35 research outputs found
AB "Lithuanian Railways'' waste lubricating oils reprocessing plant.
No full textThis master thesis presents projection of the AB "Lithuanian Railways'' waste lubricating oils reprocessing plant with the capacity of 150 l/h. The aim of the project is to reduce the ash content of waste oils and meet the requirements posed by liquid fuels
Cordyceps militaris processing: separation and investigation of biologically active compounds.
No full textIn this master's final degree project, the Cordyceps militaris mushroom processing plant is designed, where it is planned to extract biologically active substances. The study determined which ratio of biomass to solvents has the highest yield, and primary, secondary and tertiary extractions were compared with each other. Data on raw materials and products recycled during the process are also provided. Based on these data, a technological scheme of the process has been developed, which must ensure the processing of 65 tons of mushrooms per year. A factory and a plot have been designed, showing the layout of the building in the company's territory. The project also presents the results of the company's economic and financial calculations, assessed the health risks of employees and performed an environmental assessment
Reforming Unit of Naphta.
No full textThis bachelor thesis presents the designed catalytic reforming unit processing 1 300 000 tonnes of raw material per year. During the process of reforming the chemical reactions of aromatization and isomerization happen which lead to the increased gasoline octane number. The stationary layer bifunctional catalyst and hydrogen stream are used to carry out the process. The calculations of the catalytic reforming reactor and auxiliary machines - furnace, the separator, the stabilization column, pump and heat exchanger have been performed. The issues concerning labour safety and environment protection have been solved
Vacuum gas oil catalytic cracking unit.
No full textThis project’s objective is to design hydrotreated vacuum gas oil catalytic cracking unit, which refines 2 100 000 tons of raw material per year. The unit is continuously working 365 days per year. Mass and heat balances of the unit’s reactor were calculated. Also, technological calculations were made for other devices of the unit, some of which are: raw material heat exchanger, centrifugal pump, separator – reflux drum and the top and bottom temperatures of product rectification column
Concentration of cannabidiol by multistage molecular distillation from Cannabis sativa extracts.
No full textIn this master’s degree project molecular distillation of Cannabis sativa extracts technological line was designed. Necessary equipment was picked to guarantee yearly capacity 200 tones. In this final project data about primary material and final distillation products were submitted. Methodology and results of experiments using pilot plant were described. Based on conclusions made from experiment, technological line was designed to ensure smooth production. Economical and financial calculations were made, employees’ safety and health risk evaluation and environmental protection evaluation were performed
Productivity improvement of higher octane number gasoline.
No full textThis is the final master project of alkylation unit, which has the input of 525 000 tons per year. The feed in order to avoid catalyst losses is supplied through water adsorbers in which moisture is removed. Downstream of adsorbers is supplied to reaction zone where stream is mixed with concentrated sulphuric acid. Product from reaction zone further flows through adsorbers in which all of acidic compound is removed. Final unit product – alkylate flows directly to the storage tanks. The work either summarizes the technological calculations of the reactor-heat exchanger, centrifugal pump and columns, the material balances were made. Particular attention was paid to the safety and health of works, occupational risks, occupational hygiene and fire safety were assessed. Physical, chemical, ergonomic and psychosocial factors in the workplace were assessed, and personal protective equipment was selected. Moreover, economic and financial calculations were evaluated, environmental analysis was performed, construction and structural design solutions were designed, possibilities of pollution and reduction of waste were considered, and the technological scheme of the unit was presented
Plastiko atliekų termolizės skystojo produkto hidrogenizacijos įrenginys AB „ORLEN Lietuva“.
No full textThe Master’s thesis investigates possibilities of refining scrap plastics (polyethylene, polypropylene, ethylene propylene diene monomer rubber and polystyrene) to value added products. It is estimated that in Lithuania the waste plastics yields 30000 tons each year which generally are disposed in the landfills or incinerated. The thesis proposes the other and more profitable way to refine them to gasoline, jet, diesel and fuel oil components for the manufacture of commercial products atAB „ORLEN Lietuva“ refinery
Processing of waste oil products into base oil.
No full textIn this Master's Final Degree Project, an improvement of the production line for processing petroleum waste is designed. This improvement enables the recycling of petroleum waste into base oil and other high-demand products such as gasoline and diesel. The enhancement is implemented in an existing company where the production line previously ended at atmospheric distillation. The upgrade involves the installation of two main pieces of equipment – a vacuum distillation column and a module of two adsorbers filled with an adsorbent (Fuller's earth). The project includes a survey of the literature related to petroleum waste recycling, an experimental part describing the processes of atmospheric distillation, vacuum rectification, viscosity index determination, and adsorption with Fuller's earth. The engineering section provides a technological process diagram with description and key technological calculations, a description of construction solutions, financial and economic calculations, and an environmental assessment. In the safety and health of employees part, the characteristics of the designed facility are presented, along with a occupational risk assessment of the work environment, descriptions of production safety, hygiene, and fire safety requirements. The drawings section includes principal technological scheme, site plan, and production module with sectional drawing created with AutoCAD software on A1 format sheets
Vacuum Flasher Unit of Short Residue Visbreaking Product.
No full textThe purpose of this project is to design a Vacuum Flasher Unit of Short Residue Visbreaking Product, which in low pressure allows to separate light oil fractions, which can be used as boiler fuel component, without thermal cracking. In this Unit pressure is lowered, because that’s increases light products evaporation. Visbreaking product residue is used as feed to this Unit. Also, in this bachelor work, I did calculations vacuum flasher unit and other equipment: centrifugal pump, heat exchanger, heater, separator
Active components are carried out from supercritical CO2 extract of Cannabis sativa by vacuum distilation.
No full textIn this conclusive master degree project the technological scheme of vacuum distilation and the calculations of technological, economical units are made. The technological range use 50 tons of supercritical CO2 extract of Cannabis sativa, getting better concentrate of active components in product. In this project information about Cannabis Sativa, its growing, its conversion and its applications are produced. Methodology of laboratory experiments and rezults are described. Based on laboratory researches the technological process was choosen. Main equipment, the technological scheme, which carry out active components from supercritical CO2 extract of Cannabis Sativa are calculated. The worplace safety, environmental protection and economical calculations, which prove the efficiency of technology, are made
