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Catalyst used for synthesizing middle distillate from synthetic gas, its preparation method and application

A middle distillate oil and catalyst technology, which is applied in the field of synthesis gas selective synthesis of middle distillate oil catalyst and its preparation and application, achieving the effects of good stability, good stability, high thermal stability and hydrothermal stability

Inactive Publication Date: 2006-06-14
SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is no report on the use of mesoporous zirconia as a cobalt-based catalyst support for Fischer-Tropsch synthesis

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Take by weighing 20g the mesoporous zirconia (specific surface area 264m2) named after PMZ-1-400 2 / g, total pore volume 0.42cm 3 / g, aperture 16.1nm, according to the publication number is CN 1631796 patent preparation), weigh 0.55g La (NO 3 ) 3 Prepare 18ml of an aqueous solution, impregnate the above-mentioned selected mesoporous zirconia carrier, age for 12 hours, dry at 100°C, bake at 300°C for 10 hours, weigh 27.15g of Co(NO 3 ) 2 ·6H 2 0 and 0.58g RuCl 3 Made into 18ml of aqueous solution, then impregnated the above-mentioned mesoporous zirconia carrier loaded with lanthanum oxide, aged for 12 hours, dried at 100°C, calcined at 300°C for 10 hours, pressed into tablets, and sieved to obtain a Co content of 20 (wt%) , Ru is 1 (wt%), La 2 o 3 1 (wt%) mesoporous zirconia-supported cobalt-based catalyst 20%Col%Ru1%La 2 o 3 / PMZ-1-400.

[0027]Fill a pressurized fixed bed reactor (Φ10×500mm) with 1.5ml of the above-mentioned catalyst of 60-80 mesh, and perfor...

Embodiment 2

[0030] Take by weighing 20g the mesoporous zirconia (specific surface area 197m2) named after PMZ-6-800 2 / g, total pore volume 0.40cm 3 / g, pore diameter 8.9nm, according to publication number is CN 1631796 patent preparation), weighs 1.56g Ce (NO 3 ) 4 Prepare 18ml of aqueous solution, impregnate the above-mentioned selected mesoporous zirconia carrier, age for 18 hours, dry at 110°C, bake at 400°C for 8 hours, weigh 50.10g of Co(NO 3 ) 2 ·6H 2 O and 0.72 g RuCl 3 Dissolved in 13ml of water, impregnated the above-mentioned mesoporous zirconia carrier loaded with cerium oxide, aged for 18 hours, dried at 110°C, calcined at 400°C for 8 hours, pressed into tablets, and sieved to obtain Co containing 30 (wt%), Ru is 1 (wt%), CeO 2 2 (wt%) mesoporous zirconia supported cobalt-based catalyst 30%Col%Ru2%CeO 2 / PMZ-6-800.

[0031] Fill a pressurized fixed bed reactor (Φ10×500mm) with 1.5ml of the above-mentioned catalyst of 60-80 mesh, and perform temperature-programmed redu...

Embodiment 3

[0034] Take by weighing 20g the mesoporous zirconia (specific surface area 284m2) named after PMZ-9-500 2 / g, total pore volume 0.48cm 3 / g, aperture 7.8nm, according to the publication number is CN 1631796 patent preparation), weighed 1.61g Mn (NO 3 ) 2 Prepare 18ml of an aqueous solution, impregnate the above-mentioned selected mesoporous zirconia carrier, age for 24 hours, dry at 130°C, and bake at 600°C for 4 hours, then weigh 66.05g of Co(NO 3 ) 2 ·6H 2 O and 0.51g Re 2 o 7 Dissolved in 14ml of water, impregnated the above-mentioned mesoporous zirconia carrier loaded with manganese oxide, aged for 24 hours, dried at 130°C, calcined at 600°C for 4 hours, pressed into tablets, and sieved to obtain 35 (wt%)-containing Co. Re is 0.5(wt%), MnO 2 2 (wt%) mesoporous zirconia-supported cobalt-based catalyst 35%Co0.5%Re2%MnO 2 / PMZ-9-500.

[0035] Fill a pressurized fixed-bed reactor (Φ10×500mm) with 1.5ml of the above-mentioned catalyst of 60-80 mesh, and perform tempera...

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Abstract

A catalyst for synthesizing the intermediate oil from synthetic gas by Fischer-Tropsch reaction contains Co (5-35 Wt%), mesoporous ZrO2 as carrier (53-93), noble metal (0-2) and oxide of non-noble metal. Its preparing process includes such steps as impregnating said carrier in the aqueous solution of nitrate containing the oxide of non-noble metal or the alcohol solution of organic alkydester, and impregnating it in the equeous solution of cobalt nitrate and the nitrate (or chloride) or noble metal. It has high activity, stability, selectivity and mechanical performance.

Description

technical field [0001] The invention belongs to a catalyst and its preparation and application, in particular to a catalyst for the selective synthesis of middle distillates from synthesis gas and its preparation and application. Background technique [0002] With the development of the economy and the improvement of environmental protection awareness, especially the depletion of oil resources, the proportion of residual oil in crude oil is increasing, resulting in increasing refining costs, and the contradiction between supply and demand of clean diesel oil is becoming increasingly prominent. While coal and natural gas reserves are relatively abundant, it is of great significance to use them efficiently and comprehensively to partially replace petrochemical products. Fischer-Tropsch synthesis is an important way for indirect conversion of coal or natural gas into clean liquid fuels through synthesis gas. The hydrocarbon products obtained in this process can be further proce...

Claims

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Application Information

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IPC IPC(8): B01J23/89B01J23/75B01J37/02C10G5/00
Inventor 孙予罕刘亚纯陈建刚房克功
Owner SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
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