scholarly journals Prosopis juliflora pods mash for biofuel energy production: Implication for managing invasive species through utilization

2018 ◽  
Vol 7 (3) ◽  
pp. 205-212
Author(s):  
Mebrahtu Haile ◽  
Hadgu Hishe ◽  
Desta Gebremedhin
Keyword(s):  
Invasive Species ◽  
Ethanol Production ◽  
Solid Waste ◽  
Acid Concentration ◽  
Solid Fuel ◽  
Energy Production ◽  
Prosopis Juliflora ◽  
Optimum Conditions ◽  
H2so4 Concentration ◽  
Fermentation Temperature

Fuels obtained from renewable resources have merited a lot of enthusiasm amid the previous decades mostly because of worries about fossil fuel depletion and climate change. The aim of this study was to investigate the potential of Prosopis juliflora pods mash for bio-ethanol production and its hydrolysis solid waste for solid fuel. Parameters such as acid concentration (0.5 - 3 molar), hydrolysis times (5-30 min), fermentation times (6-72h), fermentation temperature (25 OC - 40 OC) and pH (4-8) on bio-ethanol production using Saccharomyces cerevisiae yeast were evaluated. Results show that the content of sugar increases as the acid concentration (H2SO4) increased up to 1 molar and decreases beyond 1 molar.  A maximum sugar content of 96.13 %v/v was obtained at 1 molar of H2SO4 concentration. The optimum conditions for bio-ethanol production were found at 1 molar of H2SO4 concentration (4.2 %v/v), 48 h fermentation time (5.1%v/v), 20 min hydrolysis time (5.57 %v/v), 30 OC fermentation temperature (5.57 %v/v) and pH 5 (6.01 %v/v). Under these optimum conditions, the maximum yield of bio-ethanol (6.01%v/v) was obtained. Furthermore, the solid waste remaining after bio-ethanol production was evaluated for solid fuel application (18.22 MJ/kg). Hence, the results show that Prosopis juliflora pods mash has the potential to produce bio-ethanol. The preliminary analysis of solid waste after hydrolysis suggests the possibility to use it as a solid fuel, implying its potential for alleviating major disposal problems.Article History: Received March 24th 2018 ; Received in revised form September 15th 2018; Accepted October 1st 2018; Available onlineHow to Cite This Article: Haile, M., Hishe, H. and Gebremedhin, D. (2018) Prosopis juliflora Pods Mash for Biofuel Energy Production: Implication for Managing Invasive Species through Utilization. International Journal of Renewable Energy Development, 7(3), 205-212.https://doi.org/10.14710/ijred.7.3.205-212 

Chlorine-free Solid Fuel Production from Municipal Solid Waste by Hydrothermal Process

2011 ◽  
Vol 90 (12) ◽  
pp. 1177-1182 ◽  
Author(s):  
Bayu INDRAWAN ◽  
Pandji PRAWISUDHA ◽  
Kunio YOSHIKAWA
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Solid Fuel ◽  
Hydrothermal Process ◽  
Fuel Production

Research on Ethanol Production by Biological Fermentation of Potato Pulp

2013 ◽  
Vol 805-806 ◽  
pp. 281-285
Author(s):  
Zhong Xu
Keyword(s):  
Chemical Composition ◽  
Ethanol Production ◽  
Production Rate ◽  
Liquid Ratio ◽  
Fermentation Time ◽  
Potato Pulp ◽  
Fermentation Temperature ◽  
Ethanol Production Rate ◽  
Solid Liquid

Bioconversion of potato pulp to fuel ethanol, analysing the potato pulp chemical composition and determining the potato pulp in the role of microorganism produce ethanol under the best conditions is the major research. An analysis of the chemical composition of potato pulp showed that : the basic ingredients are Protein (9.72%), Starch (25.52%), Cellulose (17.90%). The effects of ethanol production rate of solid-liquid ratio, fermentation temperature, inoculumconcertration, fermentation time. The results showed that: the best conditions producting ethanol from potato pulp obtained by single factor experiments are: solid-liquid ratio: 1:15, fermentation temperature: 35°C, inoculumconcertration: 3mL, fermentation time: 20h. Under this occasion, the ethanol production rate was 0.183mL·g-1.

