据世界天然气网7月19日消息 日本碳捕获与再利用（CCR）研究小组的船舶碳回收工作组（WG）证实，甲烷化技术产生的碳回收甲烷可以被认定为零排放船舶燃料。
最新一期《日本海洋工程研究所学报》刊登了一篇技术论文，详细介绍了工作组进行的计算程序和评估。
甲烷化是一种合成甲烷的技术，甲烷是天然气的主要成分，通过在装有催化剂的反应器容器中引起氢气和二氧化碳之间的化学反应，使用从工业设施中分离和捕获的排放的二氧化碳。由于燃烧合成甲烷时产生的二氧化碳被分离和捕获的二氧化碳抵消，预计通过使用电解水产生的氢气和来自可再生能源的电力，可以显著减少二氧化碳排放。
碳循环利用是捕获和再利用排放的二氧化碳的过程，作为实现碳中和社会的途径之一，其重要性日益凸显。
为探讨将甲烷化技术用于零排放船舶燃料的可行性，工作组在日本CCR研究小组内成立，并于2020年7月开始研究。
吴恒磊 编译自 世界天然气
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 align="justify"> 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.