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| 1 | Review of the biological and engineering aspects of algae to fuels approach显示文摘Current biofuel production relies on limited arable lands on the earth,and is impossible to meet the biofuel demands.Oil producing algae are alternative biofuel feedstock with potential to meet the world’s ambitious goal to replace fossil fuels.This review provides an overview of the biological and engineering aspects in the production and processing technologies and recent advances in research and development in the algae to fuels approach.The article covers biology,selection and genetic modification of algae species and strains,production systems design,culture media and light management,harvest and dewatering,downstream processing,and environment and economic assessment.Despite the many advances made over several decades,commercialization of algal fuels remains challenging chiefly because of the techno-economic constraints.Technological breakthroughs in all major aspects must take place before commercial production of algal fuels becomes economically viable. | Paul Chen Min Min Yifeng Chen Liang Wang Yecong Li Qin Chen Chenguang Wang Yiqin Wan Xiaoquan Wang Yanling Cheng Shaobo Deng Kevin Hennessy Xiangyang Lin Yuhuan Liu Yingkuan Wang Blanca Martinez Roger Ruan | 2009 | International Journal of Agricultural and Biological Engineering2009，2，4： | 9 |
| 2 | Catalytic microwave assisted pyrolysis of aspen显示文摘The effect of catalysts on the microwave pyrolysis of aspen pellets was studied.A range of chlorides,nitrates and metal-oxides were added at 2%of the aspen mass(air dry aspen pellet weight basis).Chlorides in particular were found to favor liquid yield,especially the yield of water phase residue.Average liquid yield with added chlorides was 41%mass of the total biomass input,compared to 35%mass without catalyst.Metal-oxides were found to favor pyrolysis heavy oil,and thus total oil yield,since the yield of light oils seemed to be fairly constant.Nitrates were found to favor pyrolysis gas production.Pure light oils and light oils blended with diesel were found to be a potential diesel fuel substitute. | Johannes Moen Changyan Yang Bo Zhang Hanwu Lei Kevin Hennessy Yiqin Wan Zhiping Le Yuhuan Liu Paul Chen Roger Ruan | 2009 | International Journal of Agricultural and Biological Engineering2009，2，4： | 5 |
| 3 | Microwave-Assisted Decarboxylation of Sodium Oleate and Renewable Hydrocarbon Fuel Production显示文摘The carboxyl terminal of sodium oleate has a stronger polarity than that of oleic acid;this terminal is more likely to be dipole polarized and ionically conductive in a microwave field.Sodium oleate was used as the model compound to study the decarboxylation of oleic acid leading to hydrocarbon formation via microwave-assisted pyrolysis technology.The pyrolysis gas,liquid,and solid products were precisely analyzed to deduce the mechanism for decarboxylation of sodium oleate.Microwave energy was able to selectively heat the carboxyl terminal of sodium oleate.During decarboxylation,the double bond in the long hydrocarbon chain formed a p-πconjugated system with the carbanion intermediate.The resulting p-πconjugated system was more stable and beneficial to the pyrolysis reaction(decarboxylation,terminal allylation,isomerization,and aromatization).The physical properties of pyrolysis liquid were generally similar to those of diesel fuel,thereby demonstrating the possible use of microwaves for controlling the decarboxylation of sodium oleate in order to manufacture renewable hydrocarbon fuels. | Wang Yunpu Liu Yuhuan Ruan Rongsheng Wen Pingwei Wan Yiqin Zhang Jinsheng | 2013 | China Petroleum Processing & Petrochemical Technology2013，15，3： | 5 |
| 4 | Fractionation and characterization of bio-oil from microwave-assisted pyrolysis of corn stover显示文摘Bio-oil from thermochemical conversion of biomass is a complex mixture of polar and non-polar compounds,and cannot be used directly as a combustion engine fuel due to its low heating value,high viscosity,chemical instability,and incomplete volatility.Mixed-solvent extraction was developed to fractionate bio-oils from microwave-assisted pyrolysis of corn stover to produce light oil(a mixture of light and inflammable fuel oil components from bio-oil)with low viscosity and low combustion residue,and high value chemicals.Different fractions from bio-oil were characterized using GC/MS and TG,and a major chemical(hydroxy-butanedioic acid diethyl ester)was separated. | Changyan Yang Bo Zhang Johannes Moen Kevin Hennessy Yuhuan Liu Xiangyang Lin Yiqin Wan Hanwu Lei Paul Chen Roger Ruan | 2010 | International Journal of Agricultural and Biological Engineering2010，3，3： | 4 |
