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Catalyst for using coal tar to prepare clean fuel oil by catalytic hydrogenation, preparation method and applications

A catalytic hydrogenation and coal tar technology, which is applied in the direction of catalyst activation/preparation, metal/metal oxide/metal hydroxide catalyst, physical/chemical process catalyst, etc., can solve the problems of complex processing technology and achieve simple process, Strong operability and stable performance

Inactive Publication Date: 2009-11-11
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

Some research units try to remove moisture, mechanical impurities and asphalt pretreatment, and then carry out deep hydrofinishing and hydrocracking of heavy oil fractions. The processing process requires two catalysts, namely hydrofining catalysts and hydrocracking catalysts. And the processing technology is more complicated

Method used

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  • Catalyst for using coal tar to prepare clean fuel oil by catalytic hydrogenation, preparation method and applications
  • Catalyst for using coal tar to prepare clean fuel oil by catalytic hydrogenation, preparation method and applications

Examples

Experimental program
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Effect test

Embodiment 1

[0026] Weigh 2.66g of aluminum sulfate and 56.84g of sodium silicate, dissolve them in 50g of deionized water to form an aqueous solution, add ammonia water dropwise to adjust the pH of the mixed solution to 8, and react at 40°C for 1.5 hours, then the product is filtered, washed, After drying and calcining at 550°C for 5 hours, the silica / alumina carrier A is obtained. For the specific preparation method, see CN 1184703A. The specific surface area of ​​the carrier A is 320m 2 / g, the pore diameter is 6nm, and the pore volume is 0.7ml / g. Weigh 1.01g of sodium molybdate, 1.75g ​​of cobalt nitrate, 1.56g of nickel chloride and 5.34g of sodium tungstate to make a mixed aqueous solution, impregnate it on 10g of carrier A by equal volume impregnation method, dry at 100°C for 12 hours, 500 ℃ roasting for 6 hours. The calcined carrier loaded with metal oxides was kneaded with 2.5g of kaolin solution and 0.3g of scallop powder, extruded on an extruder, and dried at 120°C for 5 hours,...

Embodiment 2

[0029] Weigh 1.64g of sodium metaaluminate and 41.7g of tetraethyl orthosilicate, the experimental procedure is the same as that of Example 1, prepare carrier B (see CN 1184703A for specific preparation method), the specific surface area of ​​carrier B is 240m 2 / g, pore diameter 15nm, pore volume 0.65ml / g. Weigh 1.66g ammonium molybdate, 1.75g ​​nickel nitrate, 2.19g cobalt oxalate and 5.58g ammonium paratungstate to prepare a mixed aqueous solution, impregnate 10g carrier B by equal volume impregnation method, dry at 20°C for 70 hours, and roast at 400°C for 10 hours . After cooling, it is kneaded with 5g of aluminum sol, and made into a spherical shape on a spheroid forming machine. After drying the spherical catalyst at 80°C for 24 hours, it is roasted in a muffle furnace. The roasting temperature is 300°C, and the roasting time is 12 hours to obtain clean coal tar. fuel oil catalyst. The composition of the final catalyst is: molybdenum oxide 9%, nickel oxide 3%, cobalt ...

Embodiment 3

[0032] Take by weighing 2.5g aluminum nitrate and 20wt% silica sol 100g, prepare silica / alumina carrier C according to the test procedure of embodiment 1 (see CN 1184703A for specific preparation method), the specific surface area of ​​carrier C is 450m 2 / g, pore diameter 2nm, pore volume 0.3ml / g. Weigh 6.93g of molybdenum nitrate, 0.03g of cobalt carbonate, 2.37g of nickel sulfate and 3.88g of ammonium metatungstate to prepare a mixed aqueous solution, impregnate it on 10g of carrier C by equal volume impregnation method, dry at 120°C for 8 hours, and roast at 500°C 3.5 hours. After cooling, knead with 8g sodium carboxymethyl cellulose solution, extrude into strips on a strip forming machine, dry the strip catalyst at 120°C for 5 hours and then roast at 800°C for 3 hours to obtain a clean fuel oil catalyst made from coal tar. The composition of the final catalyst is: molybdenum oxide 15%, nickel oxide 4.5%, cobalt oxide 0.1%, tungsten oxide 13.7%, silicon oxide 40%, aluminu...

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Abstract

The invention relates to a catalyst for using coal tar to prepare clean fuel oil by catalytic hydrogenation, comprising the following components in percentage by mass: 4 to 15 percent of molybdenum oxide, 3 to 9 percent of nickel oxide, 0.1 to 5 percent of cobalt oxide, 10 to 25 percent of tungsten oxide, 2.5 to 40 percent of silicon oxide and 26 to 65 percent of aluminium oxide. The preparation method of the catalyst comprises the following steps of: firstly, preparing a silicon oxide-aluminium oxide carrier, loading active components of Co, Mo, Ni and W on the carrier by an isosteric dipping method, drying, baking and forming. The catalyst can be used for the preparation of the clean fuel oil by catalytic hydrogenation of the coal tar, gasoline and diesel oil obtained from the prepared fuel oil after being separated respectively meet the national standard of 93# gasoline and 0# diesel oil.

Description

technical field [0001] The invention belongs to a catalyst, a preparation method and an application, in particular to a catalyst, a preparation method and an application for preparing clean fuel oil by catalytic hydrogenation of coal tar. Background technique [0002] With the rapid development of the world economy and China's economy, oil resources as fuel are becoming more and more tense, and the price of oil has remained high in recent years, providing a golden development opportunity for the coal chemical industry, which has been at a competitive disadvantage for a long time. my country is a large coal-producing country with abundant coal tar resources. Coal tar is a by-product of the production of blue carbon, coke and coal gasification. At present, the annual output is about 15 million tons. In addition to being used to extract chemical products, most of the medium / low temperature coal tar and a small amount of high temperature coal tar are burned extensively as fuel. ...

Claims

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Application Information

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IPC IPC(8): B01J23/888B01J37/02C10G49/04
Inventor 张晔赵亮富
Owner SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
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