کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7079020 | 1459987 | 2014 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Understanding the stability of pyrolysis tars from biomass in a view point of free radicals
ترجمه فارسی عنوان
درک پایداری خاک های خاکی از زیست توده به نظر رادیکال های آزاد
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کلمات کلیدی
زیست توده، پیرولیز، رادیکال ها، زباله های زیستی،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
Fast pyrolysis of biomass has attracted increasing attention worldwide to produce bio-tars that can be upgraded into liquid fuels and chemicals. However, the bio-tars are usually poor in quality and stability and are difficult to be upgraded. To better understand the nature of the bio-tars, this work reveals radical concentration of tars derived from pyrolysis of two kinds of biomass. The tars were obtained by condensing the pyrolysis volatiles in 3Â s. It shows that the tars contain large amounts of radicals, at a level of 1016Â spins/g, and are able to generate more radicals at temperatures of 573Â K or higher, reaching a level of 1019Â spins/g at 673Â K in less than 30Â min. The radical generation in the tar samples is attributed to the formation of THF insoluble matters (coke), which also contain radicals. The radical concentrations of the aqueous liquids obtained in pyrolysis are also studied.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 156, March 2014, Pages 372-375
Journal: Bioresource Technology - Volume 156, March 2014, Pages 372-375
نویسندگان
Wenjing He, Qingya Liu, Lei Shi, Zhenyu Liu, Donghui Ci, Caroline Lievens, Xiaofen Guo, Muxin Liu,