A review on nano-catalysts and biochar-based catalysts for biofuel production

The paper presents the results of long-term research on the oil productivity and chemical composition of soybean oil of the Northern ecotype varieties in the Central Non-Black Earth Region. The authors consider its possible use for biodiesel production. Experiments on growing soybeans were carried out on the experimental fi eld of Russian State Agrarian University –Moscow Timiryazev Agricultural Academy (2008-2019) on recognized ultra-early ripening varieties of the Northern ecotype Mageva, Svetlaya, Okskaya (ripeness group 000). Tests were set and the research results were analyzed using standard approved methods. It has been shown that in conditions of high latitudes (57°N), limited thermal resources of the Non-Chernozem zone of Russia (the sum of active temperatures of the growing season not exceeding 2000°С), the yield and productivity of soybeans depend on the variety and moisture supply. Over the years, the average yield of soybeans amounted to 1.94 … 2.62 t/ha, oil productivity – 388 … 544 kg/ha, oil content – 19…20%, the content of oleic and linoleic fatty acids in oil – 60%, and their output from seeds harvested – 300 kg/ha. It has been established that as soybean oil and diesel fuel have similar properties,they can be mixed by conventional methods in any proportions and form stable blends that can be stored for a long time. Experimental studies on the use of soybean oil for biodiesel production were carried out on a D-245 diesel engine (4 ChN11/12.5). The concentrations of toxic components (CO, CHx, and NOx) in the diesel exhaust gases were determined using the SAE-7532 gas analyzer. The smoke content of the exhaust gases was measured with an MK-3 Hartridge opacimeter. It has been experimentally established that the transfer of a diesel engine from diesel fuel to a blend of 80% diesel fuel and 20% lubrication oil leads to a change in the integral emissions per test cycle: nitrogen oxides in 0.81 times, carbon monoxide in 0.89 times and unburned hydrocarbons in 0.91 times, i.e. when biodiesel as used as a motor fuel in a serial diesel engine, emissions of all gaseous toxic components are reduced. The study has confi rmed the expediency of using soybeans of the Northern ecotype for biofuel production.

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Understanding biofuel production systems from an economic and environmental perspective

10.31274/etd-180810-5413 ◽

2016 ◽

Author(s):

Longwen Ou

Keyword(s):

Production Systems ◽

Biofuel Production

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PROSPECTS FOR THE DEVELOPMENT OF BIOFUEL PRODUCTION: WORLD EXPERIENCE

Economy, labor, management in agriculture ◽

10.33938/193-45 ◽

2019 ◽

pp. 45-53

Author(s):

N.D. Medvedeva

Keyword(s):

Biofuel Production

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The sugar and alcohol industry in the biofuels and cogeneration era: a paradigm change (part II)

Sugar Industry ◽

10.36961/si15275 ◽

2014 ◽

pp. 97-104 ◽

Cited By ~ 2

Author(s):

Electo Eduardo Silv Lora ◽

Mateus Henrique Rocha ◽

José Carlos Escobar Palacio ◽

Osvaldo José Venturini ◽

Maria Luiza Grillo Renó ◽

...

Keyword(s):

Large Scale ◽

New Technologies ◽

Process Integration ◽

Animal Feed ◽

Raw Materials ◽

Biofuel Production ◽

New Paradigm ◽

Alcohol Industry ◽

Feed Production ◽

Steam Parameters

The aim of this paper is to discuss the major technological changes related to the implementation of large-scale cogeneration and biofuel production in the sugar and alcohol industry. The reduction of the process steam consumption, implementation of new alternatives in driving mills, the widespread practice of high steam parameters use in cogeneration facilities, the insertion of new technologies for biofuels production (hydrolysis and gasification), the energy conversion of sugarcane trash and vinasse, animal feed production, process integration and implementation of the biorefinery concept are considered. Another new paradigm consists in the wide spreading of sustainability studies of products and processes using the Life Cycle Assessment (LCA) and the implementation of sustainability indexes. Every approach to this issue has as an objective to increase the economic efficiency and the possibilities of the sugarcane as a main source of two basic raw materials: fibres and sugar. The paper briefly presents the concepts, indicators, state-of-the-art and perspectives of each of the referred issues.

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AN ECONOMIC STUDY FOR THE IMPACT OF BIOFUEL PRODUCTION EXPANSION

Menoufia Journal of Agricultural Economic and Social Sciences ◽

10.21608/mjabes.2018.123581 ◽

2018 ◽

Vol 3 (2) ◽

pp. 259-260

Author(s):

I. S. Ali ◽

A. M. Taryal ◽

S. A. Abou-El Naga ◽

M. M. Abd-El Menem

Keyword(s):

Biofuel Production ◽

Economic Study ◽

The Impact

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Final Report: Scale-up of Algal Biofuel Production Using Waste Nutrients

10.2172/1475450 ◽

2018 ◽

Author(s):

Tryg Lundquist ◽

◽

Ruth Spierling ◽

◽

Keyword(s):

Scale Up ◽

Biofuel Production ◽

Final Report ◽

Algal Biofuel

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Reactivity of Barbituric, Thiobarbituric Acids and Their Related Analogues: Synthesis of Substituted and Heterocycles-based Pyrimidines

Current Organic Chemistry ◽

10.2174/1385272824999200608134859 ◽

2020 ◽

Vol 24 (14) ◽

pp. 1610-1642 ◽

Cited By ~ 1

Author(s):

Ahmed El-Mekabaty ◽

Hassan A. Etman ◽

Ahmed Mosbah ◽

Ahmed A. Fadda

Keyword(s):

Xanthine Oxidase ◽

Multicomponent Reactions ◽

Biological Activities ◽

Present Review ◽

Urease Inhibitors ◽

Effective Catalyst ◽

Inhibitory Activities ◽

Catalyst Reusability ◽

High Yields ◽

Nano Catalysts

Barbituric, thiobarbituric acids and their related analogs are reactive synthons for the synthesis of drugs and biologically, and pharmaceutically active pyrimidines. The present review aimed to summarize the recent advances in the synthesis of different alkylsubstituted, fused cycles, spiro-, and binary heterocycles incorporated pyrimidine skeleton based on barbituric derivatives. In this sequence, the eco-friendly techniques under catalytic conditions were used for the diverse types of multicomponent reactions under different conditions for the synthesis of various types of heterocycles. Nano-catalysts are efficient for the synthesis of these compounds in high yields and effective catalyst reusability. The compounds are potent antibacterial, cytotoxic, xanthine oxidase inhibitory activities, and attend as urease inhibitors. The projected mechanisms for the synthesis of pyranopyrimidines, benzochromenopyrimidines, chromeno-pyranopyrimidines, spiroxyindoles, oxospiro-tricyclic furopyrimidines, pyrimidine-based monoand bicyclic pyridines were discussed. The potent and diverse biological activities for instance, antioxidant, antibacterial, cytotoxic, and xanthine oxidase inhibitory activities, as well as urease inhibitors, are specified.

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