论文部分内容阅读
提出一种天然气基钙钛矿型氧化物化学链燃烧中温太阳能燃料转化方法,利用近400℃太阳热驱动天然气基的LaCu0.1Ni0.9O3化学链燃烧,将太阳能转化为高品位燃料化学能.新方法不仅能利用低焦比的槽式聚光吸收反应器,而且降低了太阳能天然气热化学互补反应热品位.采用热重实验,开展天然气基LaCu0.1Ni0.9O3反应与再生性能研究.研究结果表明:天然气-LaCu0.1Ni0.9O3化学链燃烧的还原温度为350℃,氧载体最大释氧量为22％,多次循环反应之后氧载体的晶格结构和表面形貌均没有发生明显的变化.本文为开展中温太阳能与天然气热化学互补利用提供了新途径.“,”We put forward a new method of fuel conversion by combining mid-temperature solar heat and chemical-looping combustion of natural gas perovskites as oxygen carriers,what uses solar heat of 400℃ to drive chemical-looping combustion of natural gas and LaCu0.1Ni0.9O3,and the solar heat is converted to high-grade fueled chemical energy.The new method not only uses lower-concentration-ration groove reactor,but also can reduce the heat grade of the thermochemical complementary reaction of solar energy and natural gas.Using thermogravimetric experiment to study the reactivity and regeneration of the LaCu0.1Ni0.9O3.The research results show that the reduction temperature of the chemical-looping combustion of natural gas and LaCu0.1Ni0.9O3 is 350℃,and the largest oxygen content of oxygen carrier releasing is 22％,no obvious change on the lattice structure and surface morphology of oxygen carrier after multiple redox cycles.Our study will provide a new approach of thermochemical complementary use of mid-temperature solar energy and natural gas.