摘要:
The invention relates to a catalyst consisting of at least: one matrix comprising at least one oxide which is selected from an amorphous oxide, an oxide with low crystallinity and a mixture of both; at least one solid microporous crystalline material which, in the calcined and anhydrous state, has the molar compositions X2O3:nYO2:mZO2, in which X is a trivalent element such as, for example, Al, B, Fe, In, Ga, Cr, Y is at least one trivalent element that is different from Ge and Z is Ge, the value (n+m) is at least equal to 5 and can be between 5 and ∞, and the value of n/m is at least equal to 1; and at least one hydrogenating compound, preferably Pt, Pd, Ir, Ru, Rh, and Re or a combination of same. The invention also relates to the use of said catalyst in a process in order to improve the quality of diesel fractions.
摘要:
The invention relates to a laminar microporous crystalline zeolite material known as ITQ-30 which, as when synthesized, has a chemical composition in the anhydrous state with the following molar relations: x (M1/n XO2):y YO2:SiO2:z R, wherein: x represents a value less than 0.1, which can be equal to zero; y has a value of less than 0.1, which can be equal to zero; z has a value of less than 0.1; M is selected from among H+, NH4+, one or more +n inorganic cations and combinations of same; X represents one or more +3 oxidation state chemical elements; Y represents one or more +4 oxidation state chemical elements; and R represents one or more organic compounds. The invention also relates to the method of preparing said zeolite, involving the use of one or more organic additives in a reaction mixture which is crystallized by means of heating, and to the use thereof in processes for the separation and transformation of organic compounds.
摘要:
The invention relates to a catalyst consisting of at least: one matrix comprising at least one oxide which is selected from an amorphous oxide, an oxide with low crystallinity and a mixture of both; at least one solid microporous crystalline material which, in the calcined and anhydrous state, has the molar compositions X2O3:nYO2:mZO2, in which X is a trivalent element such as, for example, Al, B, Fe, In, Ga, Cr, Y is at least one trivalent element that is different from Ge and Z is Ge, the value (n+m) is at least equal to 5 and can be between 5 and ∞, and the value of n/m is at least equal to 1; and at least one hydrogenating compound, preferably Pt, Pd, It, Ru, Rh, and Re or a combination of same. The invention also relates to the use of said catalyst in a process in order to improve the quality of diesel fractions.
摘要:
The present invention relates to a process for preparing phosphorus containing zeolite type catalysts based on crystalline aluminosilicates, the catalysts of this process and the use of these catalysts for the conversion of methanol to olefins.
摘要:
The invention relates to a method for extracting biochemical products obtained from a process of hydrothermal carbonization of biomass, which includes feeding an aqueous mixture of biomass from a preheating tube for the aqueous mixture of biomass to a vertical reactor with a predetermined level of floatation and an area for accumulation of steam and gases in the upper part thereof, wherein said method for extracting biochemical products is characterized in that it includes (a) heating the aqueous mixture of biomass to, or above, evaporation temperature in said vertical reactor and/or in a previous stage of preheating the aqueous mixture of biomass, increasing the generation of stream and/or gases at the predetermined flotation level of the vertical reactor, (b) extracting the steam and/or gases generated in the previous stage and accumulated in the upper part of the vertical reactor, and (c) cooling the gases and/or condensing the steam extracted in the previous stage at different levels of temperature and pressure. The invention likewise relates to the biochemical product obtainable from said method, as well as to a system for implementing said method.
摘要:
A process for providing methylene-bridged polyphenyl polyamines from aniline and formaldehyde according to the invention comprises the subsequent steps ofa) condensing aniline and formaldehyde, providing a condensate, the molar ratio of aniline to formaldehyde being chosen in the range of 2 to 3.5;b) reacting, in a first catalytic reaction step, at a reaction temperature within the range of about 30° C. to about 100° C., said condensate over a solid catalyst being chosen from the group consisting of clays, silicates, silica-aluminas and ion exchange resins, whereby an intermediate mixture is provided, the intermediate mixture comprising amino benzyl amines;c) converting, in a subsequent catalytic reaction step, at a temperature within the range of about 70° C. to about 250° C., the reaction temperature in said subsequent catalytic reaction step is higher than the reaction temperature in said first catalytic reaction step, said intermediate mixture into methylene-bridged polyphenyl polyamines in presence of a subsequent solid catalyst being chosen from the group consisting of zeolites, delaminated zeolites and ordered mesoporous materials, thereby providing said methylene-bridged polyphenyl polyamines.
