Yangli Petrochemical

Petroleum Refining Research Institute, Luo Yang Petrochemical Eng. Corp., 471023, Luo Yang, Henan P.R.CHINA... 

Yang, X-M, Lentz, D.R., McCutcheon, S.R. 2003. Petrochemical evolution of subvolcanic granitoid intrusions within the late Devonian Mount Pleasant Caldera, southwestern New Brunswick, Canada comparison of Au versus Sn-W-Mo-polymetallic mineralization systems. Atlantic Geology, 39, 97-121. 

Fathi-Afshar, S. and Yang, J. (1985) Designing the optimal structure of the petrochemical industry for minimum cost and least gross toxicity of chemical production. Chemical Engineering Science, 40, 781. 

The principal types of industrial adsorbent can be divided into amorphous and the crystalline types. The former includes activated carbon, silica gel, and activated alumina the latter includes zeolites and their aluminum phosphate, AIPO4 (or ALPO), analogs. Yang (2003) wrote that, since the invention of synthetic zeolites in 1959, adsorption has become a key separation tool in the chemical, petrochemical, and pharmaceutical industries. Adsorptive separation of different molecules can be achieved by three mechanisms equilibrium adsorption differences, diffusion kinetics differences. 

Juang LC, Tseng DH, Yang SC. Treatment of petrochemical wastewater by UV/H202 photodecomposed system. Water Sci Technol 1997 36 357-365. 

Yang, G., Huang, Z., Chen, D., and Zhao, S. Study of Fast Fluidized Bed for Converting Butene to Butadiene by Oxidative Dehydrogenation, Petrochemical Technology (Chinese), vol. 16, No. 10, pp. 680-685. 

Zhang R. Y., Liou J. G., Yang J. S., and Yui T. F. (2000) Petrochemical constrains for dual origin of garnet peridotites from the Dabie-Su-Lu UHP terrane, eastern-central China. J. Metamorph. Geol. 18, 149—166. 

Other leading Asian based suppliers are Mitsubishi Gas Chemicals with capacity totalling 140,000 tpa, Idemitsu Petrochemicals (100,000 tpa in Taiwan with joint venture partner Formosa Plastics), Thai Polycarbonate (60,000 tpa), Asahi Kasei/Chi Mei (50,000 tpa), Sumitomo (50,000 tpa), and Sam Yang Kasei (50,000 tpa). 

The fermentative production of butyric acid was first detected by Louis Pasteur from his landmark anaerobic cultivation in 1861 (Van Andel et al., 1985 Wu and Yang, 2003). The biochemical production of butyric acid using fermentation was popular in 1945 and onwards (Lee et al., 2008b). However, after 1960, this anaerobic fermentation lost its competitiveness due to high feedstock costs and fast-growing petrochemical industries. With increasing costs of liquid fossil fuels, rising environmental concerns, and the depletion of nonrenewable sources, interest has been reestablished in anaerobic fermentation. 

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