【摘要】 <正> 在化工过程模拟中广泛采用序贯模块法．实际过程常含有若干再循环回路，必须选择有效的切割物流集，以使系统可序贯计算．由干在过程模拟中各物流并不总是等同的，它们具有不同的迭代收敛时问，因此切割物流的选择会影响迭代收敛的速度和效率．为寻找有效的更多还原

【Abstract】 A rule that assigns a weight to each stream according to two weighting levels is proposed. An efficient tearing algorithm for decomposition of chemical process flowsheets based upon the rule proposed here is developed. A practical example of ketone - benzol dewaxing is examined. The proposed algorithm can find the optimal cut - set for this example. The results are better than former tearing algorithms in convergence behaviour.更多还原