Reactor Network Synthesis Of Complex Reaction System

The reaction process development and optimization of process industry is ofgreat significance. The pros and cons of reaction process technology not onlydetermines the reaction process itself, but also influence the separation process andthe utility subsystem. At the same time, due to the environmental problems are oftenclosely related to the reaction process, so it also affects the environmental effect ofprocess synthesis. As the basis of reaction process development and optimizationdesign, many scholars have done a lot of research work in reactor network synthesisresearch and some progress has been made. But for the reactor network synthesisproblems of complex reaction system, further in-depth study and discussions alsoneed to be done.This article reviews the research progress of reactor network synthesis, andrecognizes the importance of developing new reactor network synthesis method. Thispaper bases on reactor network as the main research object, from the understanding ofreaction mechanism of reaction process, to the point of view of optimize. The reactornetwork synthesis problems of complex reaction systems are analyzed. And thethree-step strategy and steps based on derivative comprehensive analysis of reactionprocess-the segmented derivative method and steps are developed and complete. Thismethod is applied in reactor network synthesis research of petroleum sulfonatesulfonation reaction system and TDI synthesis of phosgenation reaction system.Through the test of different reactor network structures of petroleum sulfonatereaction system, to verify the validity of the segmented derivative analysis.(1) For the Ⅲ complex reaction system, the segmented derivative analysis issimplified, developed and perfected on the basis of predecessors’ work. Newthree-step strategy and analysis steps are proposed and the segmented derivativeanalysis is more convenient. At the same time, it also can be more widely applied toall types of reactor network synthesis of complex reaction system. It is also a simpleand effective methods of qualitative analysis to the reactor network synthesis of complex reaction systems.(2) The new segmented derivative analysis method is applied in complexreaction system-sulfonation reaction system of petroleum sulfonate production.Analyzing the reaction mechanism of complex reaction system, using different waysof segmentation, and using two kinds of derivative analysis, the derivatives of the firstreaction phase and second reaction phase are analyzed. The results of two kinds ofderivative analysis methods are the DSR reactor.(3) Through the experiment of the sulfonation, the effect of PFR and DSR withdifferent acid oil ratio on the sulfonation reaction are inspected. Results show thatunder the same acid oil, the content of active materials in DSR reactor is higher thanPFR; less side effects in DSR; sulfonating agent and raw oil react more fully；singlesulfonate as an active role of active materials content is higher. The experimentalresults further verify the effectiveness of the segmented derivative analysis.Segmented derivative analysis results are not only helps the reactor networkoptimization, but also contribute to the understanding of reactions’ characteristics, soas to guide reaction process technology development.(4) The new segmented derivative analysis method is applied to the reactor network synthesis of TDI phosgenation reaction system. Reaction mechanism of thecomplex reaction system is analyzed, and the reaction system is segmented.Analyzing the first stage and second stage reaction system for derivative analysisrespectively, the optimal reactor network results of the DSR is deduced.