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Single-Step Purification of Raw Biogas to Biomethane Quality by Hollow Fiber Membranes without Any Pretreatment - a Radical Innovation in Biogas Upgrading.

SYSNO ASEP	0498647
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Single-Step Purification of Raw Biogas to Biomethane Quality by Hollow Fiber Membranes without Any Pretreatment - a Radical Innovation in Biogas Upgrading.
Author(s)	Žák, Michal (UCHP-M) Bendová, H. (CZ) Friess, K. (CZ) Bara, J. E. (US) Izák, Pavel (UCHP-M)_{RID, ORCID, SAI}
Source Title	Separation and Purification Technology. - : Elsevier - ISSN 1383-5866 Roč. 203, SEP 12 (2018), s. 36-40
Number of pages	5 s.
Language	eng - English
Country	GB - United Kingdom
Keywords	biogas purification ; biomethane ; hollow fiber membranes
Subject RIV	CI - Industrial Chemistry, Chemical Engineering
OECD category	Chemical process engineering
R&D Projects	TE01020080 GA TA ČR - Technology Agency of the Czech Republic (TA ČR)
Institutional support	UCHP-M - RVO:67985858
UT WOS	000436051500005
EID SCOPUS	85045026937
DOI	10.1016/j.seppur.2018.04.024
Annotation	Herein, a radical innovation in biogas production is presented using a single-step membrane purification technology without any necessary pretreatment steps for contaminant removal and with the usage of low feed pressure. Asymmetric hollow fiber membranes with a thin, selective, non-porous layer made from polyester carbonate on the bore side were successfully used in a single-step raw biogas upgrading process at biogas plant Choťovice in the Czech Republic. A double-stage arrangement operated at 17 °C exhibited the best CO2/CH4 separation factor with 96 vol.% CH4 purity. This single-step biogas upgrading technology with highly H2S and water-resistant membrane modules allows reductions in capital expenditures of ~20% and in operational expenditures of ~50% compared to highpressure water scrubbing (HPWS) and ~70% compared to pressure swing adsorption (PSA). Due to the small energy consumption required merely for biogas compression, our units consumed around only ~2 MJ/Nm3 CH4. Thus, our approach with significantly improved performance and robustness of the membrane separation process can be seen as a major breakthrough of membrane gas separation for inexpensive biogas production.
Workplace	Institute of Chemical Process Fundamentals
Contact	Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227
Year of Publishing	2019

Number of the records: 1