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Comprehensive utilization system and process for hydrogen production by gasification of oil shale refining integrated associated coal

A technology for shale oil, gas and oil shale, which is applied in the field of oil shale oil refining integrated associated coal gasification and hydrogen production comprehensive utilization system, can solve the problems of serious environmental pollution, complex system, huge gasification volume, etc., and achieves the saving of coal resources. Effect

Active Publication Date: 2014-11-19
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There are many main problems, such as gasification products are carbon-rich gases with low hydrogen content; serious environmental pollution; coal with high moisture content needs to be pretreated; gasification volume is large, the system is complicated, and the investment cost is too high

Method used

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  • Comprehensive utilization system and process for hydrogen production by gasification of oil shale refining integrated associated coal

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Embodiment 1

[0081] The specific implementation of the oil shale and associated coal comprehensive utilization technology of the present embodiment is as follows:

[0082] The flow rate of raw shale entering the process of the present invention is 322.5t / h, of which 275t / h enters the dry distillation furnace, and the flow rate of clastic shale is 47.5t / h. The water vapor to air mass ratio in the gasification section of the retort furnace is 1.13. The feed rate of lignite is 33.91t / h. The industrial analysis and elemental analysis of oil shale and lignite are shown in Table 1. The process flow chart of the comprehensive utilization process of oil shale oil refining integrated associated coal gasification for hydrogen production is shown in figure 2 .

[0083] Table 1 Elemental analysis of industrial analysis of oil shale and lignite

[0084]

[0085] (M, FC, V, and A in the table represent the contents of water, fixed carbon, volatile matter and ash in oil shale respectively, ar rep...

Embodiment 2

[0098] The specific implementation of the oil shale and associated coal comprehensive utilization technology of the present embodiment is as follows:

[0099] The flow rate of raw material shale entering the process of the present invention is 375t / h, of which 300t / h enters the carbonization furnace, and the flow rate of clastic shale is 75t / h. The water vapor to air mass ratio in the gasification section of the retort furnace is 1.20. The feed rate of lignite is 48.36 t / h. The industrial analysis and elemental analysis of oil shale and lignite are shown in Table 2. The process flow chart of the comprehensive utilization process of oil shale oil refining integrated associated coal gasification for hydrogen production is shown in figure 2 .

[0100] Table 2 Elemental analysis of industrial analysis of oil shale and lignite

[0101]

[0102] (M, FC, V, and A in the table represent the contents of water, fixed carbon, volatile matter and ash in oil shale respectively, ar ...

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Abstract

The invention discloses a comprehensive utilization system and process for hydrogen production by gasification of oil shale refining integrated associated coal. The system comprises an oil shale dry distillation unit, a shale oil-gas separation unit, a shale oil hydrogenation upgrading unit and a separator which are sequentially connected and further comprises a combustion furnace, a coal supercritical water gasification unit, a heat exchanger, a hydrogen purification unit and a construction material production unit. According to the comprehensive utilization system and process disclosed by the invention, oil shale fragments discarded from the oil shale dry distillation unit and excess residual coal gas provide heat to the coal supercritical water gasification reaction, the coal resources with relatively high calorific value and high economic value for maintaining the coal supercritical water gasification reaction are saved, shale associated brown coal can be utilized in an integrated mode to produce high-economic-value hydrogen and the allocation of resources is optimized and meanwhile, the economic efficiency of the process is improved.

Description

technical field [0001] The invention belongs to the technical field of energy and chemical industry, and in particular relates to a comprehensive utilization system and process for oil shale oil refining integrated hydrogen production with associated coal gasification. Background technique [0002] With the rapid development of our country's society and economy, the demand for energy is increasing day by day. In order to reduce the dependence on imported oil, my country is actively implementing a diversified energy strategy to ensure the continuous supply of energy. Oil shale is a sedimentary rock with a skeleton of inorganic minerals and contains solid organic matter. It is a low calorific value solid fossil fuel. my country's oil shale resources are very rich, with reserves of 719.9 billion tons, which is equivalent to 47.6 billion tons of dry distillation oil, which is much higher than the proven reserves of crude oil of 2.2 billion tons. my country not only has abundan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B53/06C10G67/02C10J3/46C01B3/56
CPCY02P20/54
Inventor 钱宇杨庆春杨思宇
Owner SOUTH CHINA UNIV OF TECH
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