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Integrated refining system and process using oil shale retorting gas to produce hydrogen and upgrade

A technology of oil shale and retort gas, which is applied in the petroleum industry, special form of retort, hydrogen, etc., can solve the problems of low utilization of clastic shale, lower process economic benefits, and low calorific value of residual gas, so as to improve Resource utilization, reduce production costs, and solve the effects of underutilization

Inactive Publication Date: 2014-08-27
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The following problems exist in the traditional oil shale refining process: (1) The residual gas produced by the retort furnace has a low calorific value and can only be used as fuel for boilers or internal combustion engines instead of commercial gas, and its utilization value is not high; (2) Oil shale The clastic shale produced in the dry distillation process is not highly utilized, and about 25% of the clastic shale has a particle size of less than 10mm, which is discharged as waste and directly used for the production of building materials; (3) the current market price of hydrogen is relatively high, and the use of Purchasing hydrogen as a hydrogen source for shale oil hydrotreating and upgrading will undoubtedly increase the production cost of the process and reduce the economic benefits of the process

Method used

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  • Integrated refining system and process using oil shale retorting gas to produce hydrogen and upgrade
  • Integrated refining system and process using oil shale retorting gas to produce hydrogen and upgrade
  • Integrated refining system and process using oil shale retorting gas to produce hydrogen and upgrade

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Embodiment 1

[0054] The specific implementation of the integrated refining process for hydrogen production and upgrading of oil shale dry distillation gas in this embodiment is as follows:

[0055] The flow rate of raw material shale entering the process of the present invention is 300t / h, of which 225t / h enters the dry distillation furnace, and the flow rate of clastic shale is 75t / h. The circulation rate of CaO is 44.4t / h, and the flow rate of steam is 38.02t / h. The industrial analysis and elemental analysis of oil shale are shown in Table 1.

[0056] Table 1 Elemental analysis of industrial analysis of oil shale

[0057]

[0058] The ar in the table indicates that the base is received.

[0059] The flow chart of the integrated refining process for hydrogen production and upgrading of oil shale retort gas is as follows: figure 2 and image 3 Shown:

[0060] The integrated refining system includes an oil shale dry distillation unit 1, a shale oil hydro-upgrading unit 2, a methane...

Embodiment 2

[0070] The specific implementation of the integrated refining process for hydrogen production and upgrading of oil shale dry distillation gas in this embodiment is as follows:

[0071] The flow rate of raw material shale entering the process of the present invention is 400t / h, of which 300t / h enters the carbonization furnace, and the flow rate of clastic shale is 100t / h. The circulation rate of CaO is 60.5t / h, and the flow rate of steam is 55.75t / h. The industrial analysis and elemental analysis of oil shale are shown in Table 2.

[0072] Table 2 Elemental analysis of industrial analysis of oil shale

[0073]

[0074]

[0075] The ar in the table indicates that the base is received.

[0076] The flow chart of the integrated refining process for hydrogen production and upgrading of oil shale retort gas is as follows: figure 2 and image 3 Shown:

[0077] The integrated refining system includes an oil shale dry distillation unit 1, a shale oil hydro-upgrading unit 2, a...

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Abstract

The invention discloses an integrated refining system and process using an oil shale retorting gas to produce hydrogen and upgrade. The system comprises an oil shale destructive distillation unit, a shale oil hydrogenation and upgrading unit, a methane vapor reforming unit and a building material production unit, wherein the methane vapor reforming unit comprises a vapor reforming reactor, a CaO regenerative combustion furnace, a compression heat exchanger, a vapor reforming gas flash-evaporation tower and a transformation adsorption device. According to the system and process disclosed by the invention, methane reforming reaction is carried out onto the destructive distillation gas, a hydrogen source is provided for shale oil hydrogenation and upgrading, complementary utilization of the destructive distillation gas and the shale oil hydrogen element is realized, and waste fragment shale of the oil shale destructive distillation unit is combusted to provide heat for roasting CaCO3 in the CaO regenerative combustion furnace, so that utilization efficiency of resources and energy resources is improved. According to the system and process disclosed by the invention, economic benefits of the existing oil shale oil-refining and upgrading processes can be remarkably improved, resource utilization rate of the process is increased, and emission of solid waste and an industrial waste gas is reduced.

Description

technical field [0001] The invention belongs to the technical field of energy and chemical industry, and in particular relates to an integrated refining system and process for producing hydrogen and upgrading oil shale dry distillation gas. Background technique [0002] As the global oil demand continues to rise and the contradiction between oil supply and demand becomes increasingly severe, it is imperative to find alternative energy sources for oil. Oil shale is widely valued by countries all over the world because of its abundant reserves and feasibility of development and utilization. It is recognized as one of the most potential oil substitute resources. According to the latest statistics, converting the world's proven oil shale into 3 trillion barrels of shale oil is equivalent to 1.8 times the current proven crude oil reserves. my country not only has abundant oil shale reserves, but also has relatively shallow burial, which is conducive to the development and utiliz...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B53/06C01B3/48C01B3/56C10G47/00
Inventor 杨思宇张俊钱宇
Owner SOUTH CHINA UNIV OF TECH
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