Propane and Propylene Separation with Carbon Dioxide at Mild Temperatures by Gas-Phase Simulated Moving Bed in Binderfree Zeolite 13X

• Tipo: Artigo em Revista Científica Internacional
• Data: 2023

Autores

Seabra, R (Autor) Outra; Dias, ROM (Autor) Outra; Regufe, MJ (Autor) Outra; Ana M. Ribeiro (Autor) FEUP; Rodrigues, AE (Autor) Outra; Alexandre Ferreira (Autor) FEUP

Revista

Título: Industrial & Engineering Chemistry Research

Vol. 62

ISSN: 0888-5885

Editora: American Chemical Society

Indexação

ISI Web of Knowledge - 0 Citações

Scopus - 0 Citações

Projetos Associados

LA LSRE-LCM - Financiamento Plurianual 2020-2023 para a Unidade LA LSRE-LCM Laboratório de Processos de Separação e Reacção - Laboratório de Catálise e Materiais

Outras Informações

ID Authenticus: P-00Y-WY8

DOI: 10.1021/acs.iecr.3c01601

Abstract (EN): This work studiedthe separation of propane and propylene usingcarbon dioxide as a desorbent and binderfree zeolite 13X as adsorbent.The process occurred at a mild temperature (323 K) using the gas-simulatedmoving bed (SMB) technology. Adsorption equilibrium isotherms of propylene,propane, and carbon dioxide were measured gravimetrically in a temperaturerange from 323 to 423 K and a pressure up to 5 bar. Breakthrough experimentswere performed at 323 K and 3 bar. Binary adsorption equilibrium datawere obtained from the dynamic experiments. Non-ideal adsorption behaviorwas observed for the adsorbate-adsorbent pairs; therefore,the multicomponent adsorption equilibrium was predicted with the RAST-aNRTLmodel. An SMB experiment was performed in the gas-SMB unit. For the0.5/0.5 propane/propylene (molar-based) feed composition, a propylenepurity of 98.8% was obtained, with a recovery above 98% and a productivityof 40.8 kg(C3H6) h(-1) m(ads) (-3). This work experimentally demonstrated that it ispossible to produce high-purity propylene with a high recovery usingbinderfree zeolite 13X as adsorbent and carbon dioxide as a desorbentat mild temperature (323 K).

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 13