Abstract:
A composition may include a binder; a coalescing agent with the general formula of wherein Z is C1-C10, wherein X is —H and Y is ═O or X is ═O and Y is —H or —CH3, and wherein R1 and R2 are independently selectable and comprise a C1-C12 or derivative thereof; and a solvent. The composition may be used in products like a paint, a coating, an adhesive, an ink, a toner, a sealant, a stain, a glaze, a carpet backing, and a primer.
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。
Abstract:
Reduced sulfur gas species (e.g., H2S, COS and CS2) are removed from a gas stream by compositions wherein a zinc titanate ingredient is associated with a metal oxide-aluminate phase material in the same particle species. Nonlimiting examples of metal oxides comprising the compositions include magnesium oxide, zinc oxide, calcium oxide, nickel oxide, etc.
Abstract:
Processes are disclosed for removing sulfur, including cyclic and polycyclic organic sulfur components such as thiophenes and benzothiophenes, from a hydrocarbon feedstock including fuels and fuel components. The feedstock is contacted with a regenerable sorbent material capable of selectively adsorbing the sulfur compounds present in the hydrocarbon feedstock in the absence of a hydrodesulfurization catalyst. In one embodiment, the sorbent can be an active metal oxide sulfur sorbent in combination with a refractory inorganic oxide cracking catalyst support. In another embodiment, the sorbent can be a metal-substituted refractory inorganic oxide cracking catalyst wherein the metal is a metal which is capable in its oxide form, of adsorption of reduced sulfur compounds by conversion of the metal oxide to a metal sulfide. The processes are preferably carried out in a transport bed reactor.
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。
Abstract:
A composition may include a binder; a coalescing agent with the general formula of wherein Z is C1-C10, wherein X is —H and Y is ═O or X is ═O and Y is —H or —CH3, and wherein R1 and R2 are independently selectable and comprise a C1-C12 or derivative thereof; and a solvent. The composition may be used in products like a paint, a coating, an adhesive, an ink, a toner, a sealant, a stain, a glaze, a carpet backing, and a primer.
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。