Systematization and Technical and Economic Analysis of Methods and Technologies Conversion of Technical Oils Into Alternative Fuels (Review)

Kyrychenko, V.I.; Kyrychenko, V.V.; Nezdorovin, V.P.

doi:10.33070/etars.2.2022.02

Cited by 2 publications

(1 citation statement)

References 7 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…У òðàíñпîðò-í³é гàлóç³ пðîäóêòè пеðеðîбêè б³îìàñè, çîêðеìà б³îäèçелü òà б³îеòàíîл, âèêîðèñòîâóюòü яê äîбàâêè äî ìîòîðíèõ пàлèâ. Пеðш³é îäеðжóюòü пеðеðîбêîю ðîñлèííèõ îл³é, яê еñòеð³â, шляõîì àл-êîгîл³çà, еñòеðîл³çà é àцèäîл³çà [1,2].…”

Section: акòуальн³ñòьunclassified

Application of Altering Pressure Impulses for Delignification of Wheat Straw

Obodovych,

Sydorenko

2023

Energ. Tech. & Res. Sav.

View full text Add to dashboard Cite

Based on the growth of global energy demand, the limitation of fossil energy sources, and the growth of greenhouse gas emissions due to the use of fuels based on them, there is a need for wider use of renewable energy sources in particular biomass. The main purpose of the stage of pretreatment of lignocellulosic raw materials for hydrolysis in the second-generation fuel ethanol production technology is to destroy the heterogeneous matrix, increase the surface area and porosity of the cellulosic material, and release carbohydrates from the lignin bond, thereby improving enzymatic digestibility. The aim of the study is to compare the effect of alternating impulses of pressure and autoclaving on lignin removal during the pretreatment of wheat straw for enzymatic hydrolysis in the technology of fuel ethanol production. It was determined that increasing the alkali concentration from 0.5 to 4 % wt. reduces the lignin content in the sample from 51.0 to 24.5 % of the initial content for autoclaving at 90 °С, at 121 °С the content of lignin decreases from 40.6 to 17.5 %. Processing at a temperature of 90 °С reduces the lignin content from 43.0 to 18.5 %. The minimum lignin content in the sample was 18.5 % of the initial content for autoclaving at 90 °C for 60 min process, at 121 °С the minimum content of lignin in the sample and the amount of released lignin was observed for 60 min and amounted to 17.5 %. Processing leads to the lignin content in the sample up to 17.5 % for 120 min. The minimum content of lignin in the sample for autoclaving was 17.5 % at 121 °С. For processing, the maximum value of removed lignin was 18.5 % at 90 °С. It was determined that the addition of alternating pressure pulses allows, at atmospheric pressure and a temperature lower than 100 °С, to obtain a degree of lignin removal comparable to the degree of lignin removal in an autoclave at a temperature of 121 °С, which is usually the basis for the process of pretreatment of plant raw materials for hydrolysis in the technology of obtaining fuel ethanol. Bibl. 16, Fig. 5.

show abstract

Section: акòуальн³ñòьunclassified

Application of Altering Pressure Impulses for Delignification of Wheat Straw

Obodovych,

Sydorenko

2023

Energ. Tech. & Res. Sav.

View full text Add to dashboard Cite

show abstract

A Methodical Approach to Forecasting the Consumption of Petroleum Products by Their Main Types

Malyarenko

Maіstrenko

2023

Energ. Tech. & Res. Sav.

View full text Add to dashboard Cite

The article presents the development of a mathematical model for forecasting the demand for petroleum products using a comprehensive method for forecasting the consumption of petroleum products by individual types. The mathematical model allows forecasting the consumption of petroleum products in the country (TOP-level) and types of economic activity (DOWN-level) for transportation and conversion into electrical and thermal energy. The purpose of the research is the development of a methodical approach to forecasting the consumption of petroleum products with the determination of the forecast structure of the consumption of petroleum products by types using a mathematical model of forecasting energy consumption using a comprehensive method. Determining forecast volumes by individual types of oil products gives a greater discrepancy between forecast and actual data than forecasting oil products together. The forecast volume of oil product consumption is calculated to draw up the country's forecast energy balance. The forecast is determined in two stages: 1) forecasting of the total volume of consumption of petroleum products by country and aggregated types of economic activity, 2) forecasting of the structure of consumption of petroleum products by their main types. This approach is due to the fact that the structure of petroleum fuel consumption changes significantly depending on the prices of fuel and vehicles. To forecast the consumption of the main types of petroleum products, an analysis of statistical data for the retrospective period was used and the trends of their consumption were taken into account, as well as the realities of today: the war on the territory of Ukraine, the destruction of the industrial and energy infrastructure, which will require restoration for a long time. The provided forecasts will make it possible to assess the country’s need for certain types of petroleum fuel, to determine the sufficient volumes of own production and the necessary volumes of oil product imports. Bibl. 32, Tab. 3.

show abstract

Systematization and Technical and Economic Analysis of Methods and Technologies Conversion of Technical Oils Into Alternative Fuels (Review)

Cited by 2 publications

References 7 publications

Application of Altering Pressure Impulses for Delignification of Wheat Straw

Application of Altering Pressure Impulses for Delignification of Wheat Straw

A Methodical Approach to Forecasting the Consumption of Petroleum Products by Their Main Types

Contact Info

Product

Resources

About