TH2685A - Process for preparing hydrocarbons - Google Patents

Abstract

Synthetic gases with a mole H2 / CO ratio between 0.25 and 1.0 are converted to hydrocarbons by contact with the Fischer-Tropsch catalyst mixture containing special cobalt and cobalt. CO (CO-Shift) substitutes containing Cu and Zn are present in the mixture.Both catalysts are present in quantities that satisfy the following relationships (chemical formula), M is atomic ratio (Cu +). Zn) / Co in catalyst mixtures and F is the mole ratio H2 / CO in synthetic gases.

Claims (8)

1. The process for preparing hydrocarbons with a carbon monoxide catalyst reaction with hydrogen that characterizes H2 and CO-containing feeders with a mole ratio H2 / CO (F) in the range of 0.25 and 1.0 will Exposure to two catalyst mixtures at high temperature and pressure. One type of catalyst is a catalist consisting of 3-60 parts cobalt by weight. And at least one other metal selected from the group made up 0.1-100% zirconium, titanium and chromium by weight per silica alumina. Or 100 parts silica-alumina by weight and which was prepared by massaging and / or diffusion, and the other catalyst is a copper and zinc component. Where the Cu / Zn atomic ratio is in the range of 0.1 and 10, and that the two catalysts exist in the catalyst mixtures in ratios, as follows the relationship (chemical formula), where M is the atomic ratio (Cu + Zn) / CO in catalyst mixtures 2. The process, as assumed in Clause 1, characterizes that the cobalt catalyst is relative (3 + 4R > L / S> (0.3 + 0.4R), where L = The total amount of cobalt available on the catalist. Shown in milligrams of Co / mL of the catalyst S = the surface area of the catalyst Shown in meter 2 / ml of the catalyst and R = weight ratio of the cobalt content of the receptive mass by massaging against the total cobalt content available on the catalyst 3. The process, as held by claim 1 or 2, that characterizes 100 parts of the substrate by weight. Cobalt catalyst contains 15-50 parts cobalt by weight and 0.1-5 parts of other metal by weight. If during the preparation the cobalt binds first and the other metal catches next. Or another type of metal catches first and cobalt catches next. 4. The process, as set forth in one of the claims 1-3, characterizes that cobalt catalyst contains zirconium as another metal and silica as a substrate. 5. The process, as it is, holds one of the claims 1-4 that characterizes that the copper and zinc-containing components have a Cu / Zn atomic ratio in the range of 0.25 and 4. 6. Process, as it holds, in any of the claims 1-5, that characterizes the process at 125-350 ํ C and 5-100 bar pressure. 7. The process, as claimed in claim 6, characterizes that the process is performed at a temperature of 175-275 C and a pressure of 10-75 bar. 8. Process, as it assumes, in one of the claims 1-7, that characterizes that in order to prepare at least part of the central distillate from the product obtained on the catalyst mix With an initial boiling point higher than the final boiling point of the heaviest central distillate desired as the final product, it is hydro-cracking by exposure to a catalyst containing noble metals from group VIII. One or more species supported on the substrate at high temperatures and pressures.