摘要:
A process for the preparation of a desulphurisation material includes:forming a zinc/aluminium hydrotalcite composition, and (ii) calcining the composition to form a zinc oxide/alumina material, in which one or more nickel compounds are included in the hydrotalcite formation step, and/or are impregnated onto the hydrotalcite composition and/or the calcined zinc oxide/alumina material, and the resulting composition dried and recovered.
摘要:
Described herein are zeolite microporous crystalline materials comprising, in the heated state and in the absence of defects in its crystalline framework manifested by the presence of silanols, the empirical formula: x(M1/nXO2):yYO2:SiO2, wherein M is selected from H+, an inorganic cation of charge +n, and mixtures thereof, X is at least one chemical element having an oxidation state of +3, Y is at least one second chemical element other than Si having an oxidation state +4, x has a value between 0 and about 0.3, y has a value between 0 and about 0.1, and wherein the synthesized material has an X-ray diffraction pattern having at least values of angle 2θ (degrees) and relative intensities (I/I0) described. Process of making the microporous crystalline materials are also disclosed.
摘要翻译:本文描述的是沸石微孔结晶材料,其包括在加热状态下,在不存在由硅烷醇存在的结晶框架中缺陷的情况下,经验式:x(M1 / nXO2):yYO2:SiO2,其中M选自 H +,电荷无机阳离子+ n及其混合物,X是氧化态为+3的至少一种化学元素,Y是具有氧化态+4以外的除了Si以外的至少一种第二化学元素,x具有 值在0和约0.3之间,y具有在0和约0.1之间的值,并且其中合成材料具有至少具有所述角度2θ(度)和相对强度(I / I0)的X射线衍射图。 还公开了制备微孔结晶材料的方法。
摘要:
The invention relates to a microporous crystalline material which is characterised in that it has the following chemical composition in the calcined state: X2O3: n YO2: m GeO2, wherein (n+m) is equal to at least 5, X is a trivalent element, Y corresponds to one or more tetravalent elements other than Ge and the Y/Ge ratio is greater than 1. Moreover, in the synthesised form without calcination, said material has an X-ray diffraction pattern in which the main lines thereof are as follows: (1), in which (mf) represents relative intensity of between 80 and 100, “d” represents relative intensity of between 20 and 40 and “md” represents relative intensity of between 0 and 20, which is calculated as a percentage with respect to the most intense peak. The invention also relates to the method of preparing said material and the use thereof in the conversion of food products comprising organic compounds.
摘要翻译:本发明涉及一种微孔结晶材料,其特征在于其在煅烧状态下具有以下化学组成:X 2 O 3 :n YO 2:m GeO 2,其中(n + m)等于至少5,X是三价元素 ,Y对应于除Ge以外的一种以上的四价元素,Y / Ge比大于1.此外,在不进行煅烧的合成形式中,所述材料具有X射线衍射图,其主线如下 :(1)其中(mf)表示80〜100的相对强度,“d”表示20〜40的相对强度,“md”表示0〜20的相对强度,以 尊重最强烈的高峰。 本发明还涉及制备所述材料的方法及其在包含有机化合物的食品的转化中的用途。
摘要:
The invention relates to a method of preparing monoesters of polyhydroxyl alcohols. The inventive method comprises a first step consisting in protecting the hydroxyl groups of a polyhydroxyl alcohol by means of acetalisation and a second step comprising the sterification of said acetalised polyhydroxyl alcohol with a fatty acid in the presence of one or more solid acid catalysts.