摘要:
A method of making a crystalline molecular sieve of MFS framework type, said method comprising the steps of (a) adding at least one source of ions of tetravalent element (Y), at least one source of ions of trivalent element (X), at least one hydroxide source (OH−), at least one structure-directing-agent (R), at least one seed source (Seed), and water (H2O) to form a mixture having the following mole composition (expressed in term of oxide): YO2:(n)X2O3:(x)OH−:(y)R:(z)H2O+(m)Seed wherein the m is in the range of from about 10 wtppm to about 2 wt. % (based on total weight of the synthesis mixture), the n is in the range of from about 0.005 to 0.05, the x is in the range of from about 0.01 to about 0.3, the y is in the range of from about 0.03 to about 2; and the z is in the range of from about 3 to about 30; and (b) treating said mixture under crystallization conditions to form said crystalline molecular sieve substantially free of non-MFS material, wherein said crystallization conditions comprise a temperature in the range of from about 150° C. to about 250° C., and crystallization time less than 100 hr, the weight hourly throughput is at least 0.001 hr−1.
摘要翻译:一种制备MFS框架型结晶分子筛的方法,所述方法包括以下步骤:(a)将至少一种四价元素(Y)的离子的至少一种源,至少一种三价元素(X)的离子源加入 至少一种氢氧化物源(OH-),至少一种结构导向剂(R),至少一种种子源(Seed)和水(H 2 O),以形成具有以下摩尔组成的混合物 ):YO 2:(n)X 2 O 3:(x)OH - :( y)R:(z)H 2 O +(m)其中m为约10重量ppm至约2重量% %(基于合成混合物的总重量),n在约0.005至0.05的范围内,x在约0.01至约0.3的范围内,y在约0.03至 约2; 并且z在约3至约30的范围内; 和(b)在结晶条件下处理所述混合物以形成基本上不含非MFS材料的所述结晶分子筛,其中所述结晶条件包括在约150℃至约250℃范围内的温度和结晶 时间小于100小时,重量小时产量至少为0.001小时-1。
摘要:
A process is disclosed for the highly selective skeletal isomerization of linear olefin-containing organic feeds to iso-olefins at high levels of feed conversion wherein linear olefins, e.g., n-butenes, are contacted with catalyst comprising ZSM-22 having a crystal size whose largest dimension is no greater than 0.5 micron. The process is carried out under isomerization conditions to produce iso-olefins of corresponding carbon number, e.g., isobutene. High overall iso-olefin yields thus can be obtained, even at relatively low temperatures.
摘要:
A process for hydrocracking 343.degree. C..sup.+ feedstock is disclosed. The process employs a catalyst which comprises a layered silicate, such as magadiite or kenyaite, which contains interspathic polymeric silica. The catalyst also contains at least one base metal, i.e., Cr, Mo, W, Fe, Co, and Ni.
摘要:
Hydrogenation catalysts for aromatic hydrogenation including an organosilica material support, which is a polymer comprising independent units of a monomer of Formula [Z1OZ2OSiCH2]3 (I), wherein each Z1 and Z2 independently represent a hydrogen atom, a C1-C4 alkyl group or a bond to a silicon atom of another monomer; and at least one catalyst metal are provided herein. Methods of making the hydrogenation catalysts and processes of using, e.g., aromatic hydrogenation, the hydrogenation catalyst are also provided herein.
摘要:
The present invention provides a process for producing a monoalkylated aromatic compound comprising the step of contacting an alkylatable aromatic compound with an alkylating agent in the presence of a catalyst composition under effective alkylation conditions, said catalyst composition comprising MCM-56 and a binder, such that the crystal/binder weight ratio in the catalyst composition is from above 20/80 to about 80/20.
摘要:
A porous, crystalline material is described having the framework structure of ZSM-12 and a composition involving the molar relationship: X2O3:(n)YO2 wherein X is a trivalent element, Y is a tetravalent element and n is less than 60. The material has an average crystal size of the material is less than 0.1 micron and a Diffusion Parameter for mesitylene of at least 1000×10−6 sec−1 when measured at a temperature of 100° C. and a mesitylene pressure of 2 torr.
摘要翻译:描述了具有ZSM-12的骨架结构和涉及摩尔关系的组成的多孔结晶材料:<?in-line-formula description =“In-line formula”end =“lead”?> X& 其中X(N)Y 2 N u> Y O 2 <?in-line-formula description =“In-line Formulas”end =“tail” 是三价元素,Y是四价元素,n小于60.材料的平均晶体尺寸小于0.1微米,均三甲苯的扩散参数为至少1000×10 -6 当在100℃的温度和2托的均三甲苯压力下测量时,
摘要:
A method for minimizing the loss of xylenes in an ethylbenzene conversion/isomerization process by adding toluene to the feedstock. The concentration of toluene in the feedstock is increased by co-feeding toluene or by recycling toluene separated from the ethylbenzene conversion reactor effluent. The increased toluene concentration reduces the loss of xylenes during the ethylbenzene conversion reaction and under preferred operating conditions increases the amount of xylenes in the product.
摘要:
There is provided a method for preparing alpha-olefin oligomers of superior lubricating properties by contacting an alpha-olefin feed under oligomerization conditions with a catalyst comprising an activated layered silicate containing silica and oxide of Group VIB metal, e.g., Cr, between its layers. The catalyst can be activated by exposure to an oxidation gas at high temperature followed by treatment with a reducing agent, e.g., CO.
摘要:
Diarylalkanes are prepared by alkylating an aromatic hydrocarbon with an aromatic alkylation agent in the presence of a synthetic porous crystalline material catalyst composition. The aromatic hydrocarbon can be, for example, benzene, toluene, naphthalene, etc. The aromatic alkylating agent can be an aromatic compound with a hydroxy group, such as phenol, or benzyl alcohol, or an aromatic halide, aldehyde, ether, or an aromatic olefin such as styrene.
摘要:
A crystalline molecular sieve of MFS framework type manufactured by the method disclosed herein. A hydrocarbon conversion process using the crystalline molecular sieve is disclosed.