化剂载体上的氧化钴颗粒的平均粒径小于12nm的C03O4颗粒。 第三方面是通过与包含催化剂金属前体和羧酸（优选α-羟基羧酸）的溶液或悬浮液的接触将催化剂前体沉积在载体上，以便最小化催化剂前体的断裂和断裂 干燥和煅烧的以下步骤，从而防止形成较小的催化剂颗粒，其应通过筛选除去以限制反应器中的压降。

公开(公告)号：US20140088206A1

公开(公告)日：2014-03-27

申请号：US13984104

申请日：2012-02-07

申请人： Frank Daly ,  Laura Richard ,  Sreekala Rugmini

发明人： Frank Daly ,  Laura Richard ,  Sreekala Rugmini

IPC分类号： B01J23/89 ,  C10G3/00

CPC分类号： C10G2/332 ,  B01J21/063 ,  B01J21/08 ,  B01J23/005 ,  B01J23/75 ,  B01J23/8896 ,  B01J23/8913 ,  B01J23/8986 ,  B01J35/002 ,  B01J35/006 ,  B01J35/023 ,  B01J35/1042 ,  B01J35/1061 ,  B01J37/0201 ,  B01J37/0205 ,  B01J37/16 ,  C10G2/333 ,  C10G2/334 ,  C10G3/45 ,  C10G2300/703 ,  Y02P30/20

摘要： The invention relates to improvements in the design of Fischer-Tropsch catalysts comprising a support and cobalt on the support. A first aspect is the modification of the silica support with at least 11 wt % titania to prevent the formation of cobalt silicates, thereby limiting the deactivation resulting from the silicate formation. A second aspect is the provision of C03O4 particles highly dispersed on the catalyst support with an average particle diameter of the cobalt oxide particle of less than 12 nm in order to improve catalytic activity and selectivity. A third aspect is the deposition of the catalyst precursor on the support by contact with a solution or suspension comprising the catalyst metal precursors and a carboxylic acid, preferably an alpha-hydroxy carboxylic acid in order to minimize the fracturing and fragmentation of the catalyst precursor during the following steps of drying and calcining, thereby preventing the formation of smaller catalyst particles, which should be removed by screening in order to limit pressure drop in the reactor.

摘要翻译： 本发明涉及在载体上包含载体和钴的费 - 托催化剂设计的改进。 第一方面是用至少11重量％的二氧化钛改性二氧化硅载体以防止形成硅酸钴，从而限制由硅酸盐形成引起的失活。 第二方面是为了提高催化活性和选择性，提供高度分散在催化剂载体上的氧化钴颗粒的平均粒径小于12nm的C03O4颗粒。 第三方面是通过与包含催化剂金属前体和羧酸（优选α-羟基羧酸）的溶液或悬浮液的接触将催化剂前体沉积在载体上，以便最小化催化剂前体的断裂和断裂 干燥和煅烧的以下步骤，从而防止形成较小的催化剂颗粒，其应通过筛选除去以限制反应器中的压降。