Efficiency Comparison of Large-Scale Standalone, Centralized, and Distributed Thermochemical Biorefineries
Journal article, 2017

© 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.We present a comparison of three strategies for the introduction of new biorefineries: standalone and centralized drop-in, which are placed within a cluster of chemical industries, and distributed drop-in, which is connected to other plants by a pipeline. The aim was to quantify the efficiencies and the production ranges to support local transition to a circular economy based on biomass usage. The products considered are biomethane (standalone) and hydrogen/biomethane and sustainable town gas (centralized drop-in and distributed drop-in). The analysis is based on a flow-sheet simulation of different process designs at the 100MWbiomass scale and includes the following aspects: advanced drying systems, the coproduction of ethanol, and power-to-gas conversion by direct heating or water electrolysis. For the standalone plant, the chemical efficiency was in the range of 78-82.8% LHVa.r.50% (lower heating value of the as-received biomass with 50% wet basis moisture), with a maximum production of 72MWCH4 , and for the centralized drop-in and distributed drop-in plants, the chemical efficiency was in the range of 82.8-98.5% LHVa.r.50% with maximum production levels of 85.6MWSTG and 22.5MWH2 /51MWCH4 , respectively. It is concluded that standalone plants offer no substantial advantages over distributed drop-in or centralized drop-in plants unless methane is the desired product.

Hydrogen

Gobigas

Biomethane

Biomass

Power-to-gas

Author

Alberto Alamia

Chalmers, Energy and Environment, Energy Technology

Stefanìa Òsk Gardarsdòttir

Chalmers, Energy and Environment, Energy Technology

Anton Larsson

Chalmers, Energy and Environment, Energy Technology

Fredrik Normann

Chalmers, Energy and Environment, Energy Technology

Henrik Thunman

Chalmers, Energy and Environment, Energy Technology

Energy Technology

2194-4296 (eISSN)

Vol. 5 8 1435-1448

Driving Forces

Sustainable development

Subject Categories

Energy Engineering

Energy Systems

Areas of Advance

Energy

DOI

10.1002/ente.201600719

More information

Created

10/7/2017