alternativeАльтернативная энергетика и экология (ISJAEE)Alternative Energy and Ecology (ISJAEE)1608-8298Международный издательский дом научной периодики "Спейс10.15518/isjaee.2018.22-24.068-079alternative-1483Research ArticleВОЗОБНОВЛЯЕМАЯ ЭНЕРГЕТИКАRENEWABLE ENERGYПОЛУЧЕНИЕ БИОНЕФТИ ПУТЕМ ГИДРОТЕРМАЛЬНОГО СЖИЖЕНИЯ ВЛАЖНОЙ БИОМАССЫ МИКРОВОДОРОСЛЕЙBIO-OIL PRODUCTION BY HYDROTHERMAL LIQUEFACTION OF MICROALGAE BIOMASShttps://orcid.org/0000-0001-6549-9939ВласкинМ. С.VlaskinM. S.

Михаил Сергеевич Власкин - кандидат технических наук, заведующий лабораторией энергоаккумулирующих веществ

д. 13/2, ул. Ижорская, Москва, 125412

Mikhail Vlaskin - Ph.D. in Engineering, Head of the Energy Accumulating Materials Laboratory

13/2 Izhorskaya St., Moscow, 125412

presley1@mail.ruhttps://orcid.org/0000-0002-0642-9559ГригоренкоА. В.GrigorenkoA. V.

Анатолий Владимирович Григоренко - научный сотрудник лаборатории энергоаккумулирующих веществ

д. 13/2, ул. Ижорская, Москва, 125412

Anatolii Grigorenko Researcher at the Energy Accumulating Materials Laboratory

13/2 Izhorskaya St., Moscow, 125412

presley1@mail.ruhttps://orcid.org/0000-0002-8578-8495ЧерноваН. И.ChernovaN. I.

Надежда Ивановна Чернова - кандидат биологических наук, доцент, ведущий научный сотрудник научно-исследовательской лаборатории возобновляемых источников энергии географического факультета МГУ имени М.В. Ломоносова

д. 13/2, ул. Ижорская, Москва, 125412,

д. 1, Ленинские горы, Москва, 119991

Nadezhda Chernova - D.Sc. in Biology, Associate Professor, Senior Researcher at Renewable Energy Sources Laboratory (Lomonosov Moscow State University, Faculty of Geography)

13/2 Izhorskaya St., Moscow, 125412,

1 Leninskie Gori, Moscow, 119991

https://orcid.org/0000-0001-5836-8615КиселеваС. В.KiselevaS. V.

Софья Валентиновна Киселева - кандидат физико-математических наук, ведущий научный сотрудник научно-исследовательской лаборатории возобновляемых источников энергии географического факультета МГУ имени М.В. Ломоносова

д. 13/2, ул. Ижорская, Москва, 125412,

д. 1, Ленинские горы, Москва, 119991

Sofia Kiseleva - Ph.D. in Physics and Mathematics, Senior Researcher at the Renewable Energy Sources Laboratory, Lomonosov Moscow State University, Faculty of Geography

13/2 Izhorskaya St., Moscow, 125412,

1 Leninskie Gori, Moscow, 119991

k_sophia_v@mail.ruhttps://orcid.org/0000-0003-1808-1980КумарВ.KumarV.

Винод Кумар - кандидат химических наук, доцент кафедры химии

г. Прем Нагар, Дехрадун, ш. Уттаракханд, 248007

Vinod Kumar - Ph.D. in Chemistry, Assistant Professor, Department of Chemistry

Arcadia Grant, Chandanwari, Prem Nagar, Dehradun, Uttarakhand-248007

vinodkdhatwalia@gmail.comОбъединенный институт высоких температур РАНРоссияJoint Institute for High Temperatures of the Russian Academy of SciencesRussian FederationОбъединенный институт высоких температур РАН; МГУ имени М.В. ЛомоносоваРоссияJoint Institute for High Temperatures of the Russian Academy of Sciences; Lomonosov Moscow State UniversityRussian FederationУттаранчалский университетИндияUttaranchal UniversityIndia201804112018022-246879Copyright © Международный издательский дом научной периодики "Спейс, 20182018Международный издательский дом научной периодики "СпейсМеждународный издательский дом научной периодики "Спейсhttps://www.isjaee.com/jour/about/submissions#copyrightNoticehttps://www.isjaee.com/jour/article/view/1483

Работа посвящена исследованию процесса гидротермального сжижения микроводорослей и изучению физико-химических свойств полученной бионефти. Приведено описание новой энергоэффективной установки, созданной для проведения процесса гидротермального сжижения микроводорослей с рекуперацией тепла, и результаты исследования процесса гидротермального сжижения биомассы микроводорослей Arthrospira platensis при температуре 280 ºС (время выдержки – 1 ч). В результате экспериментально проведённого гидротермального сжижения была получена бионефть со значительно боле е высоким содержанием углерода и более низким содержанием кислорода и азота по сравнению с исходной биомассой. Би онефть была получена без использования органических растворителей. Выход бионефти составил 29,5 % с тепл отой сгорания 34,2 МДж/кг. Для оценки фракционного состава бионефти был проведен термогравиметрический анализ: около 80 % пришлось на фракцию бионефти с температурой испарения до 400 ºС. Выход бензиновой фракции бионефти составил 26 %. Одним из основных преимуществ технологии гидротермального сжижения является возможность достижения относительно высокой термодинамической энергоэффективности процесса путем оптимизации теплотехнической схемы установки. Впервые проведены сравнительные термодинамические оценки затрат энергии при гидротермальном сжижении и сушке биомассы микроводорослей, а также вклада рекуперации тепловой энергии в повышение эффективности гидротермального сжижения. Представлены результаты расчетов, показывающие, что благодаря рекуперации тепла гидротермальное сжижение обладает высокой термодинамической эффективностью и поэтому представляется весьма перспективным способом переработки биомассы микроводорослей в биотопливо. Согласно полученным оценкам, рекуперация позволяет экономить до 35 % тепловой энергии, затрачиваемой на гидротермальное сжижение.

This article presents a new energy efficient installation created for the process of hydrothermal liquefaction of microalgae with heat recovery. The studying results of the microalgae biomass (Arthrospira platensis) hydrothermal liquefaction at a temperature of 280 °C (holding time is 1 h) are shown. By hydrothermal liquefaction, bio-oil was obtained with much higher content of carbon and lower content of oxygen and nitrogen than the original biomass. Bio-oil was obtained without the use of organic solvents. The output of bio-oil is 29.5%, the heat of combustion is 34.2 MJ / kg. Thermogravimetric analysis was carried out to evaluate the fractional composition of bio-oil. The fraction of bio-oil with evaporation temperature up to 400 °C is about 80 %. The output of the petrol fraction of bio-oil is 26%. The study first held the comparative thermodynamic estimates of energy consumption during hydrothermal liquefaction and drying microalgae biomass, as well as the contribution of thermal energy recovery to increasing the efficiency of hydro-thermal liquefaction. The article presents the results of calculations showing that due to heat recovery, hydrothermal liquefaction has high thermodynamic efficiency and is therefore a very promising way of processing the microalgae biomass for obtaining biofuel. According to the estimates, recuperation can save up to 35% of the thermal energy spent on hydrothermal liquefaction.

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The authors declare that there are no conflicts of interest present.