The Optimization of Plasma Catalytic Liquefaction Technique for the Conversion of Sawdust Into Value-Added Chemicals

Non-thermal plasma is an alternative technology of exploiting biomass for efficient production of value added energy carriers. In this study, plasma catalytic liquefaction (PCL) system is successfully developed to achieve rapid and efficient liquefaction of sawdust in the presence of co-solvent polyethylene glycol 200 (PEG 200) and glycerin as well as the acid catalyst H2SO4. The influences of different operating factors such as the catalyst concentration, reaction time, molar ratio of PEG 200 and glycerin and the power supply are investigated in terms of the liquefaction yield and solution temperature, while the roles of the applied voltage and the duty cycle of power supply in the PCL process are discussed in detail. Experimental results show that the sawdust could be completely liquefied into crude bio-oil with a high heating value (HHV) of 19.18 MJ/kg in the mixture containing sawdust and solvent in a ratio of 1/7, and 1 wt.% catalyst H2SO4. Increasing the applied voltage and duty cycle are more efficient giving higher yield of liquid products. Based on the analysis of the processing conditions, suggested that the enhanced performance of the PCL process is linked to the superiority of heating that induced by electric field and the presence of quantities reactive species during the plasma discharge. The physiochemical characteristics of the biomass sample and the liquefied products are interpreted by using elemental analysis, thermogravimetric analysis, Fourier transform infrared spectroscopy (FTIR) and the identities and concentration of the liquid products are determined by gas chromatography–mass spectrometry (GC-MS).

[1]  Y. Shotland,et al.  Glycerol as solvent and hydrogen donor in transfer hydrogenation–dehydrogenation reactions , 2009 .

[2]  Xianhui Zhang,et al.  The universality of lignocellulosic biomass liquefaction by plasma electrolysis under acidic conditions. , 2018, Bioresource technology.

[3]  U. Kogelschatz.  Dielectric-Barrier Discharges: Their History, Discharge Physics, and Industrial Applications , 2003 .

[4]  Mary J. Biddy,et al.  Techno-economic analysis of liquid fuel production from woody biomass via hydrothermal liquefaction (HTL) and upgrading , 2014 .

[5]  Chongli Zhong,et al.  A comparative experimental study on the liquefaction of wood , 2004 .

[6]  Chuguang Zheng,et al.  Research progress of pollutants removal from coal-fired flue gas using non-thermal plasma , 2017 .

[7]  Siqun Wang,et al.  Rapid and solvent-saving liquefaction of woody biomass using microwave-ultrasonic assisted technology. , 2016, Bioresource technology.

[8]  G. Huber,et al.  Renewable Chemical Commodity Feedstocks from Integrated Catalytic Processing of Pyrolysis Oils , 2010, Science.

[9]  Zifeng Yan,et al.  Hydro-liquefaction of sawdust and its three components in supercritical ethanol with [BMIM]Cl/NiCl2 catalyst , 2015 .

[10]  E. Hassan,et al.  Polyhydric alcohol liquefaction of some lignocellulosic agricultural residues , 2008 .

[11]  Wenjun Ning,et al.  Effects of trace of nitrogen on the helium atmospheric pressure plasma jet interacting with a dielectric substrate , 2018 .

[12]  Charlotte K. Williams,et al.  The Path Forward for Biofuels and Biomaterials , 2006, Science.

[13]  Anuj Kumar,et al.  Liquefaction of lignocellulosic materials and its applications in wood adhesives—A review , 2018, Industrial Crops and Products.

[14]  M. Tazerout,et al.  Catalytic hydroliquefaction of charcoal CCB (copper, chromium and boron)-treated wood for bio-oil production: Influence of CCB salts, residence time and catalysts , 2014 .

[15]  Xianhui Zhang,et al.  Fast liquefaction of bamboo shoot shell with liquid-phase microplasma assisted technology. , 2016, Bioresource technology.

[16]  Feng Liu,et al.  The influence of pulse parameters on the downstream uniformity of linear-field jet array in argon , 2018, AIP Advances.

[17]  Steven C. Ricke,et al.  Lignocellulosic biomass for bioethanol production: current perspectives, potential issues and future prospects. , 2012 .

[18]  Junhai Liu,et al.  Microwave-assisted direct liquefaction of Ulva prolifera for bio-oil production by acid catalysis. , 2012, Bioresource technology.

[19]  Guangming Zeng,et al.  Sub- and supercritical liquefaction of rice straw in the presence of ethanol–water and 2-propanol–water mixture , 2007 .

[20]  B. Weckhuysen,et al.  The catalytic valorization of lignin for the production of renewable chemicals. , 2010, Chemical reviews.

