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Two-phase absorbent based flue gas carbon dioxide absorbing device

A carbon dioxide and absorption device technology, applied in the field of CO2 capture, can solve the problems of increasing the viscosity of the heavy phase at the bottom of the phase separator, and achieve the effect of reducing investment costs

Inactive Publication Date: 2018-06-26
ZHEJIANG UNIV
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  • Abstract
  • Description
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Problems solved by technology

Under low temperature conditions, the absorbent has a higher CO 2 load, but the lower temperature causes the viscosity of the heavy phase at the bottom of the phase separator to increase

Method used

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  • Two-phase absorbent based flue gas carbon dioxide absorbing device

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with specific examples.

[0028] Such as figure 1 As shown, the flue gas carbon dioxide absorption device includes a high-temperature absorption tower 1 and a low-temperature absorption tower 2 .

[0029] Wherein, a first phase separator 4 is installed at the bottom of the high-temperature absorption tower 1, and a first packing section 3 is installed in the middle of the tower. The flue gas inlet is set between the first packing section 3 and the first phase separator 4, and the top is provided with a flue gas outlet. Heavy phase export. The overall height of the high-temperature absorption tower 1 is 8m, and the height of the first packing section 3 is 4m. The high-temperature absorption tower 1 is made of fiberglass tower body material, and the first packing section 3 is made of corrugated plate structured packing, which is made of blended and pressed polypropylene grafted with hydrophilic groups...

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Abstract

The invention relates to a two-phase absorbent based flue gas carbon dioxide absorbing device. The two-phase absorbent based flue gas carbon dioxide absorbing device comprises a high-temperature absorption tower and a low-temperature absorption tower, wherein a flue gas inlet is formed in the lower part of the high-temperature absorption tower, and flue gas is fed to the lower part of the low-temperature absorption tower through a flue gas pipeline from the top; a first phase splitter is arranged on the bottom of the high-temperature absorption tower; light phase in the first phase splitter isfed to the upper part of the low-temperature absorption tower through a first absorbent pipeline; an inter-stage cooler is arranged on the first absorbent pipeline; a second phase splitter is arranged on the bottom of the low-temperature absorption tower; and light phase in the second phase splitter is fed to the upper part of the high-temperature absorption tower through a second absorbent pipeline. The device adopts a two-tower scheme, and reduces tower height, so that investment cost of the absorption tower is reduced.

Description

technical field [0001] The present invention relates to CO 2 In the field of capture, it specifically relates to a flue gas carbon dioxide absorption device based on a two-phase absorbent. Background technique [0002] Global warming poses severe challenges to human survival and social development, and is a major environmental problem that needs to be resolved urgently. To deal with global climate change, the key is to reduce the emission of greenhouse gases, especially carbon dioxide. At the World Climate Conference held in 2009, the Chinese government solemnly promised that by 2020, CO emissions per unit of GDP would 2 Compared with 2005, it has dropped by 40-45%, which has brought great challenges to related industries in our country. In many CO 2 Among emission reduction technologies, chemical absorption has been applied in industry. [0003] In recent years, liquid-liquid two-phase absorbents have been proposed to absorb CO 2 After that, a liquid-liquid two-layer ...

Claims

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Application Information

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IPC IPC(8): B01D53/78B01D53/62
CPCB01D53/62B01D53/78B01D2257/504Y02A50/20
Inventor 董文峰方梦祥王涛刘飞王勤辉骆仲泱
Owner ZHEJIANG UNIV
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