摘要:
A crystalline material has a DDR framework type and, in its calcined, anhydrous form, has a composition involving the molar relationship: (n)X2O3:YO2, wherein X is a trivalent element, Y is a tetravalent element and n is from 0 to less than 0.01 and wherein the crystals of said material have an average diameter less than or equal to 2 microns. The material is synthesized in the presence of an N-ethyltropanium compound as directing agent.
摘要翻译:结晶材料具有DDR框架型,并且以其煅烧的无水形式具有涉及摩尔关系的组成:<?in-line-formula description =“In-line formula”end =“lead”?>(n) X 2 O 3:YO 2,<β在线式描述=“在线式”末端=“尾”→其中X为三价元素,Y为四价元素,n为0至小于0.01,其中 所述材料的晶体具有小于或等于2微米的平均直径。 该物质在N-乙基anium化合物作为引导剂的存在下合成。
摘要:
A method for hydrodesulfurizing FCC naphtha is described. More particularly, a Co/Mo metal hydrogenation component is loaded on a silica or modified silica support in the presence of organic ligand and sulfided to produce a catalyst which is then used for hydrodesulfurizing FCC naphtha. The silica support has a defined pore size distribution which minimizes olefin saturation.
摘要:
This invention relates to a catalyst and method for hydrodesulfurizing naphtha. More particularly, a Co/Mo metal hydrogenation component is loaded on a high temperature alumina support in the presence of a dispersion aid to produce a catalyst that is then used for hydrodesulrurizing naphtha. The high temperature alumina support has a defined surface area that minimizes olefin saturation.
摘要:
Catalysts for dewaxing of hydrocarbon feeds, particularly feeds with elevated sulfur and nitrogen levels, are provided. The dewaxing catalysts include at least two zeolites, including a zeolite with a low silica to alumina ratio. The catalysts may be combined with a low surface binder, or alternatively the catalysts as formulated may have a high ratio of zeolite surface area to external surface area.
摘要:
Catalysts for dewaxing of hydrocarbon feeds, particularly feeds with elevated sulfur and nitrogen levels, are provided. The dewaxing catalysts include a zeolite with a low silica to alumina ratio combined with a low surface binder, or alternatively the formulated catalyst has a high ratio of zeolite surface area to external surface area.