Thermal Stability of Fractionated Bio-Oil from Fast Pyrolysis [electronic resource]

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Tác giả:

Ngôn ngữ: eng

Ký hiệu phân loại: 666.98 Ceramic and allied technologies

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. 9419-9426 : , digital, PDF file.

Bộ sưu tập: Metadata

ID: 264585

A method was developed to simulate the rapid heating bio-oil fractions will undergo if upgraded using conventional petroleum refining processes. Bio-oil fractions were produced via fluidized bed fast pyrolysis of southern yellow pine sawmill residue. Thermal processing of the bio-oil fractions was evaluated at three temperatures (100, 200, and 300 �C) and two heating times (60 and 120 s). Thermal stability was defined as the increase in average relative molecular weight (RMW) of bio-oil samples after thermal treatment. The effect of moisture content and total acid number (TAN) on thermal stability was also investigated. Changes in chemical structures were observed via Fourier transform infrared spectroscopy (FTIR). Bio-oil fractions exhibited considerable instability at temperatures above 100 �C with substantial increases in average RMW for both 60 and 120 s heating times. Finally, the initial concentration of acids, as measured by TAN and ion chromatography (IC), was found to be the strongest predictor of thermal instability.
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