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Coal-pyrolysis-upgrading-based oil product hydrofining system and technique

A technology for hydrorefining and coal pyrolysis, which is applied in the petroleum industry, hydrogen separation, hydrogen sulfide, etc., can solve the problems of difficult hydrogen source, low tar and gas production, and waste oil dumping, etc. The effect of source-to-source puzzles

Pending Publication Date: 2017-09-05
北京中矿科能煤炭地下气化技术研究中心
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Problems solved by technology

However, the production of tar and gas is relatively small, and how to efficiently utilize tar and gas has become a problem
[0003] With the development of the country's economy, the output of waste engine oil is also increasing. These waste engine oils are either dumped, incinerated, or refined by local methods. This has caused serious environmental pollution on the one hand, and caused huge waste of resources
Among them, the hydrofining of waste engine oil to obtain non-standard diesel oil is an efficient way, but the source of hydrogen is difficult to restrict the regeneration of waste engine oil

Method used

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0015] The system of the present invention includes: coal drying furnace 1, coal pyrolysis upgrading furnace 2, gas combustion chamber 6, water recovery system 8, CDQ chamber 7, cold pressing forming unit 9, gas purification unit 3, pressure swing adsorption hydrogen production Unit 4, oil hydrorefining unit 5, flue gas induced draft fan 10, and air blower 11.

[0016] A system and process for oil hydrofining based on coal pyrolysis and upgrading, the coal outlet of the coal drying furnace 1 is connected to the coal inlet of the coal pyrolysis upgrading furnace 2; the blue coal outlet of the coal pyrolysis upgrading furnace 2 It is connected with the blue carbon inlet of the CDQ chamber 7; the blue carbon outlet of the CDQ chamber 7 is connected with the blue carbon inlet of the cold pressing forming unit 9; the flue gas outlet of the gas combustion cha...

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Abstract

The invention relates to a coal-pyrolysis-upgrading-based oil product hydrofining system and technique. The hydrofining system comprises a coal drying furnace, a coal pyrolysis upgrading furnace, a coal gas combustion chamber, a water recovery system, a dry quenching chamber, a cold press molding unit, a coal gas purification unit, a pressure swing adsorption hydrogen production unit, an oil product hydrofining unit, a flue gas induced draft fan, an air blower and the like. In the system, semi-coke generated by coal pyrolysis is subjected to cold press molding to prepare formed coke, the generated pyrolysis gas is subjected to pressure swing adsorption hydrogen production to provide a hydrogen source for oil product desulfurization refinement, and purge gas returns to the furnace and is combusted so as to provide heat for coal drying and pyrolysis, thereby implementing a virtuous cycle. The two systems of coal pyrolysis and oil product hydrofining are combined, and the hydrogen in the pyrolysis gas is enriched to provide the hydrogen source for oil product hydrofining, thereby solving the problems of application of pyrolysis gas of coal pyrolysis and the hydrogen source for oil product hydrofining.

Description

technical field [0001] The invention relates to an oil hydrofinishing system and process based on coal pyrolysis upgrading, and belongs to the technical field of low-rank coal upgrading and waste engine oil hydrofining. Background technique [0002] Coal is the main energy source in my country, accounting for about 70% of the primary energy structure, and low-rank coal reserves account for more than 55% of the country's proven coal reserves. Therefore, it is very important to improve the quality of low-rank coal to obtain tar, gas and semi-coke, and realize the step-by-step utilization of coal resources. However, the production of tar and gas is relatively small, and how to efficiently utilize tar and gas has become a difficult problem. [0003] With the development of the country's economy, the output of waste engine oil is also increasing. These waste engine oils are either dumped, burned, or refined by local methods. This has caused serious environmental pollution on the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B53/00C10B57/10C10B57/00C10B47/00C10K1/12C10G45/02B01D53/047C01B3/56C01B17/16
CPCB01D53/047C10B47/00C10B53/00C10B57/005C10B57/10C10G45/02C10K1/121C01B3/56C01B17/16C01B2203/042C10G2300/1007
Inventor 李文军刘美英黄磊黄家辉龙葵
Owner 北京中矿科能煤炭地下气化技术研究中心
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