基于混合互补机理的多杂质质量交换网络集成研究

In Mass Exchange Network (MEN) with multiple impurities, more than one source can be matched with a sink. If these sources have mixed-complementary, their mixture can be matched with the corresponding sink with a match flow rate larger than that between any one of them and the sink. Thus, the reuse of the process sources can be increased, and the utility consumption can be reduced. However, not all sources have mixed-complementary; mixing those sources do not have mixed-complementary will have the reverse effect. Therefore, it is necessary to optimize the MEN with multiple impurities based on the mechanism of the mixed-complementary...This project will systematically study the characteristics of the limit component, whose load can reach the upper limit at the maximum match flow rate, and propose the corresponding judgement rules. Furthermore, the mechanism of the sources with mixed-complementary will be discussed and the simple rules for identifying the sources with mixed-complementary will be developed. Based on the extended maximum match flow rate matrix, the best matching allocation and bypass can be analyzed for the direct reuse of MEN. Then, the characteristics of the key restriction component of the purified reuse MEN, and the effect of the purification on the mixed-complementary and reuse of the source will be studied, and the systematic method for exploring the optimum purification feed and purification component can be developed. By constructing purification saving potential matrix, the dynamic effects of the purification concentration and the purification feed flow rate on the purification saving potential, the matching sources of each sink and the pseudo sink representing the energy consumption of the purification can be analyzed. The optimum purification concentration and purification quantity can be identified. Finally, the systematical algebraic method based on the mixed-complementary theory will be proposed for the direct-reuse and purification-reuse MEN with multiple impurities.

多杂质质量交换网络中，与同一阱匹配的多源之间存在混合互补。互补的源混合与阱匹配可增大源的回用、降低公用工程的消耗，但不互补的源混合则有相反的效果。正确辨识互补源是影响直接回用和提纯回用质量交换网络集成的关键因素。.本项目拟系统地分析多杂质质量交换网络源阱匹配的极限组分特点，建立极限组分的判断规则；揭示源混合互补的科学内涵和机理，建立互补源的判断规则；基于扩展最大匹配流量矩阵探讨阱的最佳匹配源的识别方法、分析提纯回用质量交换网络关键制约组分的特点以及提纯对于混合互补和源回用的影响，建立最佳提纯源和提纯组分的系统识别方法；分析各阱公用工程消耗量和提纯节约潜力的变化规律，辨识整个系统的最佳提纯浓度和提纯量,建立基于混合互补机理的直接回用和提纯回用多杂质质量交换网络代数演化法。

本项目把流股中可利用组分看作一种虚拟杂质，将其最小浓度的约束值转化为该虚拟杂质的最大浓度约束，据此系统地分析了多杂质质量交换网络源阱匹配的极限组分特点，建立极限组分的判断规则：对于源i和阱j，源中各组分的浓度与阱中相应组分的浓度约束的比值最大的一个所对应的组分为该对源阱匹配的极限组分；揭示源混合互补的充分条件：对于多个可与该阱匹配、且极限组分各不相同的源，若对于每个极限组分，其在相应源与该阱的浓度比值小于其他源与该阱的浓度比值，这些源相对该阱就混合互补。提出f参数辨识源的混合互补以及混合后新的极限组分；以浓度势顺序匹配规则和接近流量匹配准则指导源阱的匹配，建立了最佳匹配源的识别方法。建立节约潜力矩阵辨识脱除不同源不同杂质可节省的公用工程量、关键源和关键杂质。研究表明，脱除关键杂质才能降低公用工程消耗，并提出了最大脱除量的确定方法。针对直接回用的质量交换网络，综合考虑各浓度约束，压力约束、流量约束和系统的总费用，建立基于混合互补机理的代数集成方法；针对提纯回用的质量交换网络，把提纯能耗作为一个虚拟阱，基于最小分离功确定该虚拟阱所需能量，据此建立节约潜力矩阵、识别关键源和关键杂质，和提纯回用质量交换网络的代数集成法。. 项目所提出的混合互补的机理对复杂传递系统的集成有重要的指导意义。所建立的方法和匹配规则可用于知道化工过程工业的设计和优化，例如水网络、炼厂氢网络，对于降低公用工程的消耗有显著效果。