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Variable pressure absorption separation system and method for supercritical water gasification hydrogen-making gas-phase product

A supercritical water gasification and separation system technology, applied in the field of supercritical water gasification hydrogen production, can solve the problem of wasting a large amount of pressure energy in the system, reduce operating costs and investment costs, realize automatic control, and improve separation effects Effect

Active Publication Date: 2020-06-02
XI AN JIAOTONG UNIV
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Problems solved by technology

[0004] In order to overcome the disadvantages of the above-mentioned prior art that can only perform gas separation under low pressure conditions and waste a large amount of pressure energy of the system, the purpose of the present invention is to provide a pressure swing absorption separation system and method for supercritical water gasification to produce hydrogen gas phase products, It can realize step-by-step pressure-swing absorption and separation of gas phase products under high pressure conditions, reduce the equipment cost of supercritical water gasification system, improve energy utilization efficiency, reduce energy input of gas phase product separation system, and realize high efficiency and high efficiency of gas phase products of supercritical water gasification system. low energy separation

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  • Variable pressure absorption separation system and method for supercritical water gasification hydrogen-making gas-phase product

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Embodiment Construction

[0030] The implementation of the present invention will be described in detail below in conjunction with the drawings and examples.

[0031] The present invention is a pressure-swinging absorption and separation system for gas-phase products of hydrogen production by supercritical water gasification, combined with the high-pressure characteristics of gas-phase products of hydrogen production by supercritical water gasification, making full use of the system pressure energy, and realizing step-by-step pressure transformation under high-pressure conditions Absorption and separation of gas phase products.

[0032] Such as figure 1 As shown, in Embodiment 1 of the present invention, a heat exchanger 2 is included, the hot fluid side inlet of the heat exchanger 2 is connected to the outlet of the supercritical water gasification reactor 1, and the hot fluid side outlet of the heat exchanger 2 is connected to the three-phase separator 3 The inlet connection of the reaction material...

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Abstract

The invention discloses a variable pressure absorption separation system for a supercritical water gasification hydrogen-making gas-phase product. An outlet of a supercritical water gasification reactor is connected to a hot fluid side inlet of a heat exchanger, a hot fluid side outlet of the heat exchanger is connected to an inlet of a three-phase separator, reaction materials enter the supercritical water gasification reactor along a cold fluid side of the heat exchanger, a liquid phase outlet and a solid phase outlet of the three-phase separator are connected to a subsequent unit, a gas phase outlet is connected to an inlet of a pressure regulator, an outlet of the pressure regulator is connected to an inlet of a high-pressure water absorber 1, a gas phase outlet of the high-pressure water absorber 1 is divided into two paths after passing through a gas path valve 1 and a gas pressure reducing valve in sequence, one path is connected to a high-purity H pipeline through a gas path valve 2, the other path is connected to an inlet of a depth separator through a gas path valve 3, and a liquid phase outlet of the high-pressure water absorber 1 is connected to an inlet of a CO2 resolver through a liquid pressure reducing valve, and a liquid phase outlet of the CO2 resolver is connected back to the high-pressure water absorber 1 through a waterway valve 1. According to the invention, step-by-step variable-pressure absorption and separation of a gas phase product can be realized under a high-pressure condition, and the energy utilization efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of hydrogen production by supercritical water gasification, and in particular relates to a pressure swing absorption separation system and method for gas phase products of hydrogen production by supercritical water gasification. Background technique [0002] With the depletion of fossil energy and the continuous deterioration of the environment, it is urgent to find a new type of non-polluting energy as a substitute for fossil fuels. The development of hydrogen energy has become a consensus in energy transition. Hydrogen energy has attracted people's attention because of its absolutely pollution-free combustion characteristics, so various hydrogen production processes have emerged as the times require. The general hydrogen production process or resource waste is serious, or the hydrogen production rate is low and cannot be widely promoted. However, the supercritical water gasification hydrogen production pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B3/50C01B3/52C10J3/00C10K1/00B01D53/18B01D53/14
CPCC01B3/508C01B3/506C01B3/50C10J3/00C10K1/002B01D53/18B01D53/1475C01B2203/0415C01B2203/0883Y02C20/40Y02P20/10Y02P20/54Y02P20/151
Inventor 王树众徐甜甜李艳辉李建娜张熠姝蒋卓航崔成超
Owner XI AN JIAOTONG UNIV
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