无机物对稻壳热解过程及产物特性的影响。
Effect of inorganic species on torrefaction process and product properties of rice husk.
机构信息
Division of New Energy Science and Engineering, School of Energy and Power Engineering, Nanjing University of Science and Technology, Nanjing 210094, China; Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China.
Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China.
出版信息
Bioresour Technol. 2018 Oct;265:450-455. doi: 10.1016/j.biortech.2018.06.042. Epub 2018 Jun 20.
The objective of this study was to evaluate the effect of inorganic species on torrefaction process and product properties. Torrefaction process of raw and leached rice husk was performed at different temperatures between 210 and 270 °C. Inorganic species have significant effect on the torrefaction process and properties of torrefaction products. The results indicated that solid yield increased, gas yield decreased and liquid yield remained unchanged for leached rice husk when compared to raw rice husk. Gas products from torrefaction process mainly contained CO and CO, and leaching process slightly reduced the volume concentration of CO. Removal of inorganic species slightly decreased water content and increased organic component content in liquid products. Acetic acid, furfural, 2,3-dihydrobenzofuran and levoglucosan were the dominant components in liquid product. Inorganic species enhanced the effect of deoxygenation and dehydrogenation during torrefaction process, resulting in the enrichment of C component in solid products.
本研究旨在评估无机物种对热解过程和产物性质的影响。在 210 至 270°C 的不同温度下，对原稻壳和浸出稻壳进行了热解实验。无机物种对热解过程和热解产物的性质有显著影响。结果表明，与原稻壳相比，浸出稻壳的固体收率增加，气体收率降低，液体收率保持不变。热解过程中产生的气体产物主要含有 CO 和 CO，浸出过程略微降低了 CO 的体积浓度。无机物种的去除略微降低了液体产物中的水分含量，增加了有机成分的含量。液体产物中的主要成分有乙酸、糠醛、2,3-二氢苯并呋喃和左旋葡聚糖。在热解过程中，无机物种增强了脱氧和脱氢的作用，导致固体产物中 C 成分的富集。
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