據世界天然氣網7月19日消息 日本碳捕獲與再利用（CCR）研究小組的船舶碳回收工作組（WG）證實，甲烷化技術產生的碳回收甲烷可以被認定為零排放船舶燃料。

　　最新一期《日本海洋工程研究所學報》刊登了一篇技術論文，詳細介紹了工作組進行的計算程序和評估。

　　甲烷化是一種合成甲烷的技術，甲烷是天然氣的主要成分，通過在裝有催化劑的反應器容器中引起氫氣和二氧化碳之間的化學反應，使用從工業設施中分離和捕獲的排放的二氧化碳。由于燃燒合成甲烷時產生的二氧化碳被分離和捕獲的二氧化碳抵消，預計通過使用電解水產生的氫氣和來自可再生能源的電力，可以顯著減少二氧化碳排放。

　　碳循環利用是捕獲和再利用排放的二氧化碳的過程，作為實現碳中和社會的途徑之一，其重要性日益凸顯。

　　為探討將甲烷化技術用于零排放船舶燃料的可行性，工作組在日本CCR研究小組內成立，并于2020年7月開始研究。

　　吳恒磊 編譯自 世界天然氣

　　原文如下：

　　Study: Carbon recycled methane can be recognized as zero-emission ship fuel

　　Carbon recycled methane produced by methanation technology can be recognized as zero-emission ship fuel, the Ship Carbon Recycling Working Group (WG) of Japan’s Carbon Capture & Reuse (CCR) Study Group has /confirm/ied.

　　A technical paper describing the details of the calculation procedure and evaluation conducted by the WG has been published in the latest issue of the journal of the Japan Institute of Marine Engineering.

　　Specifically, methanation is a technology for synthesizing methane, the main component in natural gas, by causing a chemical reaction between hydrogen and CO2 in a reactor vessel filled with a catalyst. It uses emitted CO2 separated and captured from industrial facilities. As the CO2 generated when combusting synthesized methane is considered to be offset by the separated and captured CO2, it is expected that CO2 emissions can be significantly reduced by using hydrogen generated by electrolyzing water with electricity derived from renewable energy.

　　Carbon recycling, which is the process of capturing and reusing emitted CO2, is becoming increasingly important as one of the pathways to realize a carbon-neutral society.

　　To explore the feasibility of the concept of utilizing methanation technology for zero-emission ship fuels, the WG was formed within Japan’s CCR Study Group, and started its activity in July 2020.

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