Journal of CO2 Utilization ( IF 7.7 ) Pub Date : 2017-09-28 , DOI: 10.1016/j.jcou.2017.08.021 Wataru Kawasaki , Hidenori Kato , Ratchahat Sakhon , Ryo Watanabe , Choji Fukuhara
The dry reforming of methane (DRM) is an important reaction process for producing useful synthesis gas from greenhouse gases such as CO2 and CH4. The objective of this study was to develop a combined system that continuously produced of synthesis gas (via dry reforming) and captured post-reformer carbon solids (via carbon capture). The relationship between the DRM reaction condition and the carbon deposition phenomena at the capture stage was investigated. The Ni/Al2O3 structured catalyst showed high DRM activity and stability under the conditions of CO2/CH4 ≥ 1.2 at 700 °C, whereas the most effective conditions for carbon capture occurred at 520–650 °C when the ratio of CO2/CH4 = 1.0. The carbon morphology (e.g., carbon nanotubes and nanofibers) also changed as a function of the capturing temperature. This constructed system would be a novel technology for the effective utilization of CO2 and CH4.
中文翻译:
结合碳捕集的新型合成气生产系统的开发
甲烷的干重整(DRM)是从温室气体如CO 2和CH 4产生有用的合成气的重要反应过程。这项研究的目的是开发一种组合系统,该系统可连续生产合成气(通过干重整)并捕获重整后的碳固体(通过碳捕获)。研究了DRM反应条件与捕集阶段碳沉积现象之间的关系。在Ni / Al的2 ö 3结构化催化剂表现出CO的条件下具有高DRM活性和稳定性2 / CH 4 ≥1.2在700℃,而对于碳捕获的最有效的条件下发生在520-650℃下时的比一氧化碳2 / CH 4 = 1.0。碳形态(例如,碳纳米管和纳米纤维)也随捕获温度而变化。该构建的系统将是有效利用CO 2和CH 4的新技术。