Modification of a pilot-scale continuous flow reactor for hydrothermal liquefaction of wet biomass.

Continuous flow reactor High-pressure filtration Hydrothermal liquefaction Microalgae Pilot-Scale Continuous Flow Hydrothermal Liquefaction of Biomass

Journal

MethodsX
ISSN: 2215-0161
Titre abrégé: MethodsX
Pays: Netherlands
ID NLM: 101639829

Informations de publication

Date de publication:
2019
Historique:
received: 25 09 2019
accepted: 16 11 2019
entrez: 25 12 2019
pubmed: 25 12 2019
medline: 25 12 2019
Statut: epublish

Résumé

A pilot-scale continuous flow reactor (CFR) was modified for hydrothermal liquefaction (HTL) of algae slurry under subcritical conditions to investigate the feasibility of scaling up from batch to continuous processing. Modifications included a novel dual filter system that can remove solids at system pressure and temperature, and undergo in-situ cleaning. Commissioning was carried out to address potential particle settling and clogging problems, and to estimate reactor transport characteristics. CFR performance was evaluated by running 31.4 L algae slurry with solids loadings of 3-5 wt.% under 325-350 °C and 18 MPa for 7 h. C and N elemental yields in HTL aqueous phase reached 39.0 wt.% and 61.8 wt.%, respectively. Future improvements to the CFR system will focus on higher solids loading and addition of in-line HTL liquid upgrading capabilities following the filtration system. •A high-temperature, high-pressure filtration system was designed to remove solids from HTL liquid/gaseous products at near reaction conditions to keep heavy oils in the liquid phase.•Uninterrupted reactor operation was achieved by cycling between the dual filter systems and performing in-situ filter cleaning.•Measured reactor residence time distributions were narrow and close to the calculated theoretical mean time.

Identifiants

DOI: 10.1016/j.mex.2019.11.019 PMID: 31871914 PMC: PMC6909004
pubmed: 31871914
doi: 10.1016/j.mex.2019.11.019
pii: S2215-0161(19)30322-X
pmc: PMC6909004
doi:

Types de publication

Journal Article

Langues

eng

Pagination

2793-2806

Informations de copyright

© 2019 The Author(s).

Déclaration de conflit d'intérêts

The authors have no conflicts to declare.

Références

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pubmed: 29525590

Auteurs

Feng Cheng (F)

Department of Chemical and Materials Engineering, New Mexico State University, P.O. Box 30001 MSC 3805, Las Cruces, NM 88003, USA.

Travis Le Doux (T)

Department of Chemical and Materials Engineering, New Mexico State University, P.O. Box 30001 MSC 3805, Las Cruces, NM 88003, USA.

Brian Treftz (B)

Department of Chemical and Materials Engineering, New Mexico State University, P.O. Box 30001 MSC 3805, Las Cruces, NM 88003, USA.

Scott Woolf (S)

Department of Chemical and Materials Engineering, New Mexico State University, P.O. Box 30001 MSC 3805, Las Cruces, NM 88003, USA.

Jiuling Yu (J)

Department of Chemical and Materials Engineering, New Mexico State University, P.O. Box 30001 MSC 3805, Las Cruces, NM 88003, USA.

Juanita Miller (J)

Department of Chemical and Materials Engineering, New Mexico State University, P.O. Box 30001 MSC 3805, Las Cruces, NM 88003, USA.

Umakanta Jena (U)

Department of Chemical and Materials Engineering, New Mexico State University, P.O. Box 30001 MSC 3805, Las Cruces, NM 88003, USA.

Catherine E Brewer (CE)

Department of Chemical and Materials Engineering, New Mexico State University, P.O. Box 30001 MSC 3805, Las Cruces, NM 88003, USA.

Classifications MeSH