公开(公告)号：US5928980A

公开(公告)日：1999-07-27

申请号：US795669

申请日：1997-02-06

Applicant: Santosh Gangwal ,  Kandaswamy Jothimurugesan

Inventor： Santosh Gangwal ,  Kandaswamy Jothimurugesan

IPC: B01J20/02 ,  B01J20/06 ,  B01J20/32 ,  B01J23/22 ,  B01J23/755 ,  B01J23/94 ,  C10G2/00 ,  C10G49/02 ,  C10K1/32 ,  C10K1/34 ,  B01J20/34

CPC classification number: C10G2/33 ,  B01J20/02 ,  B01J20/06 ,  B01J20/16 ,  B01J20/18 ,  B01J20/28057 ,  B01J20/3078 ,  B01J20/3204 ,  B01J20/3236 ,  B01J20/3433 ,  B01J20/3458 ,  B01J20/3483 ,  B01J23/22 ,  B01J23/755 ,  B01J23/94 ,  C10G49/02 ,  C10K1/32 ,  C10K1/34 ,  B01J2220/42 ,  Y02P20/584

Abstract: A heavy metal poisoned, spent FCC catalyst is treated by chemically impregnating the poisoned catalyst with a new catalytic metal or metal salt to provide an attrition resistant catalyst or sorbent for a different catalytic or absorption processes, such as catalysts for Fischer-Tropsh Synthesis, and sorbents for removal of sulfur gasses from fuel gases and flue-gases. The heavy metal contaminated FCC catalyst is directly used as a support for preparing catalysts having new catalytic properties and sorbents having new sorbent properties, without removing or "passivating" the heavy metals on the spent FCC catalyst as an intermediate step.

Abstract translation: 重金属中毒，废FCC催化剂通过用新的催化金属或金属盐化学浸渍中毒的催化剂来处理，以提供用于不同催化或吸收方法的耐磨催化剂或吸附剂，例如用于费 - 托罗合成的催化剂，和 用于从燃料气体和烟道气中去除硫气的吸附剂。 重金属污染的FCC催化剂直接用作制备具有新吸附剂性能的催化剂的载体和具有新的吸附剂性质的吸附剂，而不用去除或“钝化”废催化剂催化剂上的重金属作为中间步骤。

公开(公告)号：US20080022852A1

公开(公告)日：2008-01-31

申请号：US11771364

申请日：2007-06-29

Applicant: Santosh Gangwal ,  Brian Turk ,  Raghubir Gupta

Inventor： Santosh Gangwal ,  Brian Turk ,  Raghubir Gupta

IPC: B01J20/06 ,  B01D53/14

CPC classification number: B01J20/28011 ,  B01D53/02 ,  B01D53/08 ,  B01D53/10 ,  B01D53/52 ,  B01D2253/112 ,  B01D2253/304 ,  B01D2253/306 ,  B01D2253/311 ,  B01D2257/304 ,  B01D2257/308 ,  B01D2259/4009 ,  B01J20/0244 ,  B01J20/06 ,  B01J20/08 ,  B01J20/28004 ,  B01J20/28019 ,  B01J20/30 ,  B01J20/3078 ,  B01J20/3085 ,  B01J2220/42 ,  B01J2220/58 ,  B82Y30/00 ,  C01G9/00 ,  C01G9/02 ,  C01P2004/64 ,  C01P2006/10 ,  C01P2006/12 ,  C01P2006/14 ,  Y10S502/504 ,  Y10S502/514 ,  Y10S502/517

Abstract: The disclosure relates to zinc oxide-based sorbents, and processes for preparing and using them. The sorbents are preferably used to remove one or more reduced sulfur species from gas streams. The sorbents comprise an active zinc component, optionally in combination with one or more promoter components and/or one or more substantially inert components. The active zinc component is a two phase material, consisting essentially of a zinc oxide (ZnO) phase and a zinc aluminate (ZnAl2O4) phase. Each of the two phases is characterized by a relatively small crystallite size of typically less than about 500 Angstroms. Preferably the sorbents are prepared by converting a precursor mixture, comprising a precipitated zinc oxide precursor and a precipitated aluminum oxide precursor, to the two-phase, active zinc oxide containing component.