[21]  Z. Zhao,et al.  Microwave-assisted conversion of lignocellulosic biomass into furans in ionic liquid. , 2010, Bioresource technology.

[22]  J. Lange,et al.  Wood Liquefaction: Role of Solvent , 2017 .

[23]  Chao Wang,et al.  Comparative studies of products produced from four different biomass samples via deoxy-liquefaction. , 2008, Bioresource technology.

[24]  Peng-Chao Jiang,et al.  Atmospheric Pressure Gas–Liquid Diffuse Nanosecond Pulse Discharge Used for Sterilization in Sewage , 2014 .

[25]  X. Tu,et al.  Gliding arc plasma for CO2 conversion: Better insights by a combined experimental and modelling approach , 2017 .

[26]  Jingxin Wang,et al.  Directional liquefaction of lignocellulosic biomass for value added monosaccharides and aromatic compounds , 2019, Industrial Crops and Products.

[27]  Guang-Zhou Qu,et al.  Surface modification of a granular activated carbon by dielectric barrier discharge plasma and its effects on pentachlorophenol adsorption , 2013 .

[28]  Xianhui Zhang,et al.  Mechanism and optimization for plasma electrolytic liquefaction of sawdust. , 2017, Bioresource technology.

[29]  Patrick J. Cullen,et al.  High-Performance Plasma-Enabled Biorefinery of Microalgae into Value-added Products. , 2019, ChemSusChem.

[30]  Xianhui Zhang,et al.  Highly Effective Inactivation of Pseudomonas sp HB1 in Water By Atmospheric Pressure Microplasma Jet Array , 2012, Plasma Chemistry and Plasma Processing.

[31]  Yujie Zhou,et al.  Qualitative analysis of products formed during the acid catalyzed liquefaction of bagasse in ethylene glycol. , 2007, Bioresource technology.

[32]  C. Snape,et al.  Impact of solvent type and condition on biomass liquefaction to produce heavy oils in high yield with low oxygen contents , 2015 .

[33]  J. Akhtar,et al.  A review on process conditions for optimum bio-oil yield in hydrothermal liquefaction of biomass , 2011 .

[34]  Jo-Shu Chang,et al.  Thermochemical conversion of microalgal biomass into biofuels: a review. , 2015, Bioresource technology.

[35]  C. Xu,et al.  Production of Heavy Oils with High Caloric Values by Direct Liquefaction of Woody Biomass in Sub/Near-critical Water , 2008 .

[36]  Jixiang Zhang,et al.  Co-liquefaction of swine manure and mixed-culture algal biomass from a wastewater treatment system to produce bio-crude oil , 2014 .

[37]  Zhangying Ye,et al.  Co-liquefaction of swine manure and crude glycerol to bio-oil: model compound studies and reaction pathways. , 2012, Bioresource technology.

[38]  Zhi Fang,et al.  Cold atmospheric plasma activated water as a prospective disinfectant: the crucial role of peroxynitrite , 2018 .

[39]  Maohong Fan,et al.  The effects of cornstalk addition on the product distribution and yields and reaction kinetics of lignite liquefaction , 2014 .

[40]  Wenyao Li,et al.  Thin insulating film deposition on copper by atmospheric-pressure plasmas , 2017 .

[41]  Fangeng Chen,et al.  Liquefaction of wheat straw and preparation of rigid polyurethane foam from the liquefaction products , 2009 .

[42]  Liyi Ye,et al.  Liquefaction of bamboo shoot shell for the production of polyols. , 2014, Bioresource technology.

[43]  Donghong Yu,et al.  Hydrothermal liquefaction of barley straw to bio-crude oil: Effects of reaction temperature and aqueous phase recirculation , 2015 .

[44]  Hongzhang Chen,et al.  Near-infrared analysis of the chemical composition of rice straw , 2007 .

[45]  Wenqiao Yuan,et al.  Operating condition optimization of corncob hydrothermal conversion for bio-oil production , 2013 .

[46]  Jaehoon Kim,et al.  Supercritical ethanol as an enhanced medium for lignocellulosic biomass liquefaction: Influence of physical process parameters , 2013 .

[47]  X. Tu,et al.  Nonoxidative Conversion of Methane in a Dielectric Barrier Discharge Reactor: Prediction of Reaction Performance Based on Neural Network Model , 2014 .

[48]  Zhang Hairong,et al.  Liquefaction and characterization of acid hydrolysis residue of corncob in polyhydric alcohols , 2012 .

[49]  Linghong Zhang,et al.  Overview of recent advances in thermo-chemical conversion of biomass. , 2010 .

[50]  F. Pua,et al.  Comparative studies of products obtained from solvolysis liquefaction of oil palm empty fruit bunch fibres using different solvents. , 2011, Bioresource technology.