| 5 | Synthesis of Biodiesel Using ZrO_2 Polycrystalline Ceramic Foam Catalyst in a Tubular Reactor显示文摘With the help of the ceramic foam research efforts and preparation techniques, the ZrO2 polycrystalline ceramic foam catalyst was synthesized, and its characteristics, including the crystal structure, the phase composition, the acid–base properties, and the microstructure, were analyzed by XRD, SEM, Py-IR, and BET techniques. The performance of the ZrO2 polycrystalline ceramic foam catalyst in a tubular reactor was investigated via biodiesel synthesis using S. wilsoniana oil and methanol. The effects of reaction conditions(i.e., reaction temperature, reaction pressure, and volume ratio of methanol to S. wilsoniana oil) on transesterification efficiency were investigated, and the reaction conditions were optimized using RSM. The optimum reaction temperature, reaction pressure, and volume ratio of methanol to S. wilsoniana oil were determined to be 290 ℃, 10 MPa, and 4:1, respectively. Under this condition, the FAME content in the product oil reached 98.38%. The performance of the ZrO2 polycrystalline ceramic foam catalyst synthesized in this work for biodiesel synthesis from S. wilsoniana oil with a moisture content of 7.1% and an acid value of 130.697 mg KOH/g was examined, and the FAME content in the product oil was found to be 93% and 97.67%, respectively. The FAME content in the product oil exceeded 97% after five consecutive cycles(12 h per cycle of use) of the catalyst. The proposed catalyst represents a new type of solid catalyst with excellent acid resistance, water resistance, esterification efficiency, and catalytic stability. | Wang Yunpu Fan Liangliang Dai Leilei Liu Yuhuan Ruan Roger Liu Shitao Zhang Xueqin Wan Yiqin | 2015 | China Petroleum Processing & Petrochemical Technology2015，17，3： | 3 |
| 6 | Microwave-assisted pyrolysis of biomass: Catalysts to improve product selectivity显示文摘 | Yiqin Wan Paul Chen Bo Zhang Changyang Yang Yuhuan Liu Xiangyang Lin Roger Ruan | 2009 | Journal of Analytical and Applied Pyrolysis2009，，1： | 1 |
| 7 | Micowave-assisted pyrolysis of biomass:Catalysts to improve product selectivity显示文摘 | Wan Yiqin Chen Paul Zhang Bo | 2009 | Journal of Analytical and Applied Pyrolysis2009，86，： | 1 |
| 8 | Microwave-assisted pyrolysis of biomass: Catalysts to improve product selectivity 显示文摘 | YIQIN WAN PAUL CHEN BO ZHANG | 2009 | Journal of Analytical and Applied Pyrolysis2009，86，： | 1 |
| 9 | Microwave-assisted pyrolysis of biomass: Catalysts to improve product selectivity显示文摘 | Yiqin Wan Paul Chen Bo Zhang Changyang Yang Yuhuan Liu Xiangyang Lin Roger Ruan | 2009 | Journal of Analytical and Applied Pyrolysis2009，，1： | 1 |
| 10 | Processing and properties of rigid polyurethane foams based on bio-oils from microwave-assisted pyrolysis of corn stover显示文摘A new kind of rigid polyurethane(PU)foam was synthesized from the oil phase of bio-oils from microwave-assisted pyrolysis of corn stover.The recipes for the PU foams consisted of polyol-rich bio-oils,water as blowing agent,polyethylene glycol(PEG)as both polyol donor and plasticizer,diphenylmethane-4,4’-diisocyanate(polymeric MDI)as cross-linking agent,silicon-based surfactant,and tin-based catalyst.The mechanical properties of rigid foams were measured with universal testing machine(Instron4206).The effects of individual ingredients on the physical and mechanical properties of the foams were studied.It was found that water content,bio-oil content,and isocyanate dosage were important variables in making PU foams in terms of mechanical strength,density,and cellular structure Under optimal conditions,the compression strength of the prepared PU foams reached 1130 kPa with a density of 152.9 g/L.The results show that bio-oils are potential renewable polyol sources for making rigid PU foams. | Jianping Wu Yuanhua Wang Yiqin Wan Hanwu Lei Fei Yu Yuhuan Liu Paul Chen Lirong Yang Roger Ruan | 2009 | International Journal of Agricultural and Biological Engineering2009，2，1： | 0 |
| 11 | Liquefaction of corn stover using industrial biodiesel glycerol显示文摘Corn stover was liquefied using an industrial biodiesel glycerol as a liquefying agent at atmospheric pressure and low temperature.It was found that the liquefaction yield increased with increasing glycerol-to-corn stover ratios.Sulfuric acid,added as a catalyst,was found to improve liquefaction yield.The hydroxyl number,moisture content,acid number,pH value,viscosity,density,elemental composition,and higher heating value of the liquefied corn stover samples were determined.The liquefied corn stover showed a high hydroxyl number of 270-310 mg KOH/g.Fourier transform infrared spectroscopy(FTIR)results revealed the functional groups and confirmed the existence of the OH group in the liquefied corn stover,indicating that the liquefied corn stover is indeed a source of polyols and a potential chemical stock for the synthesis of polymers. | Yuanhua Wang Jianping Wu Yiqin Wan Hanwu Lei Fei Yu Paul Chen Xiangyang Lin Yuhuan Liu Roger Ruan | 2009 | International Journal of Agricultural and Biological Engineering2009，2，2： | 0 |
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