By Guodong Zhang, Shengguo Cheng
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Extra resources for Advances in Environmental Engineering: Selected, Peer Reviewed Papers from the 2012 Global Conference on Civil, Structural and Environmental ... International
The reasearches have shown that vehicle emissions, fuel combustion and cooking are the main sources of fatty acids which their carbon numbers are no more than twenty-one (≤C20). The high carbon numbers (>C20) of fatty acids are mainly the contribution of plant wax. Photochemical reactions of organic compounds which come from anthropogenic effects are the main sources of dicarboxylic acids in particulate matter. Using C18/C16 ratio and carbon priority index (CPI) can assess the main sources of the fatty acids [13-15], but the analysis of the dicarboxylic acid sources model have not been found.
Buresh, M. Casselman and W. Patrick Jr: Adv Agron 33, 149-192 (1980)  D, Yoch and G, Whiting: Appl Environ Microbiol 51, 143-149 (1986)  T. Liengen: Can J Microbiol 45, 223-229 (1999)  Y. Zou, J. Zhang, D. Yang, X. Chen, J. Zhao, W. Xiu, X. Lai and G. R. N. R. F. H. com Keywords: furfural hydrogenation, non-chromium catalyst, furfuryl alcohol, amorphous alloy Abstract: Furfuryl alcohol is an important organic chemical material. The traditional catalysts of furfural hydrogenation to produce furfuryl alcohol contain Cr, which is harmful to people’s health and causes severe environmental pollution.
Conclusions The research of highly effective and environment-friendly catalysts has been the active fields in the production of furfuryl alcohol from furfural hydrogenation. Up to date, more and more efforts have been devoted to the research of non-Cr catalysts, especially those ultrafine amorphous alloy catalysts. The main task at present is to accelerate the industrialization, and to reduce our dependence of the importation from foreign countries to achieve cleaner production. A lot of work is still to be done to develop novel non-Cr catalysts, and to improve the catalytic performance of such catalysts.