Abstract
The article deals with the recent developments in the fuel industry, considering the permanent increasing requirements for fuel quality and environmental safety. The work aims to study various technological modes at the rectification unit to produce fuel bioethanol from lignocellulosic biomass. The main goals are to solve applied scientific problems of rational designing and technological optimization to obtain boundaries of energy consumption to ensure the quality of bioethanol sufficient for a consumer. Recent approaches for numerical simulation of chemical technological processes were applied to study the operating processes and optimize technological parameters. The plant model was designed from various modules that allow us to simulate technological processes efficiently and accurately for all the primary units of the rectification equipment. The methodology based on the activity coefficient UNIFAC model of phase equilibrium was applied. As a result, a mixture with 74% of bioethanol 9% of impurities was obtained in the brew column. In the epuration column, a mixture of 46% bioethanol and 2.2% of impurities was obtained in bottoms. Finally, in the alcohol column, the mass fraction of distillate of 96.9% and impurities of 2.7% were reached. The numerical simulation results can be applied in recent fuel technologies and designing the corresponding biofuel plants.
Highlights
Since fuels obtained from crude oil increase the amount of carbon dioxide in the atmosphere when burned, it is planned to use alternative energy sources worldwide
According to “OECD-FAO Agricultural Outlook 2020–2029”, world bioethanol production is projected to grow from 122 billion liters to 143 billion liters by 2028
According to the results presented above, the mass fraction of bioethanol at different production stages is not the primary criterion for determining the energy consumption of heating steam directly
Summary
Since fuels obtained from crude oil (as a non-renewable source) increase the amount of carbon dioxide in the atmosphere when burned, it is planned to use alternative energy sources worldwide. Governments stimulate the use of renewable energies and resources with the following primary goals: to secure access to energy, to mitigate climate changes, to develop/maintain agricultural activities, and to ensure food safety [2,3]. One way to solve this problem, considering in many countries, is the wide use of biofuels as a mixture of motor types of gasoline with oxygenates, bioethanol [4]. According to “OECD-FAO Agricultural Outlook 2020–2029”, world bioethanol production is projected to grow from 122 billion liters (over the base period) to 143 billion liters by 2028. Global biodiesel production will be reached by 44 billion liters [5]. Leading biofuel producers are the USA, Brazil, Indonesia, Germany, China, Thailand, and Spain [6]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
