MANUFACTURING GASEOUS PRODUCTS BY PYROLYSIS OF MICROALGAL BIOMASSстатья

Статья опубликована в высокорейтинговом журнале

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Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 24 января 2020 г.

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[1] Manufacturing gaseous products by pyrolysis of microalgal biomass / N. I. Chernova, S. V. Kiseleva, O. M. Larina, G. A. Sytchev // International Journal of Hydrogen Energy. — 2019. — Vol. 44, no. 55. — P. 001–008. Algal biomass is considered as an alternative raw material for biofuel production. The search for new types of raw materials including high-energy types of microalgae remains relevant, since the share of motor fuels in the world energy balance remains consistently high (about 35%) with the oil price characterized by high volatility. The authors have considered the advantages of microalgae as raw materials for fuel production. Biochemical and thermochemical conversion are proposed as technologies for their processing. The paper presents the results of the study on the pyrolysis of the biomass of the blue-green microalgae/cyanobacterium Arthrospira platensis rsemsu 1/02-P clonal culture from the collection of the Research Laboratory of Renewable Energy Sources of the Lomonosov Moscow State University. The experimental investigation on the pyrolysis process of microalgal biomass has been carried out with the experimental setup made at the Institute of High Temperatures RAS in pure nitrogen 6.0 to create an oxygen-free medium with a linear heating rate of 10ºС/min from room temperature to 1,000 ºС. The entire pyrolysis process has proceeded in the endothermic region. The specific values for solid residue, pyrolysis liquid and gaseous products have been experimentally determined. The following products have been manufactured by pyrolysis of microalgal biomass weighing 15g: 1) char with a solid residue mass of 2.68g, or 17.7% of MAB initial mass (while 9.3% of MAB initial mass has remained in the reactor); 2) pyrolysis liquid with a mass of 3.3g, or 21.9% of initial mass; 3) noncondensable pyrolysis gases, 1.15L. The specific volumetric gas yield (amount of gas released from 1 kg of RM) has amounted to 0.076nm3/kg. In the paper, the analysis of the composition and specific volumetric yield of non-condensable pyrolysis gases produced in the pyrolysis process depending on temperature has been carried out. It is shown that the proportion of high-calorific components of the gas mixture (hydrogen, methane and carbon monoxide) increases with the temperature increase. The heating value assessment for the mixture of these gases has been performed as well. Key words: biomass; microalgae; cyanobacteria; biofuel; pyrolysis; gaseous products. [ DOI ]

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