In petroleum and chemical industries, many valuable species are depleted into various refinery gases. In order to fractionate and reclaim these valuable components efficiently and sufficiently, it is necessary to integrate diverse separation techniques together. The major obstacle to synthesize and optimize such a multi-component and multi-input process is the combinatorial explosion. In this research, graphic synthesis method is established to construct the multi-technique integration processes, in which the optimum or near-optimum sequence would be programmed to couple high efficient separation unit operations together to improve efficiency. As the support, three technical measures are summarized: the pseudo-ternary mixtures of H₂, light hydrocarbons and fuel gases are proposed to depict refinery gases, after ranking species with their separation characteristics and belongings in products, so that the composition space can be visualized into triangular coordinate system; the dominant feed ranges for the pivotal separation units, i.e., adsorption, condensation, glassy and rubbery polymeric membranes, are determined after efficiency analysis, in which the represented technique is more efficient than the others for the composition matched feedstock; the shortcut calculation and the visualized representation with vectors in triangular coordinate system are created to quickly estimate separation operations, owing to their selectivity unique to a certain component group. Without laborious work to screen numerous sequences, this method programs recovery strategies and synthesizes processes appropriately and quickly.

在石油和化学工业中，许多有价值的物种被消耗到各种精炼气体中。为了有效和充分地分离和回收这些有价值的成分，有必要将各种分离技术整合在一起。合成和优化这种多组件和多输入过程的主要障碍是组合爆炸。在这项研究中，建立了图形综合方法来构建多技术集成过程，在该过程中，将对最佳或接近最佳的程序进行编程，以将高效的分离单元操作耦合在一起，从而提高效率。作为支持，总结了三种技术措施：H ₂的拟三元混合物提出了轻烃和燃料气体来描绘炼油厂气体，然后按其分离特性和产品所属类别对物种进行排序，以便可以将组成空间可视化为三角坐标系；关键的分离单元的主要进料范围，即吸附，缩合，玻璃状和橡胶状聚合物膜，是在效率分析之后确定的，其中与组合物匹配的原料相比，所代表的技术要比其他技术更有效；由于捷径计算和可视化表示法在三角坐标系中具有矢量，因此可以快速估计分离操作，这是因为它们对特定组分组具有唯一性，因此具有很高的选择性。无需费力地筛选众多序列，