期刊
JOURNAL OF CLEANER PRODUCTION
卷 83, 期 -, 页码 463-472出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jclepro.2014.07.064
关键词
Crotonic acid; Poly(3-hydroxybutyrate); Pyrolysis; Bio-based product
资金
- Environmental Biotechnology Group, Faculty of Biotechnology and Biomolecular Sciences
- Faculty of Engineering, Universiti Putra Malaysia
- Faculty of Chemical Engineering & Natural Resources
- Universiti Putra Malaysia
- Research University Grant Scheme (RUGS), Universiti Putra Malaysia
Bio-based material development has become a new focus globally due to limited supply, increasing price of fossil fuel, and demands for environment sustainability. Current industrial production of crotonic acid through petrochemical route has several drawbacks: i) non-renewable, as it is derived from petroleum resource, ii) involves numerous complicated steps, and iii) produces low yield. Therefore, this paper proposes a method for production of bio-based crotonic acid by direct pyrolysis of bacterial poly(3-hydroxybutyrate) inclusion as an alternative to the petrochemical route. Thermogravimetric profile of poly(3-hydroxybutyrate) inclusions showed poly(3-hydroxybutyrate) degradation occurred at a temperature range of 270 degrees C-350 degrees C with maximum degradation rate at 310 degrees C. Analysis of products from isothermal pyrolysis of poly(3-hydroxybutyrate) at 310 degrees C revealed that pyrolysis of poly(3-hydroxybutyrate) inclusions yielded approximately 63% of crotonic acid. This is 30% higher than the conventional crotonic acid production via petrochemical method. The proposed method also offers other benefits such as renewable and simpler in processing. Besides, by-products of fermentation and pyrolysis are easy to treat, thus minimizing threat to the environment. Moreover, demands for bio-based products are expected to rise in the near future because of social, environmental and economical issues related to fossil resources which make bio-based production method more appealing and favourable. Therefore, pyrolysis of bacterial poly(3-hydroxybutyrate) inclusions provides new insight of renewable and green chemistry of the crotonic acid production. (C) 2014 Elsevier Ltd. All rights reserved.
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