8 publications
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Production and Characterization of Essential oil using the Solvent Extraction Method from Brassica nigra seedsBy Getachew Chane, Belete Tessema Asfaw, Tihitina Abebe
Abstract: The purpose of this study is the Production, Optimization and Characterization of oil from Brassica nigra seeds using the Solvent Extraction Method. The result shows no difference from the seed oil extract from the mustard plants which grows in other parts of the world. This is to create awareness to utilize the Brassica nigra seed locally grown, as a potential source of edible oil for health benefit, such as additives …
Published in Journal of Petroleum Engineering & Technology · Vol. 10, Issue 1, 2020 · pp. 5–20 Read article →
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Review on: Heterogeneous Solid Base Catalyst Production from Waste Animal Bone as Transesterification of Jatropha OilBy Kaleab Bizuneh Gebeyehu, Belete Tessema Asfaw, Tihitna Abebe
Abstract: Biodiesel is produce mainly by transesterification, reacting vegetable oils or animal fats with monohydric alcohol in presence of a catalyst. The transesterification reaction is affected by various parameters. One of this parameter is catalyst type. Generally, catalysts used in transesterification reaction can be divided into three categories: homogenous, heterogeneous and enzymes. Heterogeneous catalysts offer numerous advantages over homogeneous catalysts as it can easily be separated from reaction mixture and can …
Published in Journal of Catalyst & Catalysis · Vol. 7, Issue 1, 2020 · pp. 13–23 Read article →
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Recovery of Liquid Hydrocarbon Fuels from Polypropylene Waste Plastics via Catalytic PyrolysisBy Tihitna Abebe, Belete Tessema Asfaw
Abstract: Process of pyrolysis is a thermo-chemical method conducted at high temperatures and usually in presence of catalysts. Dissimilar type of natural and synthetic catalysts are used for alteration of organic wastes into cherished fuels. The aim of this work is conversion of waste production of liquid fuel using catalyst that produced from rice husk ash. Waste plastic was pyrolyzed at temperature range 430-470oC and obtained products were liquid fuel, gas …
Published in Journal of Catalyst & Catalysis · Vol. 7, Issue 1, 2020 · pp. 33–48 Read article →
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Review on: Extraction of essential oil (Gin Flavor) from Juniper Berries (Juniperus Communis)By Meroda Tesfaye Gari, Shimelis Admassu, Belete Tessema Asfaw, Tihitina Abebe, M. Jayakumar
Abstract: The objective of this review paper was focused on extraction of the essential oil from the berries of juniper to Gin flavor (Juniperus Communis). Beverages of alcohols are divided into three groups: malt, distilled and fermented wines liquors. Gin is common distilled liquors. The source of alcoholic liquors supply in Ethiopia is both local production and import, although there are a number of small to medium factories that produce alcoholic …
Published in Emerging Trends in Chemical Engineering · Vol. 7, Issue 1, 2020 · pp. 19–28 Read article →
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Review on: Case study for the Construction of Particleboard Using Sugarcane BagasseBy Belete Tessema Asfaw, Hailegebreil Gemechu Shebu, Meroda Tesfaye Gari
Abstract: The major objective of this review paper was construction of particleboard using sugarcane bagasse. Particleboard is a wood-based panel product manufactured under pressure and temperature from the particles of wood or other any lignocellulose fibrous materials and a binder. It is used widely in the manufacture of furniture, floor underlayment and interior decoration. A primary lignocellulose material used in the particleboard industry is woods, but non-woods plant fibers and agro-based …
Published in Journal of Catalyst & Catalysis · Vol. 6, Issue 3, 2019 · pp. 14–24 Read article →
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Review on: Plastic Waste Uses for the Production of Liquid OilBy Meroda Tesfaye Gari, Belete Tessema Asfaw
Abstract: Solid waste is a substantial problem, predominantly in emerging countries that lack adequate substructure and operational land mass to process it in a corrected manner. Several emerging nations are facing a combination of issues that avert proper management of solid waste. This paper reviews the management of municipal solid waste in Ethiopia, using the Addis Ababa City as a case study. The consumption of plastic materials is vast and has …
Published in Journal of Petroleum Engineering & Technology · Vol. 9, Issue 3, 2019 · pp. 28–33 Read article →
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Review on: Elimination of Petroleum Hydrocarbons using Bacteriological CarpetsBy Belete Tessema Asfaw, Meroda Tesfaye Gari, Hailegebreil Gemechu Shebu
Abstract: In this review study, biodegradability of petrol hydrocarbon was premeditated on the petroleum sludge from the chemical industry using bacterial carpet. Bacterial carpet is consisting of biological fiber like jute fiber, coconut fiber. Accidentally, releasing of petroleum products are actual concern in the surroundings. Additionally, one of the main ecological difficulties at the present day is hydrocarbon pollution, which resulting from the activities associated with the chemical and allied industries. …
Published in Journal of Petroleum Engineering & Technology · Vol. 9, Issue 3, 2019 · pp. 21–27 Read article →
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Production of liquid fuel from waste plastic using batch catalytic pyrolysis processBy Belete Tessema Asfaw, Meroda Tesfaye Gari
Abstract: Waste polystyrene from households and retailing shops are recognized to be the major sources of environmental problem. On the other hand, it represents a source of energy and valuable chemical products. Pyrolysis as a technique of chemical recycling of waste plastic is as an environmentally and economically acceptable option for converting waste plastics into useful resources. In this study, the operating conditions studied were; temperature was varied from 430 to …
Published in Journal of Catalyst & Catalysis · Vol. 6, Issue 2, 2019 · pp. 34–43 Read article →