Carbon Capture and Storage Toward Industrialization: A Novel Continuous Process for the Production of Carbon Dioxide Clathrates

• Tipo: Artigo em Revista Científica Internacional
• Data: 2022

Autores

Marcelo F. Costa (Autor) Outra; Carlos M. Teixeira (Autor) Outra; Armandina M. Lopes (Autor) Outra; João P. Araújo (Autor) Outra; Madalena M. Dias (Autor) FEUP; Ricardo J. Santos (Autor) FEUP; José Carlos B. Lopes (Autor) Outra

Revista

Título: Energy Technology

Vol. 10 Nº 6

Páginas: 1-15

ISSN: 2194-4288

Editora: Wiley-Blackwell

Indexação

ISI Web of Knowledge - 4 Citações

Scopus - 4 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-00W-BZY

DOI: 10.1002/ente.202100950

Abstract (EN): Gas hydrates have been potentially recognized for developing new technologies for CO2 capture and storage; however, the respective industrialization faces difficulties. Hydrate's crystallization is highly exothermic, 1.3 kJ tonne(-1) of captured CO2, and it only occurs in a narrow window of temperatures, typically 1-5 degrees C. Previous works have systematically reported low space-time yields (STY) due to low specific heat and mass transfer rates of the technologies tested. Herein, NetMIX, a novel mixing technology, is used for the continuous production of CO2 hydrates. NetMIX is a structured mixer consisting of a network of unit cells comprising mixing chambers interconnected by channels. The device used here has specific heat transfer rates ranging from 10(7) to 10(8) W m - 3 degrees C - 1 . The setup proves to be capable of producing hydrates at a STY of 200 tonne h - 1 m - 3 , two orders of magnitude larger than other technologies, resulting in a slurry with more than 20 wt% of CO2 inside the hydrates lattice. The solid is characterized, and a cubic structure I (sI) hydrate structure is detected, with no ice traces. Moreover, results indicate that the process is stable, and no plugging occurs, crucial for industrialization.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 15