摘要:
A functional structural body that can realize a prolonged life time by suppressing the decrease in function and that can fulfill resource saving without requiring a complicated replacement operation is provided. A functional structural body includes a skeletal body of a porous structure composed of a zeolite-type compound; and at least one solid acid present in the skeletal body, the skeletal body has channels connecting with each other, and the solid acid is present at least in the channels of the skeletal body.
摘要:
A method of using a heat generating catalyst in a hydrocarbon cracking process. The method includes providing a catalyst bed reactor which includes a catalyst bed of the heat generating catalyst disposed in the catalyst bed reactor. The heat generating catalyst includes at least one mordenite framework-inverted (MFI) zeolite catalyst having a Si/Al molar ratio of 15 or greater, and at least one metal oxide dispersed within a microstructure of the MFI zeolite catalyst. The method additionally includes introducing a hydrocarbon feed to the catalyst bed reactor and cracking the hydrocarbon feed to produce a cracking product. Additionally, an associated method of making the heat generating catalyst for hydrocarbon cracking is provided.
摘要:
The zeolite structure includes a zeolite material containing a plurality of zeolite particles and an inorganic binding material which binds the zeolite particles to one another, the plurality of zeolite particles include fine zeolite particles having a small average particle diameter and coarse zeolite particles which have an average particle diameter of three or more times the average particle diameter of the fine zeolite particles and which are not an agglomerated material of primary particles, a ratio of volumes of the coarse zeolite particles with respect to the whole volume of the plurality of zeolite particles is from 40 to 90 vol %, in the zeolite material, a ratio of a volume of the inorganic binding material is from 5 to 50 vol %, and a zeolite raw material containing the plurality of zeolite particles and the inorganic binding material is extruded to form a zeolite structure.
摘要:
The invention concerns a catalyst, in particular for reducing NO.sub.x, using methane or any mixture containing mostly methane. The catalyst consists of a zeolite of mordenite structure with "small pores" exchanged with Pd and/or Co. The invention is useful for reducing nitrogen oxides.
摘要:
This invention relates to a new form of crystalline material identified as mordenite-type, to a new and useful method for synthesizing said crystalline material and to use of said crystalline material prepared in accordance herewith as a catalyst for organic compound, e.g. hydrocarbon compound, conversion.
摘要:
The invention relates to a catalyst for isomerizing C.sub.8 aromatic fractions, the catalyst containing a mordenite and at least one metal from group VIII of the periodic classification of elements (such as Pt or Pd), characterized in that the mordenite is such that its skeleton Si/Al atomic ratio is between 6 and 10.5, its sodium weight content is below 2000 ppm, its unit cell volume is between 2.73 and 2.78 nm.sup.3, its benzene adsorption capacity is between 4 and 10% based on the dry mordenite weight and its 1,3,5-trimethylbenzene adsorption capacity is between 0.5 and 2.5% by weight based on the dry mordenite weight. The invention also relates to the preparation of the mordenite.
摘要:
A two-stage catalytic conversion process for converting an olefins-containing feed is disclosed which comprises contacting the feed in a first stage under substantially non-oligomerizing conditions with a catalyst comprising at least one metal (X) selected from the group consisting of metals from Groups 1a, 1b, 2a, 2b, 4b, 5b, 6b and 8 of the Periodic Table of the Elements and contacting the effluent from the first stage in the second stage under olefin oligomerization conditions at a temperature which is at least 50.degree. C. above the operating temperature of the first stage with a catalyst comprising at least one metal (Z) selected from the group consisting of metals from Groups 1b, 2a, 2b, 4b, 5b, 6b, and 8 on a mordenite-type of crystalline trivalent metal (Q) silicate.
摘要:
1,4-Bis(4-phenoxybenzoyl)benzene is made in a heterogeneous system by a reaction of diphenyl ether with 1,4-benzenedicarbonyl chloride at 190.degree.-250.degree. C. in the presence of a zeolite catalyst having a ring structure containing 12 oxygen atoms, which can be either an activated zeolite in hydrogen form or an iron-exchanged zeolite, which zeolite can be readily separated from the hot liquid phase in the reaction mixture. The mole ratio of diphenyl ether to 1,4-dicarbonyl chloride, when the catalyst is in hydrogen form, is about 50-80:1; when the catalyst is in iron-exhcanged form, it is about 10-50:1, and the weight ratio of 1,4-benzenedicarbonyl chloride to zeolite in hydrogen form is 3:1 to 1:2, while the ratio of 1,4-benzenedicarbonyl chloride to zeolite in iron-exchanged form is 10:1 to 1:32. The product readily crystallizes in a high state of purity from the cooled solution. 1,4-Bis(4-phenoxybenzoyl)benzene is a vaulable intermediate in the synthesis of polyetherketone resins.
摘要:
A catalyst, for the catalytic pyrolysis of hydrocarbons to olefins and diolefins at temperatures in the range of 600.degree.-750.degree. C. and pressures of 0.1 to 20 atmospheres, is a bifunctional synthetic modified mordenite zeolite of the formula (yH.zM.uNa) O.Al.sub.2 O.sub.3.SiO.sub.2 wherein M is Cu, Ag or Co/2 and u+y+z approach or equal 2. Good yields of ethylene and propylene are obtained from hydrocarbon feedstocks having boiling points up to 550.degree. C.
摘要翻译:用于在600-750℃的温度和0.1至20个大气压的压力下将烃催化裂解成烯烃和二烯烃的催化剂是式(yH.zM.uNa)的双功能合成改性的丝光沸石 )O.Al2O3.SiO2,其中M是Cu,Ag或Co / 2,u + y + z接近或等于2.乙烯和丙烯的良好产率是从沸点高达550℃的烃原料获得的。