摘要:
The invention relates to a process for preparation of a zeolite that is selected from among the ZBM-30, ZSM-48, EU-2 and EU-11 zeolites, comprising the mixing in an aqueous medium of at least one source of at least one element X (Si and/or Ge) and at least one nitrogen-containing organic compound Q. Said nitrogen-containing organic compound Q is selected from among the compounds comprising at least one ether group and two terminal ammonium groups and their precursors.
摘要:
The invention relates to a process for preparation of a zeolite that is selected from among the ZBM-30, ZSM-48, EU-2 and EU-11 zeolites, comprising the mixing in an aqueous medium of at least one source of at least one element X (Si and/or Ge) and at least one nitrogen-containing organic compound Q. Said nitrogen-containing organic compound Q is selected from among the compounds comprising at least one ether group and two terminal ammonium groups and their precursors.
摘要:
A new EUO-structural-type zeolite that comprises at least one tetravalent element X that is selected from among silicon, tin, titanium and germanium and optionally at least one trivalent element T that is selected from among aluminum, iron, boron, indium and gallium is described. This new zeolite is characterized in that it contains, in its crude synthesis form, the nitrogen-containing organic cation of formula N,N-dimethyl-N,N-di(3,3-dimethylbutyl)ammonium. A method for the preparation of this zeolite is also described.
摘要:
A new EUO-structural-type zeolite that comprises at least one tetravalent element X that is selected from among silicon, tin, titanium and germanium and optionally at least one trivalent element T that is selected from among aluminum, iron, boron, indium and gallium is described. This new zeolite is characterized in that it contains, in its crude synthesis form, the nitrogen-containing organic cation of formula N,N-dimethyl-N,N-di(3,3-dimethylbutyl)ammonium. A method for the preparation of this zeolite is also described.
摘要:
The present invention concerns a process for preparing a zeolite with structure type EUO comprising at least one element X selected from silicon and germanium and at least one element T selected from iron, aluminium, gallium, boron, titanium, vanadium, zirconium, molybdenum, arsenic, antimony, chromium and manganese, characterized in that seeds of at least one zeolitic material are used comprising at least one element X′ selected from silicon and germanium and at least one element T′ selected from iron, aluminium, gallium, boron, titanium, vanadium, zirconium, molybdenum, arsenic, antimony, chromium and manganese with a ratio X′/T′ of less than 200, said seeds being different from the zeolite with structure type EUO being prepared. The present invention also concerns the use of the zeolite obtained as a catalyst in a process for converting hydrocarbon-containing feeds, as an adsorbent to control pollution and as a molecular sieve for separation, and more particularly as a catalyst in a process for isomerizing aromatic compounds containing 8 carbon atoms.
摘要:
An EUO-structural-type zeolite that comprises at least one element X that is selected from among silicon and germanium and at least one element T that is selected from among aluminum, iron, gallium, vanadium, zirconium, molybdenum, arsenic, antimony, chromium and manganese is described. It contains at least one alkyl quinuclidinium cation in its intracrystalline pores and has an N/X atomic ratio of more than 0.065, whereby N represents the nitrogen element. This invention also relates to a process for preparation of said zeolite and the use of the latter as an acidic solid in a process for conversion of hydrocarbon feedstocks.
摘要:
An EUO-structural-type zeolite that comprises at least one element X that is selected from among silicon and germanium and at least one element T that is selected from among aluminum, iron, gallium, vanadium, zirconium, molybdenum, arsenic, antimony, chromium and manganese is described. It contains at least one alkyl quinuclidinium cation in its intracrystalline pores and has an N/X atomic ratio of more than 0.065, whereby N represents the nitrogen element. This invention also relates to a process for preparation of said zeolite and the use of the latter as an acidic solid in a process for conversion of hydrocarbon feedstocks.
摘要:
The invention relates to an acidic silicoaluminate solid that has a microporous zeolitic phase that is characterized by at least one infrared band between 400-1600 cm−1, an organized mesoporosity that is characterized by the presence of at least one X-diffraction line between 20-100 Å, a silica/alumina molar ratio of between 5-250 and an acidity that is measured by infrared analysis via an area of the band at about 1545 cm−1 at least equal to 50 g of dry solid. The invention also relates to a process for the preparation of the solid, a substrate that consists of solid and at least one matrix, and a catalyst that comprises said solid. The catalyst can be used for the conversion of hydrocarbons and in particular hydrocracking.
摘要:
Described is a process for the treatment of at least one zeolite having a pore size of less than or equal to 7 Å comprising at least a) a step for dealumination of said zeolite, b) a cationic exchange step using at least one cation other than H+, c) a step for treatment of said zeolite obtained in step b) in the presence of at least one molecular compound containing at least one silicon atom, and d) at least one heat treatment step. The present invention also concerns the preparation of a catalyst containing the zeolite treated in accordance with the treatment process the subject-matter of the invention and the use of said catalyst in a process for the oligomerization of an olefinic charge containing hydrocarbon molecules having from 2 to 12 carbon atoms per molecule.
摘要翻译:描述了一种处理至少一种孔径小于或等于7的至少一种沸石的方法,该沸石至少包括a)使所述沸石脱铝的步骤,b)使用至少一种阳离子以外的阳离子交换步骤 H +,c)在至少一种含有至少一个硅原子的分子化合物的存在下,在步骤b)中得到的所述沸石的处理步骤,和d)至少一个热处理步骤。 本发明还涉及含有根据本发明主题的处理方法处理的沸石的催化剂的制备以及所述催化剂在含有烃分子的烯烃电荷低聚方法中的用途, 每个分子12个碳原子。
摘要:
A catalyst is described comprising at least one zeolite with structure type EUO, at least one zeolite with structure type NES, at least one metal selected from metals from groups IIIA, VIIB, VIIB and VIII and at least one porous mineral matrix. The catalyst of the invention is used in a process for isomerizing a feed comprising aromatic compounds containing 8 carbon atoms per molecule.