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。
摘要:
A process for the preparation of essentially linear and saturated hydrocarbons from natural gas (1), comprising the following successive steps, the order of steps (b) and (c) being exchangeable or said steps being capable of being conducted simultaneously: (a) producing (6) synthesis gas (7) by treatment of said gas, (b) mixing an effluent comprising at least the synthesis gas (7) obtained from the preceding step and an effluent (4) comprising mainly C.sub.2 -C.sub.4 hydrocarbons, (c) cooling an effluent comprising at least the mixture obtained from the preceding step, (d) transforming the effluent (8) obtained from step (c) in a cracking zone (10), (e) separating (12) the effluent obtained at step (d) into an effluent comprising mainly water (13) and an anhydrous effluent (14), and (f) transforming (15) the effluent obtained from step (e) (14) by a Fischer-Tropsch synthesis.
摘要:
A method of deacidizing a gaseous effluent comprising acid compounds where the gaseous effluent is contacted in C1 with an adsorbent solution so as to obtain a gaseous effluent depleted in acid compounds and an absorbent solution laden with acid compounds, the absorbent solution being selected for its property of forming two separable phases when it has absorbed an amount of acid compounds and when it is heated. The absorbent solution laden with acid compounds is then heated in E1 and E3 so as to separate two fractions: a first absorbent solution fraction depleted in acid compounds and a second absorbent solution fraction enriched in acid compounds. These two fractions are then separated in BS1. The second fraction is regenerated in C2 so as to release part of the acid compounds, and the first absorbent solution fraction and the regenerated absorbent solution are recycled as absorbent solution.
摘要:
Process for desulfurization of an effluent for cracking or steam-cracking hydrocarbons, more particularly a gasoline for example for catalytic cracking that comprises the elimination of thiophenic compounds by alkylation of these compounds, followed by a distillation, a hydrocracking of said alkyl-thiophenic compounds, then a hydrodesulfurization of the effluent that is obtained from the hydrocracking zone. In a preferred embodiment, this process comprises a preliminary stage for separating the cracking or steam-cracking effluent into three fractions, and proposes sending to the alkylation stage only the intermediate fraction that is low in heavy basic nitrogen-containing compounds that are initially present in the effluents that are to be alkylated.
摘要:
The method allows to incorporate an alcohol or a mixture of alcohols into fuels by minimizing the energy expenditure linked with the prior production of the alcohol or of the mixture of alcohols. One or more bases of the fuel, to which an oxygen-containing compound or a mixture of oxygen-containing compounds have possibly been added, are used to extract the alcohol or the alcohol mixture contained in aqueous solutions produced by biomass fermentation processes. After adjusting the temperature of the aqueous solution stream and of the stream containing one or more bases of the fuel through exchangers, these streams are fed into an extractor. The extract leaving the extractor is then dried and/or an oxygen-containing compound or a mixture of oxygen-containing compounds is added thereto. The raffinate leaving the extractor is sent to a water treating plant or recycled. The stream of dried fuel to which an oxygen-containing compound or a mixture of oxygen-containing compounds has possibly been added is sent to be stored. The water leaving the drying stage is sent to a water treating plant or recycled.
摘要:
The method allows to incorporate an alcohol or a mixture of alcohols into fuels by minimizing the energy expenditure linked with the prior production of the alcohol or of the mixture of alcohols. One or more bases of the fuel, to which an oxygen-containing compound or a mixture of oxygen-containing compounds have possibly been added, are used to extract the alcohol or the alcohol mixture contained in aqueous solutions produced by biomass fermentation processes. After adjusting the temperature of the aqueous solution stream and of the stream containing one or more bases of the fuel through exchangers, these streams are fed into an extractor. The extract leaving the extractor is then dried and/or an oxygen-containing compound or a mixture of oxygen-containing compounds is added thereto. The raffinate leaving the extractor is sent to a water treating plant or recycled, The stream of dried fuel to which an oxygen-containing compound or a mixture of oxygen-containing compounds has possibly been added is sent to be stored. The water leaving the drying stage is sent to a water treating plant or recycled.
摘要:
The gaseous effluent flowing in through line 1 is contacted in absorption zone ZA with the liquid absorbent solution flowing in through line 9. The gaseous effluent depleted in acid compounds is discharged through line 2. The absorbent solution laden with acid compounds is discharged through line 3. The absorbent solution once laden with acid compounds comprises two phases: a first phase poor in acid compounds and a second phase rich in acid compounds. The two phases are separated in zone ZS. The first phase is recycled through lines 5 and 9 to absorption zone ZA. The second phase is fed through line 4 into regeneration zone ZR. In zone ZR, the acid compounds are separated from the absorbent solution. The acid compounds are discharged through line 7. The regenerated absorbent solution is recycled through lines 6 and 9 to zone ZA.
摘要:
The present invention relates to a process for the production of electricity in a fuel cell from hydrocarbons that includes passing a cooled effluent in a first circuit having at least one filter for depositing soot in the filter. The filter is regenerated when concurrently passing the cooled effluent in a second circuit. The present invention also relates to a device for implementing the process.
摘要:
A process for the production of elemental sulphur by reacting hydrogen sulphide with sulphur dioxide in a liquid reaction medium comprising an organic solvent for the two compounds, e.g., ethylene glycol, and containing at least one soluble catalytic basic compound, e.g., sodium salicylate, comprises bringing a gas mixture containing sulphur dioxide and hydrogen sulphide into contact with a co-current of the solvent containing the catalytic basic compound.