化学链基础理论及其在节能减排中的应用

Fundamental principles and its application of chemical looping in the field of energy-saving and emission reduction

化学链是一种新型的化学转化和能源利用技术。该技术是将传统的化学转化过程解耦为两个或多个反应过程,以实现资源的高效利用和物质的低耗分离。因此,化学链本质上是一种反应-分离过程耦合的过程强化技术。本文在回顾化学链发展历程的基础上,凝练出了化学链的理论内涵及其关键技术,并给出了化学链的化学载体基本特性和反应器选择方案。最后介绍了包括化学链燃烧、化学链气化等化学链过程在节能减排中主要应用。

Chemical looping is a new type of chemical conversion and energy utilization technology. It decouples the traditional chemical conversion process into multiple sub-reactions process, in order to realize high efficient utilization of resources and materials separation with low consumption. As a result, essentially the chemical looping is a process intensification technology coupling reaction-separation process. On the basis of look back on the development process of chemical looping, the Fundamental principles and key technologies of chemical looping was summarized. To building a novel chemical looping process, the basic characteristics of looping carrier and the requirement for reactors was elaborated. Finally, the application of chemical looping combustion, gasification and for hydrogen generation on the energy-saving and emission reduction was introduced.