Catalyst for synthesizing gasoline and diesel fraction selected by synthesis gas

A catalyst and synthesis gas technology, which can be used in physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, petroleum industry, etc., and can solve problems that have not yet been seen.

Inactive Publication Date: 2003-05-21
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, so far, there has been no report on the direct selection of synthesis gas and diesel fractions from synthesis gas by using Fischer-Tropsch synthesis reaction.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0019] Take by weighing 20 grams of apricot kernel activated carbon (specific surface area 1182m 2 / g, pore volume 0.45cm 3 / g, flat diameter pore diameter 26.5 Å, place of production, Beijing Guanghua Timber Factory), washed and dried at 180°C for 12 hours before use. Weigh 26.795 grams of Fe (NO 3 ) 3 9H 2 O, 1.87 g Cu(NO 3 ) 2 ·3H 2 O, 1.27 g KNO 3, dissolved in 25ml of distilled water, adding 15ml of distilled water to make the total volume of the solution 40ml, this aqueous solution is impregnated with the above-mentioned apricot kernel activated carbon under negative pressure, dried naturally, and dried in an oven at 120°C for 8 hours to obtain Fe 15%, Cu 2% and K 2% of Catalyst 1. Example 2

example 2

[0020] Take by weighing 20 grams of apricot kernel activated carbon as used in example 1. Weigh 5.107 grams of Fe (NO 3 ) 3 9H 2 O, 13.944 g Co(NO 3 ) 3 ·6H 2 O was dissolved in 40 milliliters of water, and this aqueous solution was impregnated with the above-mentioned apricot kernel activated carbon under negative pressure, dried naturally, and dried in an oven at 120 ° C for 8 hours to obtain catalyst 2 containing 3% Fe and 12% Co. Example 3.

example 3

[0021] Take by weighing 20 grams of coconut shell activated carbon (specific surface area 939m 2 / g, pore volume 0.35cm 3 / g, flat diameter 26.6 , place of origin, Beijing Guanghua Timber Factory). The configuration contains 13.397 grams of Fe(NO 3 ) 3 9H 2 O, 9.144 g Co(NO 3 ) 3 ·6H 2 O, 1.88 g Cu(NO 3 ) 2 ·3H 2 O, 1.28 g KNO 3 40 milliliters of aqueous solution, with this aqueous solution impregnated above-mentioned apricot kernel gac under negative pressure, natural drying, 120 ℃ oven drying 8 hours, obtain Fe 7.5%, Co 7.5%, Cu 2% and K 2% catalyst 3. Example 4.

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Abstract

The catalyst for directly preparing high-grade gasoline and diesel oil clean liquid fuel by using synthetic gas and utilizing Fischer-Tropsch synthesis reaction is formed from three portions of active component, adjuvant and carrier, in which its active component is metal iron, the adjuvant is formed from metal elements of Cu, Ce, K, Co and Ru, etc. and its carrier can use apricot stone activatedcarbon or coconut activated carbon, the specific surface area of active carbon is 200 sq.m/g-2000 sq.m/g, its pore volume is 0.3-1.5 cu.cm/g, pore size distribution is 4-1000 A, the metal iron content is 4-40% of total weight of catalyst, the adjuvant element content is 0.01-20.0% of total weight of the catalyst. The addition of adjuvant element can effectively improve the reaction and stability property of catalyst.

Description

technical field [0001] The invention provides a novel method of selecting synthetic gas and diesel fractions (<C 20 ) Catalysts and methods used. Background technique [0002] Fischer-Tropsch Synthesis (FTS) is the core process of converting coal / natural gas into clean chemicals (such as gasoline, diesel, alcohols, etc.) through synthesis gas. In recent years, the proven reserves of coal / natural gas in my country have been continuously increasing, making the research in this field very active. However, the core of its efficient conversion is still the catalytic problem related to the research of Fischer-Tropsch synthesis catalysts. In the past eighty years of research on FTS catalysts, it has been found that Fe, Co and Ru are effective active components of FTS catalysts, and additive elements such as Ru, Zr, K, Cu and Mn have great influence on the activity and stability of FTS catalysts. It plays an important role. These types of catalysts are characterized by the ab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J21/18B01J23/745C07C1/04C10G5/00
Inventor 丁云杰马文平林培滋罗洪原林励吾
Owner CHINA PETROLEUM & CHEM CORP
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