Authors: Artem A. LITVIN graduated from Astrakhan State Technical University in 2013 as a BSc with a specialty of “Chemical engineering and biotechnology”. Currently he is working on Master thesis at Gubkin Russian State University of Oil and Gas. He is also an engineer of the department of Physical and Colloidal Chemistry. The area of scientific interests includes synthesis of ionic liquids and application of ionic liquids for desulphurization of hydrocarbon fuels, pretreatment of lignocellulosic biomass for further obtaining of high-energy products. He is an author of 10 scientific publications. E-mail: artemich92@mail.ru
Iakov A. MASIUTIN graduated from Gubkin Russian State University of Oil and Gas in 2012 as a MSc in Chemical Technology and Biotechnology. Currently he is a PhD student at Gubkin Russian State University of Oil and Gas, engineer of the department of Physical and Colloid Chemistry of Gubkin Russian State University of Oil and Gas. He is a specialist in the field of technologies of biofuels production, synthesis of ionic liquids, application of spectroscopic methods for analysis of petroleum and petroleum products. He is an author of more than 30 scientific publications. E-mail: YMA1989@mail.ru
Andrei A. NOVIKOV graduated from Perm State University in 2007 as a MSc in chemistry. He completed his postgraduate studies at Gubkin Russian State University of Oil and Gas in 2010. He is a PhD in chemistry, head of the Center for Nanodiagnostics at Gubkin Russian State University. Andrei Novikov is a specialist in the fields of organic chemistry, microbiology, and nanodiagnostics. He is an author of more than 40 scientific publications. E-mail: gubkin.biotech@gmail.com
Vladimir A. VINOKUROV graduated from Moscow Institute of Petrochemical and Gas industry in the specialty of “Technical engineer”, in 1975 he completed his postgraduate studies ibidem. He is a doctor of Chemical Sciences, Professor, head of the department of Physical and Colloid Chemistry at Gubkin Russian State University of Oil and Gas. Vladimir Vinokurov is a prominent specialist in the field of surface chemistry and disperse systems chemistry, synthesis and stabilization of nanoparticles and biotechnology. He is an author of over 200 scientific publications. E-mail: vinok_ac@mail.ru
Abstract: The impact of various pretreatment techniques of cellulosic feedstock (microcrystalline cellulose Avicel, pine sawdust) on the degree of cellulose crystallinity was studied. By means of powder diffractionit was established that the highest impact on lowering of the cellulose crystallinity degree was achieved through pretreatment by the mixture of ionic liquidsand by preliminary γ-irradiation with the dose of absorbance of 100 kGy. The substrates obtained through pretreatment could further be subjected to hydrolysis to glucose, which in turn is a source of ethanol, butanol-1, 2,5-dimethylfuran, and some other compounds that could be used as high-energy additives to conventional hydrocarbon fuels
Index UDK: 663.534 + 577.3 + 544.478.42 + 661.728.7
Keywords: cellulose, crystallinity, irradiation pretreatment, ionic liquids, oxidative pretreatment, hydrolysis, powder diffraction
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