Preparation of Water-Soluble Carboxymethylated Lignin from Wheat Straw Alkali Lignin

2012 ◽  
Vol 550-553 ◽  
pp. 1293-1298 ◽  
Author(s):  
Lin Huo Gan ◽  
Ming Song Zhou ◽  
Xue Qing Qiu
Keyword(s):  
Wheat Straw ◽  
Acid Concentration ◽  
1H Nmr Spectroscopy ◽  
Water Soluble ◽  
Monochloroacetic Acid ◽  
Hydroxyl Group ◽  
Carboxyl Group ◽  
Optimum Conditions ◽  
Alkali Lignin ◽  
Carboxyl Group Content

Water-soluble carboxymethylated lignin (CML) was synthesized using wheat straw alkali lignin (WAL) in aqueous medium. The process of carboxymethylation was optimized with respect to the NaOH concentration, monochloroacetic acid concentration, reaction temperature and time. The optimized product has a yield of 80.47% and a carboxyl group content of 2.8231 mmol•g-1, respectively. The optimum conditions for carboxymethylation are NaOH concentration of 20.0% (wt%), monochloroacetic acid concentration of 37.5% (wt%), temperature of 70 °C and time of 90 min. The optimized CML was characterized by FTIR spectroscopy, 1H NMR spectroscopy and interfacial tension apparatus. The result shows that the substitution reaction of carboxymethylation occurs simultaneously in the phenolic hydroxyl group and aliphatic hydroxyl group in WAL. CML has the surface activity in water for industrial application as dispersant.

scholarly journals Kinetic Effects as the Balancing Factor on α-Cellulose Conversion into D-Glucose in Hydrolysis Process of Pt. Tanjung Enim Lestari Solid Waste Using Oscillated Flow

2007 ◽  
Vol 7 (1 & 2) ◽  
pp. 141
Author(s):  
Sri Haryati
Keyword(s):  
Solid Waste ◽  
Acid Concentration ◽  
Glucose Solution ◽  
Chemical Compounds ◽  
Pulp And Paper ◽  
Sugar Solution ◽  
Cellulose Conversion ◽  
Paper Manufacturing ◽  
Hydrolysis Process ◽  
Kinetic Effects

A solution to find the best alternative to minimize industry pollution is very necessary especially in pulp and paper manufacturing. One of the alternatives is using waste as feed that will be converted into chemical compound and fuel. Solid waste from pulp and paper manufacturing that contains lignocellulose which is a biomass has potency to be processed for chemical compounds, such as sugar solution (D-glucose), Furfural, and Acetone-Buthanol-Ethanol (ABE). The solid waste in this research is hydrolyzed generating D-glucose solution. The purpose of this research is to study the variables of α-cellulose conversion kinetics as the balancing factor between α-cellulose conversion and energy and mass consumptions. The value of energy and mass consumptions, along with temperature and acid concentration, can be minimized to get higher conversions. Two processes in this method are the preparation and the hydrolyses of α-cellulose by using delignified feed. The hydrolyses process occurs in the Oscillated Reactor Column. The highest conversion was about 50-55% at 10% of sulfic acid concentration.

Prosopis juliflora—A Potential Problematic Weed for Lignocellulosic Ethanol Production

2017 ◽  
pp. 191-206 ◽  
Author(s):  
Vijayakumar Palled ◽  
M. Anantachar ◽  
M. Veerangouda ◽  
K. V. Prakash ◽  
C. T. Ramachandra ◽  
...  
Keyword(s):  
Ethanol Production ◽  
Prosopis Juliflora ◽  
Lignocellulosic Ethanol

scholarly journals Study on utilization of Indonesian non-recycled municipal solid waste as renewable solid fuel

2018 ◽  
Author(s):  
Budi Triyono ◽  
Pandji Prawisudha ◽  
Ari Darmawan Pasek ◽  
Mardiyati
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Solid Fuel
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