摘要:
The invention relates to a process for producing an alkylbenzene from benzene and an aliphatic mono-olefin in the presence of a catalyst based on a dealuminized Y zeolite with a molar ratio SiO.sub.2 /Al.sub.2 O.sub.3 ranging from 8 to 70, the product of this reaction being afterwards fractionated into a first fraction containing non converted benzene and a mono-alkylbenzene and a second fraction containing a poly-alkylbenzene, said second fraction reacting then with benzene in the presence of a catalyst based on a dealuminized mordenite with a total atomic ratio Si/Al ranging from 30 to 80. The invention especially applies to the production of ethylbenzene and cumene respectively from ethylene and propene.
摘要翻译:本发明涉及一种在基于SiO 2 / Al 2 O 3的摩尔比为8至70的脱铝Y沸石的催化剂存在下由苯和脂族单烯烃生产烷基苯的方法,该反应产物之后 分馏成含有未转化的苯和单烷基苯的第一馏分和含有聚烷基苯的第二馏分,所述第二馏分在基于脱铝丝光沸石的催化剂存在下与苯反应,总原子比Si / Al 范围从30到80.本发明特别适用于从乙烯和丙烯生产乙苯和枯烯。
摘要:
Preparation of oligomers of C.sub.2 to C.sub.8 olefins useful in gasoline, yet fuel and diesel fuel is disclosed. The oligomerization is catalyzed by a modified mordenite in the H or NH.sub.4 + to form which has been sequentially treated with steam and an acid.
摘要:
For the aromatization of hydrocarbons containing 2 to 4 carbon atoms per molecule in the presence of a specific and preferably acid catalyst, the catalyst contains an MFI zeolite in which is introduced at least one noble metal from the platinum family and at least one additional metal chosen from within the group consisting of tin, germanium, lead and indium, and the catalyst optionally contains an amorphous matrix.
摘要:
The invention relates to a catalyst and a catalytic process for the aromatization of hydrocarbons containing 2 to 4 carbon atoms per molecule.The catalyst contains a MFI zeolite and an amorphous matrix containing at least one noble metal from the platinum family, at least one additional metal chosen from tin, germanium, lead and indium and at least one alkali metal or alkaline earth metal.
摘要:
The invention concerns a catalyst containing by weight:(a) from 10 to 99.99% of a mordenite being in major part shaped as needles and having a Si/Al atomic ratio of about 5 to 50, a benzene adsorption capacity of more than 5% by weight with respect to the dry mordenite weight, a volume V of a unit cell from 2.73 to 2,78 nm.sup.3, a sodium content by weight lower than 0.2% and adsorbing molecules of a kinetic diameter larger than about 6.6.times.10.sup.-10 m,(b) from 0 to 89.99% of a matrix,(c) from 0.005 to 15% of at least one metal from group VIII, and(d) from 0.005 to 10% of at least one metal from group IV A.The catalyst is used for hydroisomerizing cuts containing a high proportion of normal paraffins having 4, 5, 6 or 7 carbon atoms per molecule to obtain with a good conversion and selectivity a mixture containing a high proportion of isoparaffins.
摘要:
The invention concerns a new mordenite adsorbing molecules of a kinetic diameter higher than about 0.66 nm, prepared from a mordenite of the so-called small pores type.Said zeolite, admixed with a matrix and at least one group VIII metal can be used in n-paraffins hydroisomerization reactions.
摘要:
The invention concerns a new stabilized and dealuminated zeolite of OMEGA structure, characterized by:a total SiO.sub.2 /Al.sub.2 O.sub.3 molar ratio of at least 10,a sodium content lower than 0.5% by weight,a and c parameters of elementary mesh respectively lower than 1.814 nm and 0.759 nm,a nitrogen adsorption capacity at 77 K higher than about 5% by weight for a partial pressure P/P.sub.o of 0.19,a lattice of mesopores whose radii range preferably from 1.5 to 14 nm.This zeolite can be used in admixture with a convenient matrix in reactions of hydrocarbon conversion.
摘要翻译:本发明涉及一种OMEGA结构的新的稳定和脱铝沸石,其特征在于:SiO 2 / Al 2 O 3的总摩尔比至少为10,钠含量低于0.5重量%,基本网格的a和c参数分别低于1.814nm 和0.759nm,对于分压P / Po为0.19,77K时的氮吸附容量高于约5重量%,半径范围优选为1.5至14nm的中孔的晶格。 该沸石可以与烃转化反应中的方便的基质混合使用。
摘要:
The invention relates to a process for dewaxing an atomspheric or a vacuum gas oil in the presence of at least one catalyst comprising:a/ 2 to 99.4% by weight of a synthetic crystalline zeolite of the ferrisilicate type, the approximate chemical formula of the zeolite being M.sub.2/n O, Fe.sub.2 O.sub.3, xSiO.sub.2 where M represents a proton and/or a metal cation, n is the valence of M and x is a number ranging from 40 to 1,000, the zeolite having been synthetized in a fluoride medium and showing a fluorine content ranging from about 0.01 to 1.6% by weight, the zeolite having an X-ray diffraction diagram represented in Table 1 of the description;b/ 0.1 to 97.5% by weight of a matrix; andc/ at least one promoter selected from the group consisting of Pd, Pt, NiO, CoO, MoO.sub.3 and WO.sub.3.
摘要:
A new catalyst with a highly dealuminated mordenite base, useful in particular in hydrotreatment processes for improving the low temperature properties and the pour point and cloud point of oil cuts contains:(1) an acidic carrier comprising(a) at least 50% (calculated as dry base) of highly dealuminated mordenite and characterized by a molar ratio SiO.sub.2 /Al.sub.2 O.sub.3 higher than 110 and a sodium content lower than or equal to 0.5% by weight, and(b) an amorphous matrix, and(2) said acid carrier containing in association at least one oxide of a metal from group VIII and at least one oxide of a metal from group VI of the periodic classification of elements.
摘要翻译:具有高脱铝丝光沸石基质的新型催化剂,尤其用于改进油料的低温性能和倾点和浊点的加氢处理方法中包含:(1)酸性载体,其包含(a)至少50%(计算值 作为干碱),其特征在于SiO 2 / Al 2 O 3的摩尔比高于110,钠含量低于或等于0.5重量%,和(b)无定形基质,和(2)所述酸性载体含有 关于来自第VIII族的金属的至少一种氧化物和至少一种元素的周期性分类的来自第VI族的金属的氧化物。
摘要:
The invention concerns a catalyst containing by weight:(a) from 10 to 99.99% of a mordenite being in major part shaped as needles and having a Si/Al atomic ratio of about 5 to 50, a benzene adsorption capacity of more than 5% by weight with respect to the dry mordenite weight, a volume V of elementary mesh from 2.73 to 2.78 nm.sup.3, a sodium content by weight lower than 0.2% and adsorbing molecules of a kinetic diameter larger than about 6.6.times.10.sup.-10 m,(b) from 0 to 89,99% of a matrix,(c) from 0,005 to 15% of at least one metal from group VIII, and(d) from 0,005 to 10% of at least one metal from group IV A.The catalyst is used for hydroisomerizing cuts containing a high proportion of normal paraffins having 4, 5, 6 or 7 carbon atoms per molecule to obtain with a good conversion and selectivity a mixture containing a high proportion of isoparaffins.