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Circulating hydrogen recycling system and method

A recovery system and a technology for circulating hydrogen, applied in the field of chemical production, can solve the problems of high cost and low efficiency of circulating hydrogen recovery

Inactive Publication Date: 2018-11-23
JINAO HUBEI SCI & TECH CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In order to overcome the deficiencies of related products in the prior art, the present invention proposes a circulating hydrogen recovery system to solve the problems of high cost and low efficiency of current circulating hydrogen recovery

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  • Circulating hydrogen recycling system and method
  • Circulating hydrogen recycling system and method

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Embodiment Construction

[0033]In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Apparently, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments, and the preferred embodiments of the present invention are shown in the accompanying drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein, on the contrary, these embodiments are provided for the purpose of making the disclosure of the present invention more thorough and comprehensive. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the presen...

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Abstract

The invention discloses a circulating hydrogen recycling system and method, which relates to the technical field of chemical production. The circulating hydrogen recycling system comprises a feeding pump, a circulating hydrogen compressor, a circulating hydrogen liquid distribution tank, a raw material and product heat exchanger, a heating furnace, a hydrogenation reactor, an air cooler, a gas-liquid separator and a membrane separator; the feeding pump, the raw material and product heat exchanger, the heating furnace and the hydrogenation reactor are successively connected with one another, the circulating hydrogen liquid distribution tank is separately connected with the circulating hydrogen compressor, the gas-liquid separator and the membrane separator; one end of the circulating hydrogen compressor is connected with the circulating hydrogen liquid distribution tank, and the other end is separately connected with the raw material and product heat exchanger as well as the membrane separator; and the hydrogenation reactor is successively connected with the air cooler and the gas-liquid separator by virtue of the heating furnace. By adopting the circulating hydrogen recycling system and method, the consumption for discharging the circulating hydrogen to a fuel air pipe net can be avoided, and no additional fresh hydrogen is required for the circulating hydrogen system, so thatthe efficiency is improved, and the cost is effectively reduced.

Description

technical field [0001] The invention relates to the technical field of chemical production, in particular to a recycling system and method for hydrogen recycling. Background technique [0002] In order to ensure that the quality of refined oil meets the National V standard, the country requires that the sulfur content in refined oil is less than 10ppm, so it is necessary to desulfurize and lighten crude oil, among which hydrofining and upgrading are the key to deep desulfurization and lightening of crude oil important means. In the process of hydrofining or upgrading, a large amount of hydrogen is put into production. Due to the problem of hydrogenation efficiency, the recovered hydrogen after hydrogenation reaction must be recycled to avoid waste. However, in the process of hydrogen recovery, many by-product hydrocarbons are recovered at the same time, so they must be discharged in the process production to ensure the purity of recovered hydrogen, that is, the purity of re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G45/00C10G45/02C10G47/00C10G49/00C01B3/50
CPCC01B3/50C01B3/503C10G45/00C10G45/02C10G47/00C10G49/00C10G2300/202
Inventor 舒心
Owner JINAO HUBEI SCI & TECH CHEM IND
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