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

• Type: Article in International Scientific Journal
• Date: 2022

Authors

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

Journal

Title: Energy Technology

Vol. 10 No. 6

Pages: 1-15

ISSN: 2194-4288

Publisher: Wiley-Blackwell

Indexing

ISI Web of Knowledge - 4 Citations

Scopus - 4 Citations

Associated Projects

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

Other information

Authenticus ID: 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 15