Supercritical water gasification of microalga Chlorella vulgaris over supported Ru

Catalytic gasification of microalgae (Chlorella vulgaris) was performed in supercritical water (SCW) at 385 °C and 26 MPa in a stainless steel batch reactor with various supported Ru as catalysts, and the gasification characteristics was examined in detail. With Ru/charcoal catalyst and at 4.8 wt s...

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Main Authors: Tiong, L., Komiyama, M.
Format: Article
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.22158 /
Published: 2019
Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85054463559&doi=10.1016%2fj.supflu.2018.05.011&partnerID=40&md5=a548f2c42a9a1f9027e5058c33a3025b
http://eprints.utp.edu.my/22158/
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spelling utp-eprints.221582019-02-28T05:49:26Z Supercritical water gasification of microalga Chlorella vulgaris over supported Ru Tiong, L. Komiyama, M. Catalytic gasification of microalgae (Chlorella vulgaris) was performed in supercritical water (SCW) at 385 °C and 26 MPa in a stainless steel batch reactor with various supported Ru as catalysts, and the gasification characteristics was examined in detail. With Ru/charcoal catalyst and at 4.8 wt solid feed concentration, total gas conversion of C. vulgaris organic matter reached its plateau of 87 C gasification within 30 min reaction time. Gasification rate was strongly dependent on Ru particle size, whereas product distribution within the gas components showed more influence of catalyst support material. Ru/charcoal catalyst kept its activity in the first three repetitive runs, then gradually lost its activity to ca. half of its original activity after 5th run, while Ru kept its metallic state throughout. Loss of Ru metal after 1 h of SCW gasification was found to be ca. 0.017 of charged amount. © 2018 Elsevier B.V. 2019 Article NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85054463559&doi=10.1016%2fj.supflu.2018.05.011&partnerID=40&md5=a548f2c42a9a1f9027e5058c33a3025b Tiong, L. and Komiyama, M. (2019) Supercritical water gasification of microalga Chlorella vulgaris over supported Ru. Journal of Supercritical Fluids, 144 . pp. 1-7. http://eprints.utp.edu.my/22158/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
description Catalytic gasification of microalgae (Chlorella vulgaris) was performed in supercritical water (SCW) at 385 °C and 26 MPa in a stainless steel batch reactor with various supported Ru as catalysts, and the gasification characteristics was examined in detail. With Ru/charcoal catalyst and at 4.8 wt solid feed concentration, total gas conversion of C. vulgaris organic matter reached its plateau of 87 C gasification within 30 min reaction time. Gasification rate was strongly dependent on Ru particle size, whereas product distribution within the gas components showed more influence of catalyst support material. Ru/charcoal catalyst kept its activity in the first three repetitive runs, then gradually lost its activity to ca. half of its original activity after 5th run, while Ru kept its metallic state throughout. Loss of Ru metal after 1 h of SCW gasification was found to be ca. 0.017 of charged amount. © 2018 Elsevier B.V.
format Article
author Tiong, L.
Komiyama, M.
spellingShingle Tiong, L.
Komiyama, M.
Supercritical water gasification of microalga Chlorella vulgaris over supported Ru
author_sort Tiong, L.
title Supercritical water gasification of microalga Chlorella vulgaris over supported Ru
title_short Supercritical water gasification of microalga Chlorella vulgaris over supported Ru
title_full Supercritical water gasification of microalga Chlorella vulgaris over supported Ru
title_fullStr Supercritical water gasification of microalga Chlorella vulgaris over supported Ru
title_full_unstemmed Supercritical water gasification of microalga Chlorella vulgaris over supported Ru
title_sort supercritical water gasification of microalga chlorella vulgaris over supported ru
publishDate 2019
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85054463559&doi=10.1016%2fj.supflu.2018.05.011&partnerID=40&md5=a548f2c42a9a1f9027e5058c33a3025b
http://eprints.utp.edu.my/22158/
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