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Coal-based military fuel and preparation method thereof

A military fuel, coal-based technology, applied in the field of coal chemical industry, can solve the problems of long process, complicated operation, and difficulty in processing inferior naphthenic coking distillate oil.

Inactive Publication Date: 2013-09-18
CHINA COAL RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantage of this technology is that the process is long and the operation is complicated
Due to the use of an acidic catalyst, this method has certain requirements on the nitrogen content of the feedstock oil, so it is not suitable for all coking gasoline and diesel raw materials, and it is also difficult to deal with inferior naphthenic coking distillates

Method used

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  • Coal-based military fuel and preparation method thereof
  • Coal-based military fuel and preparation method thereof
  • Coal-based military fuel and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] A low-temperature coal tar is used as raw material. After pretreatment, the purified coal tar is distilled and cut into light distillate oil 370°C. The heavy distillate oil >370°C is a suspended bed See Table 1 for properties of hydrocracking feedstock oil and coal tar whole distillate feedstock oil. After hydrocracking and lightening of heavy distillate oil, light oil and coal tar distillation and separation of light distillate oil can be obtained after hydrofining 3# jet fuel, battlefield general fuel, rocket kerosene and high specific gravity jet fuel, etc. Products, the main process conditions of each process unit are shown in Table 2, and the main properties of each military fuel product are shown in Table 3.

[0073] The test was carried out on a 0.2 ton / day suspended bed hydrogenation test device. The hydrocracking unit used two suspended bed reactors in series, and the deep hydrofining unit used two fixed bed reactors in series.

Embodiment 2

[0075]A medium-temperature coal tar is used as raw material. After pretreatment, the purified coal tar is distilled and cut into light distillates below 350°C and heavy distillates above 350°C. The heavy distillate above 350°C is a suspended bed See Table 1 for properties of hydrocracking feedstock oil and coal tar whole distillate feedstock oil. After hydrocracking and lightening of heavy distillate oil, light oil and coal tar distillation and separation of light distillate oil can be obtained after hydrofining 3# jet fuel, battlefield general fuel, rocket kerosene and high specific gravity jet fuel, etc. Products, the main process conditions of each process unit are shown in Table 2, and the main properties of each military fuel product are shown in Table 4.

[0076] The test was carried out on a 0.2 ton / day suspended bed hydrogenation test device. The hydrocracking unit used two suspended bed reactors in series, and the deep hydrofining unit used two fixed bed reactors in s...

Embodiment 3

[0078] A kind of medium and low temperature coal tar is used as raw material. After pretreatment, the purified coal tar is distilled and cut into light distillate oil below 370°C and heavy distillate oil above 370°C. The heavy distillate oil above 370°C is Table 1 shows the properties of the raw material oil of the raw material for suspension bed hydrocracking, and the properties of the whole distillate raw oil of coal tar. The light oil fraction after hydrocracking of heavy distillate oil and the light oil fraction separated by coal tar distillation can be hydrotreated together to obtain 3# jet fuel, common battlefield fuel, rocket kerosene and high specific gravity jet fuel and other products , the main process conditions of each process unit are shown in Table 2, and the main properties of each military fuel product are shown in Table 5.

[0079] The test was carried out on a 0.2 ton / day suspended bed hydrogenation test device. The hydrocracking unit used two suspended bed ...

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Abstract

The invention discloses a coal-based military fuel and a preparation method thereof. The method comprises the steps of: (1) carrying out distillation cutting on raw oil so as to obtain a light oil fraction and a heavy oil fraction; (2) uniformly mixing a catalyst, a vulcanizing agent and solvent oil so as to prepare catalyst-oil slurry, mixing the catalyst-oil slurry, the heavy oil fraction and circulating oil with the catalyst, carrying out hydrocracking, obtaining a liquid-solid mixture after a reaction product is subjected to separation, and obtaining light oil fraction after the liquid-solid mixture is subjected to separation; and (3) carrying out hydrofining or selective hydrofining on the light oil fraction obtained in the step (1) and the light oil fraction obtained in the step (2), and enabling the obtained oil to enter a fractionating tower for product fractionation after the obtained oil is subjected to cooling and gas-liquid separation, thereby obtaining the military fuel. According to the method, the scope of application is wide, the process flow is reasonable, the raw material utilization ratio is high, the varieties of products are multiple, and the operation is flexible, so that the method can be applied to the mass production of various special oils.

Description

technical field [0001] The invention belongs to the field of coal chemical industry, relates to a production method of military fuel and prepared coal-based military fuel, more specifically relates to a method for producing various military fuels by using coal tar, and is also suitable for direct liquefaction of coal to generate A method for co-refining oil and kerosene to produce various military fuels. Background technique [0002] my country produces about 25 million tons of coal-derived oil every year, and it is increasing at an annual rate of 10% (mainly due to the growth of new coal chemical industry). A large amount of unprocessed derivative oil is directly burned as fuel, which not only causes waste of resources, but also causes serious damage to the environment. The technology of using derived oil to prepare coal-based military fuel will help reduce the dependence on imported oil, and also has important strategic significance for ensuring my country's energy securi...

Claims

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Application Information

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IPC IPC(8): C10G67/00
Inventor 张晓静胡发亭朱肖曼毛学锋王雨颜丙锋黄澎谷小会张帆钟金龙孙竟晔李伟林陈来夫
Owner CHINA COAL RES INST
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