Fuxin Yang
Xi'an Jiaotong University
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Publication
Featured researches published by Fuxin Yang.
Bioresource Technology | 2017
Shuanghui Deng; Houzhang Tan; Xuebin Wang; Fuxin Yang; Ruijie Cao; Zhao Wang; Renhui Ruan
Gaining the valuable fuels from sewage sludge is a promising method. In this work, the fast pyrolysis characteristics of sewage sludge (SS), wheat straw (WS) and their mixtures in different proportions were carried out in a drop-tube reactor. The combustion reactivity of the residual char obtained was investigated in a thermogravimetric analyzer (TGA). Results indicate that SS and WS at different pyrolysis temperatures yielded different characteristic gas compositions and product distributions. The co-pyrolysis of SS with WS showed that there existed a synergistic effect in terms of higher gas and bio-oil yields and lower char yield, especially at the WS adding percentage of 80wt%. The addition of WS to SS increased the carbon content in the SS char and improved char porous structures, resulting in an improvement in the combustion reactivity of the SS char. The research results can be used to promote co-utilization of sewage sludge and biomass.
Biotechnology and Bioprocess Engineering | 2015
Fuxin Yang; Waheed Afzal; Kun Cheng; Nian Liu; Markus Pauly; Alexis T. Bell; Zhigang Liu; John M. Prausnitz
Miscanthus giganteus (M. giganteus) is a promising feedstock for the production of bioethanol or biochemicals. Using only dilute nitric acid, this work describes a two-step process for hydrolyzing hemicellulose and cellulose to fermentable sugars. Primary variables were temperature and reaction time. The solid-to-liquid mass ratio was 1:8. No enzymes were used. In the first step, M. giganteus was contacted with 0.5 wt.% nitric acid at temperatures between 120 and 160°C for 5 to 40 min. The second step used 0.5 or 0.75 wt.% nitric acid at temperatures between 180 and 210°C for less than 6 min. Under selected conditions, almost all hemicellulose and 58% cellulose were transferred to the liquid phase. Small amounts of degradation products were observed. The xylose solution obtained from the nitric-acid hydrolysis was fermented for 96 h and the glucose solution for 48 h to yield 0.41 g ethanol/g xylose and 0.46 g ethanol/g glucose. To characterize residual solids and the liquor from both steps, nuclear-magneticresonance (NMR) spectroscopy was performed for each fraction. The analytical data indicate that the liquid phase from Steps 1 and 2 contain little lignin or lignin derivatives.
Journal of Environmental Management | 2018
Xing Liu; Houzhang Tan; Yibin Wang; Fuxin Yang; Hrvoje Mikulčić; Milan Vujanović; Neven Duić
Low NOx burner redesign and deep air staging have been carried out to optimize the poor ignition and reduce the NOx emissions in a low volatile coal fired 330 MWe boiler. Residual swirling flow in the tangentially-fired furnace caused flue gas velocity deviations at furnace exit, leading to flow field unevenness in the SCR (selective catalytic reduction) system and poor denitrification efficiency. Numerical simulations on the velocity field in the SCR system were carried out to determine the optimal flow deflector arrangement to improve flow field uniformity of SCR system. Full-scale experiment was performed to investigate the effect of low NOx combustion and SCR flow field optimization. Compared with the results before the optimization, the NOx emissions at furnace exit decreased from 550 to 650 mg/Nm³ to 330-430 mg/Nm³. The sample standard deviation of the NOx emissions at the outlet section of SCR decreased from 34.8 mg/Nm³ to 7.8 mg/Nm³. The consumption of liquid ammonia reduced from 150 to 200 kg/h to 100-150 kg/h after optimization.
Energy Conversion and Management | 2016
Xuebin Wang; Shuanghui Deng; Houzhang Tan; Adewale Adeosun; Milan Vujanović; Fuxin Yang; Neven Duić
Thermochimica Acta | 2016
Shuanghui Deng; Xuebin Wang; Houzhang Tan; Hrvoje Mikulčić; Fuxin Yang; Zhifeng Li; Neven Duić
The Journal of Chemical Thermodynamics | 2013
Xiaopo Wang; Fuxin Yang; Yuan Gao; Zhigang Liu
Journal of Chemical & Engineering Data | 2013
Fuxin Yang; Xiaopo Wang; Wei Wang; Zhigang Liu
Thermochimica Acta | 2012
Fuxin Yang; Xiaopo Wang; Zhigang Liu
Energy & Fuels | 2015
Fuxin Yang; Zhongguo Liu; Waheed Afzal; Alexis T. Bell; John M. Prausnitz
The Journal of Chemical Thermodynamics | 2017
Fuxin Yang; Qian Ma; Xiaopo Wang; Zhigang Liu