Utilization of Mash Treatment Unit for Sterilization and Clarification of Final Molasses in Ethanol Plant
International Journal of Photochemistry and Photobiology
Volume 2, Issue 2, December 2018, Pages: 49-57
Received: Jul. 15, 2018; Accepted: Oct. 11, 2018; Published: Nov. 9, 2018
Views 615      Downloads 58
Authors
Kamal Suleiman Hassan Fadl, Department of Food Engineering & Technology, Faculty of Engineering and Technology, University of Gezira, Wad Medani, Sudan
Omer El Sheikh Attiat Alla Abbashar, Department of Quality Control & Quality Assurance, Kenana Sugar Company, Kenana, Sudan
Abubakr Musa, Sugar Institute, University of Gezira, Wad Madani, Sudan; School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
Article Tools
Follow on us
Abstract
The study aimed to determine the effect of sterilization treatment of molasses in ethanol industry in terms of increased production, reduced operating costs and maintenance, through introducing of a specialized unit to enhance the purification and sterilization of molasses, as well as, taking the advantage of high vinasses temperature (a by-product in the ethanol industry) as a source of heat instead of steam, and lowered temperatures of beer as a source for partial cooling. This study depended on scientific experimentation in lab conditions to measure the value of (brix, pH and temperature) as the main primary data collection. The verification of the results was done through the work of two models for the production of ethanol using treated molasses as first model and non treated molasses as second model. Thereafter, the percentage of ethanol production was determined as well as the number of yeasts in both models. Moreover, the difference between the two models was spotted as well. In addition to that, the two models which have been implemented by controlling the values of brix, pH, and temperature and fermentation period in order to determine the optimum and best values that would give higher and better productivity of ethanol and a greater number of yeast. Results showed that the optimum values were found at 21 brix, pH 5, at 30°C temperature, which gave the highest ethanol production, which was 8.1%, 6.7% and 6.4% respectively, when using molasses without treatment and 8.98%, 7.7%, and 7.3% respectively when using treated molasses with a period of fermentation 48 hours in all cases. Also on the other hand and regarding the yeast growth the results showed that the optimum values were found at 18-19 brix, pH 5, at 30°C temperature, which gave the highest growth of yeast cell count, where it was 13.86×107, 9.96×107 and 9.16×107 respectively, when using molasses without treatment and 14.91×107, 10.09×107 and 9.21×107 when using treated molasses with a period of fermentation 24 hours in all cases. It is recommended to establish a specific treatment unit for the molasses so as to achieve greater productivity of ethanol and to adjust the brix value at 21%, temperature at 30°C, pH at 5 and the period of fermentation should be 48 hours.
Keywords
Molasses, Sterilization, Production of Ethanol
To cite this article
Kamal Suleiman Hassan Fadl, Omer El Sheikh Attiat Alla Abbashar, Abubakr Musa, Utilization of Mash Treatment Unit for Sterilization and Clarification of Final Molasses in Ethanol Plant, International Journal of Photochemistry and Photobiology. Vol. 2, No. 2, 2018, pp. 49-57. doi: 10.11648/j.ijpp.20180202.12
Copyright
Copyright © 2018 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
References
[1]
Badger, P. C., 2002. Ethanol from cellulose: A general review. P 17-21 In: J. Janick and A. Whipkey (eds) Trenin new crop and new uses.
[2]
Baker B. P., 1986. United Molasses Company Sugar Quay-London
[3]
Berg, C., 1999. World ethanol production and trade to 2000 and beyond. Indian Sugar, 49(7), pp.459-472.
[4]
Bothast, R. J. and Schlicher, M. A., 2005. Biotechnological processes for conversion of corn into ethanol. Applied microbiology and biotechnology, 67(1), pp.19-25.
[5]
Dediniindustrias de base, 2010.ethanol quality control manual, Brazil.
[6]
Ghosh, P., Ghose, T. K., 2003. Bioethanol in India: recent past and emerging future. Advances in Biochemical Engineering/Biotechnology 85: 1–27.
[7]
Goyes, A., Bolan os, G., 2005. Un estudio preliminar sobre el tratamiento de vinazas en agua supercrı´tica. In: XXIII Congreso Colombiano de Ingenierı ´a Quı´mica, Manizales, Colombia.
[8]
Ibeto, C. N. and Okpara, C. G., 2010. Nigerias potentials of renewable energy sources for water desalination with emphasis on biomass. J. Sci. Technol. Res, 9, pp.66-73.
[9]
Mohamed, N. A., 2000. Screening for Osmotolerant Yeast for Ethanol Production. M. Sc. Agric. University of Khartoum.
[10]
Naser, A., 2014. Isolation and characterization of yeast for bioethanol production, using sugarcane molasses (Doctoral dissertation, BRAC University).
[11]
Paturau, J. M., 1982. By product of the cane sugar industry, an introduction to their industrial utilization, third completely revised addition.
[12]
Pinto-Mariano, A., Crivelaro, S. H. R., Angelis, D. F. and Bonoto, D. M., 2006. Use of vinasse, an ethanol distillery waste, as an amendment to bioremediation of diesel oil contaminated soils. XXII INTERAMERICAN CONFEDERATION OF CHEMICAL ENGINEERING.
[13]
Rao, R. S., Prakasham, R. S., Prasad, K. K., Rajesham, S. S. P. N., Sarma, P. N. and Rao, L. V., 2004. Xylitol production by Candida sp.: parameter optimization using Taguchi approach. Process Biochemistry, 39(8), pp.951-956.
[14]
Ravano A. B.1985. Laboratory manual for South African sugar factories, S. A. Sugar Technologists Asspociation published by South African sugar technologists Association ISBN 0 620 02940 4 3rd edition. Printed and bound by InterpakNatal, Pietermaritaburg.
[15]
Wilkie, A. C., Riedesel, K. J. and Owens, J. M., 2000. Stillage characterization and anaerobic treatment of ethanol stillage from conventional and cellulosic feedstocks. Biomass and Bioenergy, 19(2), pp.63-102.
ADDRESS
Science Publishing Group
1 Rockefeller Plaza,
10th and 11th Floors,
New York, NY 10020
U.S.A.
Tel: (001)347-983-5186