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A kind of ruthenium-based Fischer-Tropsch synthesis catalyst and its preparation and application

A technology for catalyst, torrefaction synthesis, which can be used in the preparation of catalyst supports, liquid hydrocarbon mixtures, catalysts for physical/chemical processes, etc., and can solve the problems of large differences in the performance of FT synthesis catalysts.

Active Publication Date: 2017-01-04
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, depending on the nature of the carrier, the performance of the FT synthesis catalyst will vary greatly

Method used

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  • A kind of ruthenium-based Fischer-Tropsch synthesis catalyst and its preparation and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] Weigh 1000 grams of PA-1, then add 1000 milliliters of an aqueous solution containing 10 milliliters of nitric acid (product of Tianjin Chemical Reagent No. Dry the wet strips at 120°C for 4 hours to obtain dry strips, shape the dry strips, sieve, grind and sieve the dry strip materials (generally called industrial dry strip waste) with a length of less than 2mm, and take 100-200 Mesh sieving to obtain the modified PC-A1 of PA-1. See Table 1 for the k value of PC-A1.

Embodiment 2

[0072] Weigh 1000 grams of PA-1, then add 1000 milliliters of an aqueous solution containing 10 milliliters of nitric acid (product of Tianjin Chemical Reagent No. The wet strips were dried at 120°C for 4 hours, and roasted at 800°C for 4 hours to obtain the carrier. The carrier strips were shaped and sieved, and the carrier strip materials (generally called industrial carrier waste) with a length of less than 2mm were ground, sieved, and collected. Among them, sieve with 100-200 meshes to obtain the modified product PC-A2 of PA-1. See Table 1 for the k value of PC-A2.

Embodiment 3

[0074] Weigh 1000g of PA-2, and flash dry at 400°C for 6 minutes to obtain PC-A3, a modified product of PA-2. See Table 1 for the k value of PC-A3.

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Abstract

The invention relates to a ruthenium-based Fischer-Tropsch synthesis catalyst and preparation and application thereof. The catalyst contains an aluminum oxide carrier and an active metal component ruthenium, wherein the carrier has a bimodal pore structure, characterized by a mercury intrusion method, the carrier has the pore volume of 0.6-1.4ml / g and the specific surface area of 80-400m<2> / g, the volume of pores with the diameter of 5-20nm accounts for 30-60% the total pore volume, and the volume of pores with the diameter of 100-300nm accounts for 15-45% the total pore volume. Compared with the prior art, the catalyst provided by the invention has better Fischer-Tropsch synthesis performance.

Description

technical field [0001] The invention relates to a Fischer-Tropsch synthesis catalyst and its preparation and application, more specifically to a ruthenium-based Fischer-Tropsch synthesis catalyst and its preparation and application. Background technique [0002] In 1923, Fischer and Tropsch discovered a method for synthesizing hydrocarbon products from a mixture of CO and H2. The active components of Fischer-Tropsch synthesis catalysts are mainly Fe, Co and Ru, the order of activity is Ru>Co>Fe, and the order of chain growth probability is roughly Ru>Co>Fe. [0003] Literature studies have shown that Ru-based catalysts can maintain high activity in high water pressure and oxygen-containing atmospheres, and thus may be used in biomass synthesis gas conversion reactions. Using molecular sieves as carriers, the literature [Phys.Chem.C, 2008, 112:9706] studied the Ru catalyst supported by SBA-15 molecular sieves. Compared with factors such as Ru particle size, the c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/46B01J32/00B01J35/10C10G2/00
Inventor 侯朝鹏夏国富孙淑玲孙霞杨清河阎振楠吴昊李明丰
Owner CHINA PETROLEUM & CHEM CORP