摘要:
A process for the preparation of a catalyst comprising sequential deposition of cobalt or a cobalt compound, and scandium or a scandium compound, on an inert carrier oxide, which catalyst can be used in the conversion of synthesis gas according to the Fischer-Tropsch process.
摘要:
A process for obtaining a tertiary olefin, e.g. isobutylene in a very pure state by decomposing the corresponding ether, e.g. methyl tert. butyl ether, in the presence of a catalyst constituted by silica, modified by the addition of at least one element or compound of an element preferably chosen from the group constituted by rubidium, cesium, magnesium, calcium, strontium, barium, gallium, lanthanum, cerium, praseodymium, neodymium and uranium and optionally by the addition of at least one element or compound of an element chosen from the group constituted by aluminium, titanium and zirconium.
摘要:
Manufacture of catalysts containing at least three essential metals consisting of copper, zinc and aluminum.The process for manufacturing the catalyst comprises the formation of homogeneous amorphous precipitate of the above-mentioned metals, followed with a washing in two steps, first with water, then with an acid solution.These catalysts are used in balanced reactions involving alcohols and synthesis gas, particularly in methanol synthesis.
摘要:
A process for the synthesis of essentially linear saturated C.sub.5.sup.+ hydrocarbons from a gas phase comprising synthesis gas is described. The process comprises circulation of an inert liquid phase and said gas phase in a reaction zone, in which the reaction zone is provided with at least one means for introducing gas and liquid phases, and at least one means for extracting the hydrocarbon phase formed by the Fischer-Tropsch reaction, and characterized in that the reaction zone comprises at least one mixing means. Preferably, at least one mixing means is a static mixer. An apparatus for carrying out the described process is also described.
摘要:
The present invention relates to a process for preparing a precursor of a catalyst containing copper, aluminum and zinc.This precursor is formed by the mixing of two ternary precursors, at different stages of their manufacturing, these two ternary precursors being different from one another in their metallic stoichiometry (atomic ratios between Cu, Zn and Al), in their crystallographic structure and in their elemental morphology.The catalyst obtained from this precursor can be used in particular for the synthesis of methanol.
摘要:
The present invention relates to a process for preparing a precursor of a catalyst containing copper, aluminum and zinc.This precursor is formed by the mixing of two ternary precursors, at different stages of their manufacturing, these two ternary precursors being different from one another in their metallic stoichiometry (atomic ratios between Cu, Zn and Al), in their crystalographic structure and in their elemental morphology.The catalyst obtained from this precursor can be used in particular for the synthesis of methanol.
摘要:
The invention concerns a process for converting a stream of natural or associated gas into liquid fractions, comprising: a) a step for converting said stream of gas into a synthesis gas SG; b) a step FT for Fischer-Tropsch synthesis to convert the SG into liquid fractions; c) a step for fractionating the effluents from the Fischer-Tropsch synthesis into at least one relatively heavy fraction comprising waxes with a boiling point of 565° C. or more and at least one relatively light fraction; d) a step HCKI for isomerization hydrocracking of the relatively heavy fraction, in which at least 75% by weight of the fraction of the feed with a boiling point of more than 565° C. is converted into compounds boiling below 565° C.; e) at least one step for mixing at least the effluents from step HCKI (step d)), the light fraction from step c) and a crude oil P, to thereby produce an oil P*.
摘要:
In the synthesis of essentially linear saturated C.sub.5.sup.+ hydrocarbons from synthesis gas, the reactive gas phase circulating either as a downflow or as an upflow through a fixed bed catalytic reaction zone, an upflow of an inert liquid phase through said zone at a superficial flow rate of more than 0.01 cm/s, as compared to a downflow of liquid phase, increases the selectivity of the process to the formation of the desired C.sub.5.sup.+ cut.
摘要:
The invention relates to a process for synthesizing mainly linear and saturated hydrocarbons containing at least 80% by weight of C.sub.5 + hydrocarbons in relation to all of the hydrocarbons formed, from a synthesis gas CO--(CO.sub.2)--H.sub.2, the synthesis gas being converted into hydrocarbons under a total pressure ranging between 0.1 and 15 MPa, the temperature ranging between 150.degree. and 350.degree. C., the hourly space velocity ranging between 100 and 30,000 volumes of synthesis gas per volume of catalyst and per hour, and the H.sub.2 /CO molar ratio in the synthesis gas ranging between 1:2 and 5:1, said process being characterized in that it is carried out in a reaction zone with an ebullating catalytic bed in the presence of a catalyst comprising at least one metal from group VIII, and in the presence of a liquid phase.
摘要翻译:本发明涉及一种主要合成含有至少80重量%的C5 +烃相对于所形成的烃的线性和饱和烃的方法,由合成气CO-(CO 2)-H 2合成,合成气被转化为 总压力介于0.1和15MPa之间的碳氢化合物,温度在150-350℃之间,小时空间速度在每体积催化剂和每小时100至30,000体积的合成气和H 2 / CO 合成气中的摩尔比在1:2至5:1之间,所述方法的特征在于,在催化剂存在下,在沸腾催化剂床的反应区中进行反应,所述催化剂包含至少一种来自第VIII族的金属, 并在液相存在下进行。