TH3635B - Process for producing hydrocarbons - Google Patents

Abstract

Process for producing hydrocarbons By reacting carbon monoxide and hydrogen using a catalyst. This exposes the starting gas to a catalyst at high temperatures and pressures. The catalyst consisted of 3-60 parts cobalt, zirconium, titanium, chromium and / or ruthenium 0.1 -100 parts wt per 100 parts subport material. The catalyst is in the form of a fixed bed and has an external surface area SE, and in this bed, the starting gas and hydrocarbon-containing liquid that boils over 100C are passed through the catalyst in the downward direction. Bottom at Liquid acceleration at one surface at the inlet of the bed that makes the product VS x SE greater than 1.

Claims (6)

1. The process for producing hydrocarbons by reacting carbon monoxide and hydrogen by using a catalyst has the feature that the carbon monoxide and hydrogen mixture is exposed to the catalyst at high temperatures and pressures that the catalyst consists of 3. -60 parts by weight, cobald and 0.1-100 parts by weight. At least one other metal is selected from zirconium, titanium, chromium and ruthenium per 100 parts by weight, silica, alumina or silica-alumina. which is prepared by mixing and/or embedding. The catalyst is in the form of a fixed bed. It has an external surface area SE (in cm2/mL), and during operation, liquids boiling at temperatures above 100 C containing almost one or more hydrocarbons are passed through the catalyst bed in a downward direction. downward with the gas starting at a liquid surface flow velocity VS (in cm/s). One has a catalyst bed inlet corresponding to the relationship VS x SE > 1 (with sec. -1) 2. The process according to Claim 1 is characterized by the fact that for the fluid transported through the catalyst bed during operation it utilizes part of the heavy hydrocarbon fraction that is separated from the product. obtained by synthesizing hydrocarbons by distillation and/or part of the heavy hydrocarbon fraction that is separated from the hydrocracking product as a follow-up to the hydrocarbon synthesis step. In the production of the intermediate distillation section 3. The process according to Claim 2 has the feature that for the liquid being transported through the catalyst bed during operation it takes advantage of part of the residual that is separated from it. Products obtained from the synthesis of hydrocarbons 4. Any one of the processes under Claims 1-3 It is characterized that the catalyst bed has an external surface area (SE) between 5 and 70 cm2/ml and an internal surface area (Si) between 10 and 400 m2/ml. 10 9 > SE2 X Si > 2.5 X 10 4 5. Any one of the procedures under Claims 1-4 There is a feature that the reactive agent corresponds to the relationship. (chemical formula), where L = total amount of cobalt present on the catalyst, in mg of cobalt/ml. Si = surface area inside the catalyst, in m2/mL, and R = weight ratio between the amount of cobalt mixed with the catalyst by mixing method and the total amount of cobalt present on the catalyst 6. . Any one of Claims 1-5 procedures There is a feature that the support material is connected 100 parts by body weight. The reaction consists of 15-50 parts by weight of cobalt and 0.1-5 by weight of other metals. If during preparation cobalt was added to the support material. first and put other metals later, or put 5-40 parts by weight of other metals If during preparation other metals are added first and cobalt is added later 7. Any one of Claims 1-6 processes It is characterized by the fact that the catalyst contains zirconium as the other metal and silica as the support material. 8. Any one of Claims 1-7 processes It is characterized by operating at 125-350 C and at pressures of 0.5 - 10 MPa. 9. Processes according to claim 8 are characterized by operating at 172 - 275 C and at a pressure of 1-7.5 MP. Pascal 1 0. Any one of Claims 1-9 Processes It is characterized that the H2/CO gas mixture is obtained by steam reforming or partially oxidized from the substance. Light hydrocarbons such as methane 1 1. Any one of Claims 1-10 processes It has the characteristic that the H2/CO gas mixture has a molar H2/CO ratio higher than 1.5 1. 2. Process according to Claim No. It has the characteristic that the H2/CO gas mixture has a molar H2/CO ratio in the range of 1.75 to 2.25 1. 3. Any one of Claims 1-12 procedures It is characterized that in the production of intermediate distillates from cobalt catalyst products, at least part of the desired end product with initial boiling point above the boiling point of the heaviest intermediate distillate is processed. hydrocracking by providing a portion of such products exposure to high temperature and pressure with the catalyst It consists of one or more noble metals belonging to group VIII elements binding to Subport 1. 4. The process according to Claim 13 is characterized by the use of a catalyst containing 0.2-1% by weight of platinum or palladium in the hydrocracking process. on the silica-alumina 1 support material 5. Process according to Claim No. 13 or No. 14 It is characterized by operating hydrocracking at temperatures of 250-350 °C and at pressures of 1-7.5 MPa1. 6. Hydrocarbons whenever they are processed. As requested to hold any of the rights of claims 1-15