摘要
等离子裂解煤制乙炔工艺是一种处于试验阶段的新型煤化工路线。系统的节能、平稳运行对新工艺的经济性和可行性至关重要。本文基于夹点技术对煤制乙炔全流程进行了用能分析和诊断,得出了最优的能量利用目标;在考虑实际约束的情况下提出2套换热方案。进一步,利用路径法得出两套换热方案的传递函数,由此建立了动态仿真模型,进而得到2套换热方案对扰动的动态响应特性;在对传递函数进行分析的基础上,发现影响换热网络动态性能的公用工程位置和单个换热器换热充分度2个因素。结果表明,方案1和方案2均具有较好的动态性能,能够保障节能方案的平稳运行。
The technique of coal pyrolysis to acetylene in hydrogen plasma reactor is a new coal chemical route at experimental stage. The energy conservation and smooth operation is significant to the economic and feasibility of the new technique. This article analyzes and diagnoses the energy consumption to the whole process of coal pyrolysis to acetylene system, with pinch point technique. Two cases were proposed with the consideration of practical constraints. The transfer functions of two cases were got by the route method to establish the dynamic model, and the dynamic characteristics under disturbance of two cases were got. On the basis of analysis of transfer functions, two factors are found, which are the position of common facilities and the heat exchanging extent of single heat exchanger, which can influence the dynamic characteristics. The result shows that case one and case two are both good in dynamic characteristics, they can protect the smooth operation of energy conservation program.
出处
《计算机与应用化学》
CAS
CSCD
北大核心
2011年第7期801-806,共6页
Computers and Applied Chemistry
基金
国家高技术研究发展计划项目(2009AA04ZX1485932)
关键词
煤制乙炔
热集成设计
动态性能分析
coal pyrolysis to acetylene, heat integration, dynamics characteristics analysis
