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本文针对生物质能独特的碳氢结构特点以及现有生物质能应用技术存在的问题,提出了基于化学能、物理能梯级利用为基础的控制CO_2排放的多功能系统集成原则,即:化学能、物理能梯级利用原则,化学势能梯级利用以及分步转化原则,能量释放、迁移与CO_2控制一体化原则。并且基于这些原则给出了控制CO_2排放的多功能系统集成典型思维流程。在本文中提出一个生物质-天然气互补的控制CO_2排放的甲醇-动力串联型的多功能系统。采用商用流程模拟软件aspenpluss完成系统计算分析。结果表明,该多功能系统采用了双原料互补,适度重整反应机制,适度甲醇合成,分级转化合成气,系统层面控制CO_2等,不仅实现了20%的CO_2减排,同时在相同的化工产品与动力输出情况下可以节省原料输入5%～12%。该系统体现了本文所提出的控制CO_2排放的多功能系统集成原则,为生物质以及天然气的更高效利用提供了一条有效途径。
In this paper, according to the unique characteristics of biomass structure and existing problems of biomass application technology, a multi-functional system integration principle based on chemical energy and physical energy cascade control is proposed. That is, chemical energy , The principle of physical cascade utilization, the potential utilization of chemical potential cascade and the principle of stepwise conversion, the principle of energy release, migration and CO_2 control integration. And based on these principles, a typical thinking process of multi-functional system integration that controls CO 2 emission is given. In this paper, we propose a methanol-powered tandem multi-functional system with biomass-natural gas complementary control of CO 2 emissions. Using commercial process simulation software aspenpluss to complete the system calculation and analysis. The results show that the multifunctional system not only achieves 20% reduction of CO 2 emission but also uses the same chemical products, which are complemented by two raw materials, moderate reforming reaction mechanism, moderate methanol synthesis, staged conversion of synthesis gas, and control of CO 2 at the system level. With power output can save raw materials input 5% ~ 12%. The system embodies the principle of integrated multi-functional system proposed in this paper to control CO 2 emissions and provides an effective way for more efficient utilization of biomass and natural gas.