| Title | Efficiency Comparison of Large-Scale Standalone, Centralized, and Distributed Thermochemical Biorefineries |
|---|---|
| ID_Doc | 10210 |
| Authors | Alamia, A; Gardarsdottir, SO; Larsson, A; Normann, F; Thunman, H |
| Title | Efficiency Comparison of Large-Scale Standalone, Centralized, and Distributed Thermochemical Biorefineries |
| Year | 2017 |
| Published | Energy Technology, 5, 8 |
| Abstract | 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 100MW(biomass) 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 72MWCH(4), 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 85.6MW(STG) and 22.5MWH(2)/51MWCH(4), 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. |
| https://www.onlinelibrary.wiley.com/doi/pdfdirect/10.1002/ente.201600719 |
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