文章基本信息

标题：Cyclic Automation of a Plant for the Removal of CO 2 from Biogas
本地全文：下载
作者：L. Bisone ; S. Bittanti ; S. Canevese 等
期刊名称：IFAC PapersOnLine
印刷版ISSN：2405-8963
出版年度：2017
卷号：50
期号：1
页码：10802-10807
DOI：10.1016/j.ifacol.2017.08.2348
语种：English
出版社：Elsevier
摘要：AbstractAn upgrading process to obtain biomethane from biogas is studied, consisting of carbon dioxide removal by an amine-based pelleted solid sorbent inside a fixed-bed tubular reactor. The amine catalyst undergoes a saturation effect, so that a regeneration stage is necessary. In order to ensure continuous biomethane production, the plant automation requires a set of reactors working in parallel. This way, while a reactor is in the adsorption stage, another one is in the regeneration stage. The duration of the stages is such that three reactors at least are needed. Overall, this leads to a cyclic control system. In this paper we develop a dynamic model of the batch process, based on mass, energy and momentum conservation equations and on algebraic constitutive relations. From the initial partial differential equation model, a lumped-parameter description is worked out, leading to a nonlinear system with 280 state variables. Such model is used to understand the adsorption/desorption process in detail and then design a cyclic control structure.
关键词：KeywordsCO2RemovalSolid SorbentBiomethaneReactors CascadingProcess ControlPeriodic Control, Hierarchical Control.