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All Journal JURNAL PENDIDIKAN TAMBUSAI ALKIMIA : Jurnal Ilmu Kimia dan Terapan Jurnal Pengabdian kepada Masyarakat Indonesia (JPKMI)
Daniar, Rima
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Journal : ALKIMIA : Jurnal Ilmu Kimia dan Terapan

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Pemanfaatan Bagas sebagai Bahan Baku Pembuatan Bioetanol dengan Metode Pretreatment Alkali Daniar, Rima
ALKIMIA Vol 2 No 1 (2018): ALKIMIA
Publisher : SCIENCE AND TECHNOLOGY FACULTY OF UNIVERSITAS ISLAM NEGERI RADEN FATAH PALEMBANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (210.119 KB) | DOI: 10.19109/alkimia.v2i1.2254

Abstract

Indonesia being an agricultural country produces a large amount of cellulosic biomass such as sugarcane bagasse. This provides a low-cost feedstock for fermentative production of a wide range of fuels, economic, renewable and environmentally friendly. With utilization of renewable energy resource a crisis of energy could be solved. Sugarcane bagasse contains lignocellulose which can be broken down into glucose and produce ethanol by fermentation process. This study describes the pretreatment of sugarcane bagasse with different method of alkaline pretreatment. Sugarcane bagasse was pretreated with heating process (80oC) and without heating process (25oC) and different concentration of Alkaline (NaOH). This study also descibes the influence of fermentation time to refractive index, volume of bioethanol and % Ethanol. The alkaline pretreatment method was able to effectively increase enzymatic disgetibility of sugarcane bagasse cellulose. Based on the best result, the best condition for pretreatment to produce highest cellulose (50,71 %) was pretreatment with heating process and using NaOH 3 N. The highest refractive index was 1,3391 from 5 days fermentation. The highest volume of bioethanol was 16 ml from 7 days fermentation. The highest % etanol was 56 based on standard plot analysis method and 47,708 based on GC analysis method.
Effect of catalysts on the conversion of polystyrene plastic waste into fuel with the Catalytic Cracking Method Daniar, Rima; Kholidah, Nurul
ALKIMIA Vol 4 No 1 (2020): ALKIMIA
Publisher : SCIENCE AND TECHNOLOGY FACULTY OF UNIVERSITAS ISLAM NEGERI RADEN FATAH PALEMBANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (165.773 KB) | DOI: 10.19109/alkimia.v4i1.5469

Abstract

Polystyrene is useful product that widely used today. But when it becomes waste, Polystyrene can cause environmental problem such as air pollution, soil contamination, as well as economical resistence due to the increase of space and disposal costs. On the other hand Polystyrene can be converted into fuel. It is expected can be a solution of the problem. The aim of this research is to convert polystyrene plastic waste into useful fuel with catalytic cracking process. Zeolit and Al2O3 was used as catalyst in this research as musch as 8 % feed. Temperature set at 250 oC. At the optimum reaction condition (catalyst Al2O3 and the length of cracking time is 30 minutes) the liquid yield of catalytic cracking process was 29.40 %. Physical properties like density, spgr, oAPI gravity and calorific value of fuel samples is determined and compared to gasoline standard. The result showed that density, spgr, oAPI gravity and calorific value was close to the density, spgr, oAPI gravity and calorific value of gasoline standard.
Co-Authors Ami, Hidayati Fernandes, Yogi Eka Hafidza, Annisa Ulmi KHOLIDAH, NURUL Manggala, Agus Meiliana, Mutia Nugroho, M Febrian Nurfaritsya, Siti Aninda Renny Maulidda, Renny Rusnandi, Irawan Zurohaina, Zurohaina