A Systems-Level Roadmap for Biomass Thermal Fractionation and Catalytic Upgrading Strategies [electronic resource]

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Tác giả:

Ngôn ngữ: eng

Ký hiệu phân loại: 666.3 Pottery

Thông tin xuất bản: Washington, D.C. : Oak Ridge, Tenn. : United States. Dept. of Energy. Office of Energy Efficiency and Renewable Energy ; Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2016

Mô tả vật lý: Size: p. 130-150 : , digital, PDF file.

Bộ sưu tập: Metadata

ID: 263444

Although multistage thermal decomposition (fractionation) of biomass with catalytic upgrading is a promising strategy of achieving sustainable fuels production, the number of thermal decomposition stages, their conditions, and the optimal catalytic upgrading chemistries are not known. In this paper, we use conceptual process modeling to propose a general roadmap for the design of a biorefinery by employing these technologies. The overall process considered includes a biomass pretreatment system, a (multistage) thermal decomposition system in which the biomass in decomposed into various fractions, a fraction upgrading system, and a combustion system. We focus primarily on the design of the thermal decomposition and fraction upgrading systems. The goal of our work is to demonstrate the key trade-offs between various process options and to identify important areas for improvement. In general, increasing the complexity of the fraction upgrading systems increases the ultimate yield of C6+ products, though there are diminishing returns on the increase in product yield versus the complexity of the catalytic upgrading sequences. The choice of the number of thermal decomposition stages is not simple and requires careful consideration of the chemistries available to upgrade different components and the relative abundances of these different components. Therefore, the optimal design of the thermal decomposition and fraction upgrading systems cannot be done independently.
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