Abstract translation: 本公开涉及基于氧化锌的吸附剂，以及其制备和使用它们的方法。 吸附剂优选用于从气流中除去一种或多种还原的硫物质。 吸附剂包含活性锌组分，任选地与一种或多种促进剂组分和/或一种或多种基本上惰性的组分组合。 活性锌组分是基本上由氧化锌（ZnO）相和铝酸锌（ZnAl 2 O 4 O 4）相组成的两相材料。 两相中的每一个的特征在于相对较小的微晶尺寸通常小于约500埃。 优选地，通过将​​包含沉淀的氧化锌前体和沉淀的氧化铝前体的前体混合物转化成两相含活性氧化锌的组分来制备吸附剂。

公开(公告)号：US20050070430A1

公开(公告)日：2005-03-31

申请号：US10670206

申请日：2003-09-26

Applicant: Santosh Gangwal ,  Brian Turk ,  Raghubir Gupta

Inventor： Santosh Gangwal ,  Brian Turk ,  Raghubir Gupta

IPC: B01J20/02 ,  B01J20/06

CPC classification number: B01J20/28011 ,  B01J20/06 ,  B01J20/08 ,  B01J20/28004 ,  B01J20/28019 ,  B01J2220/42 ,  Y10S502/504 ,  Y10S502/514 ,  Y10S502/517

Abstract: The disclosure relates to zinc oxide-based sorbents, and processes for preparing and using them. The sorbents are preferably used to remove one or more reduced sulfur species from gas streams. The sorbents comprise an active zinc component, optionally in combination with one or more promoter components and/or one or more substantially inert components. The active zinc component is a two phase material, consisting essentially of a zinc oxide (ZnO) phase and a zinc aluminate (ZnAl2O4) phase. Each of the two phases is characterized by a relatively small crystallite size of typically less than about 500 Angstroms. Preferably the sorbents are prepared by converting a precursor mixture, comprising a precipitated zinc oxide precursor and a precipitated aluminum oxide precursor, to the two-phase, active zinc oxide containing component.

Abstract translation: 本公开涉及基于氧化锌的吸附剂，以及其制备和使用它们的方法。 吸附剂优选用于从气流中除去一种或多种还原硫物质。 吸附剂包含活性锌组分，任选地与一种或多种促进剂组分和/或一种或多种基本上惰性的组分组合。 活性锌组分是两相材料，主要由氧化锌（ZnO）相和铝酸锌（ZnAl 2 O 4）相组成。 两相中的每一个的特征在于相对较小的微晶尺寸通常小于约500埃。 优选地，通过将​​包含沉淀的氧化锌前体和沉淀的氧化铝前体的前体混合物转化成两相含活性氧化锌的组分来制备吸附剂。

公开(公告)号：US20080026939A1

公开(公告)日：2008-01-31

申请号：US11771396

申请日：2007-06-29

Applicant: Santosh Gangwal ,  Brian Turk ,  Raghubir Gupta

Inventor： Santosh Gangwal ,  Brian Turk ,  Raghubir Gupta

IPC: B01J20/06

CPC classification number: B01J20/28011 ,  B01D53/02 ,  B01D53/08 ,  B01D53/10 ,  B01D53/52 ,  B01D2253/112 ,  B01D2253/304 ,  B01D2253/306 ,  B01D2253/311 ,  B01D2257/304 ,  B01D2257/308 ,  B01D2259/4009 ,  B01J20/0244 ,  B01J20/06 ,  B01J20/08 ,  B01J20/28004 ,  B01J20/28019 ,  B01J20/30 ,  B01J20/3078 ,  B01J20/3085 ,  B01J2220/42 ,  B01J2220/58 ,  B82Y30/00 ,  C01G9/00 ,  C01G9/02 ,  C01P2004/64 ,  C01P2006/10 ,  C01P2006/12 ,  C01P2006/14 ,  Y10S502/504 ,  Y10S502/514 ,  Y10S502/517

Abstract: The disclosure relates to zinc oxide-based sorbents, and processes for preparing and using them. The sorbents are preferably used to remove one or more reduced sulfur species from gas streams. The sorbents comprise an active zinc component, optionally in combination with one or more promoter components and/or one or more substantially inert components. The active zinc component is a two phase material, consisting essentially of a zinc oxide (ZnO) phase and a zinc aluminate (ZnAl2O4) phase. Each of the two phases is characterized by a relatively small crystallite size of typically less than about 500 Angstroms. Preferably the sorbents are prepared by converting a precursor mixture, comprising a precipitated zinc oxide precursor and a precipitated aluminum oxide precursor, to the two-phase, active zinc oxide containing component.

Abstract translation: 本公开涉及基于氧化锌的吸附剂，以及其制备和使用它们的方法。 吸附剂优选用于从气流中除去一种或多种还原硫物质。 吸附剂包含活性锌组分，任选地与一种或多种促进剂组分和/或一种或多种基本上惰性的组分组合。 活性锌组分是基本上由氧化锌（ZnO）相和铝酸锌（ZnAl 2 O 4 O 4）相组成的两相材料。 两相中的每一个的特征在于相对较小的微晶尺寸通常小于约500埃。 优选地，通过将​​包含沉淀的氧化锌前体和沉淀的氧化铝前体的前体混合物转化成两相含活性氧化锌的组分来制备吸附剂。