Carbon dioxide capture system of LNG (Liquefied Natural Gas) ship

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Carbon dioxide capture system of LNG (Liquefied Natural Gas) ship

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WANG LIDONG / MEI RONGBING / CHENG XIAO'OU / SONG QIAO / XIONG YUNXIA / JIANG DEZHI / ZHANG XINXIN / SHI ZHENQIANG / ZHAO LEI / WANG ZHE

Abstract

According to the carbon dioxide capture system of the LNG ship, BOG gas in an LNG storage cabin enters an LNG buffer tank through a BOG preheater, a BOG compressor and a BOG after-cooler in sequence, and the BOG gas is supplied to a power device; carbon dioxide waste gas generated by the power device is absorbed by the carbon dioxide absorption tower, an organic amine rich solution is formed in the carbon dioxide absorption tower, the organic amine rich solution sequentially passes through the first heat exchanger, the carbon dioxide separation tower and the second heat exchanger, and formed high-purity carbon dioxide enters the carbon dioxide storage bin. The carbon dioxide separation tower is connected with a heater, passes through the first heater through a pipeline and returns to the carbon dioxide absorption tower. According to the system, the organic amine solution is cooled by cold energy released in the process of taking BOG as fuel, so that the low-temperature organic amine solution reacts with carbon dioxide, the carbon dioxide is captured, the high-quality cold energy released in the BOG heating process is effectively utilized to cool the organic amine solution, the energy consumption is reduced, and the fuel is saved.

一种LNG船的二氧化碳捕捉系统，LNG储存舱中的BOG气体依次经由BOG预加热器、BOG压缩机、BOG后冷却器进入LNG缓冲罐，将BOG气体供给动力装置；动力装置产生的二氧化碳废气被二氧化碳吸收塔吸收，在二氧化碳吸收塔内形成有机胺富液，有机胺富液依次经由第一热交换器、二氧化碳分离塔、第二热交换器，形成的高纯度二氧化碳进入二氧化碳储舱。二氧化碳分离塔连接有加热器，二氧化碳分离塔通过管路经由第一加热器，返回至二氧化碳吸收塔。本系统利用以BOG作为燃料过程中释放的冷能对有机胺溶液进行冷却，使低温有机胺溶液与二氧化碳发生反应，捕捉二氧化碳，有效利用BOG加热过程中释放的高质量冷能实现对有机胺溶液的冷却，降低了能量消耗，节省了燃料。

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Titel :

Carbon dioxide capture system of LNG (Liquefied Natural Gas) ship

Weitere Titelangaben:

一种LNG船的二氧化碳捕捉系统

Beteiligte:

WANG LIDONG (Autor:in) / MEI RONGBING (Autor:in) / CHENG XIAO'OU (Autor:in) / SONG QIAO (Autor:in) / XIONG YUNXIA (Autor:in) / JIANG DEZHI (Autor:in) / ZHANG XINXIN (Autor:in) / SHI ZHENQIANG (Autor:in) / ZHAO LEI (Autor:in) / WANG ZHE (Autor:in)

Erscheinungsdatum :

2024-02-13

Medientyp :

Patent

Format :

Elektronische Ressource

Sprache :

Chinesisch

Klassifikation :

IPC:

B01D SEPARATION , Trennen / B63J Hilfsanlagen auf Schiffen , AUXILIARIES ON VESSELS / C01B NON-METALLIC ELEMENTS , Nichtmetallische Elemente

Carbon dioxide capture system of LNG (Liquefied Natural Gas) ship

Carbon dioxide capture system of LNG (Liquefied Natural Gas) ship

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