Multicomponent Adsorption Processes

CTS-9401935普渡大学研究基金会菲利普·C·万卡特摘要这项研究的中心焦点将是开发置换色谱，用于分离具有压力、真空或热摆动的气体，以再生色谱柱。将测试以多组分混合物中吸附最少的物种为载气，以最强的吸附剂为驱替液的操作模式。将审查几个系统，包括轻烃和氢气的分离以及二氧化碳和甲烷与氢气或氮气的分离。对这一过程的理论描述将包括修改局部均衡模型和开发现实的利率模型。气体分离对许多行业都很重要。目前的方法在实践中执行起来既困难又昂贵。像这个项目中将要研究的那些新工艺可能有助于降低生产成本。

CTS-9401935 Purdue University Research Foundation Phillip C. Wankat ABSTRACT The central focus of this research will be the development of displacement chromatography for the separation of gases with pressure, vacuum or thermal swings to regenerate the column. Operation modes will be tested that utilize the least adsorbing species in a multicomponent mixture as the carrier gas and the strongest adsorber as the displacement fluid. Several systems will be examined including separation of light hydrocarbons and hydrogen as well as carbon dioxide and methane with either hydrogen or nitrogen. Theoretical descriptions of the process will include modification of local equilibrium models and development of realistic rate models. Separation of gases is important for a number of industries. Current methods can be difficult and expensive to perform in practice. New processes like those to be studied in this project may help to production costs.