Supercritical Water Gasification on Three Types of Microalgae in the Presence and Absence of Catalyst and Salt

Krishnan, V. and Thachanan, S. and Matsumura, Y. and Uemura, Y. (2016) Supercritical Water Gasification on Three Types of Microalgae in the Presence and Absence of Catalyst and Salt. In: UNSPECIFIED.

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Official URL: https://www.scopus.com/inward/record.uri?eid=2-s2....

Abstract

Supercritical water gasification is an efficient technique for gasifying biomass in particular with high moisture content. Therefore, it is a promising technology that allows gasification of microalgae. Supercritical water gasification (SCWG) of three microalgae was conducted at 673 K and 25 MPa, which produces various gas products such as carbon monoxide, carbon dioxide, methane, ethane, ethylene, and hydrogen gas. SCWG was conducted in the presence and absence of nickel catalyst and sodium chloride salt. In the presence of nickel catalyst, microalgae were gasified more efficiently relative to non-catalytic SCWG. Surprisingly, addition of salt to the SCWG seems to increase the carbon gasification efficiency. Also a new approach was studied by addition of catalyst and salt which reveals lower carbon gasification efficiency. SCWG of marine microalgae seems to be more efficient than freshwater microalgae as higher amount of carbon dioxide and hydrogen gas was produced. © 2016 The Authors.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Additional Information: cited By 18; Conference of 4th International Conference on Process Engineering and Advanced Materials, ICPEAM 2016 ; Conference Date: 15 August 2016 Through 17 August 2016; Conference Code:131138
Uncontrolled Keywords: Algae; Carbon dioxide; Carbon monoxide; Catalysts; Efficiency; Ethylene; Microorganisms; Nickel; Process engineering; Reaction kinetics; Supercritical fluid extraction, Alkali salts; Carbon gasification; Freshwater microalgae; High moisture contents; Marine microalgae; Micro-algae; Supercritical water gasification; Supercritical water gasification (SCWG), Gasification
Depositing User: Mr Ahmad Suhairi UTP
Date Deposited: 09 Nov 2023 16:19
Last Modified: 09 Nov 2023 16:19
URI: https://khub.utp.edu.my/scholars/id/eprint/7480

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