Baywood Publishing Company
0047-2433
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Journal of Environmental Systems
BWES
300323
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29
3
3
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000029000320030101
Number 3/2002-2003
NVAE5F0A006Q
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10.2190/V5TP-H0AW-DPLD-R665
V5TPH0AWDPLDR665
207
IMPACT OF SO<SUB>2</SUB> EMISSION LIMITS ON PETROLEUM REFINERY OPERATIONS III: UNCERTAINTIES
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20040521
V5TPH0AWDPLDR665.pdf
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3
AMIT
DUTTA
A. K.
DIKSHIT
S.
RAY
M.
BANDYOPADHYAY
Bengal Engineering College, Howrah, India
Centre for Environmental Science & Engineering, Indian Institute of Technology, Bombay, India
Indian Institute of Technology, Kharagpur, India
The previous two parts of this article developed the linear programming (LP) model, applied it to an existing refinery, and presented a methodology for minimizing SO<SUB>2</SUB> emissions. In this article, the issue of uncertainties in percent sulfur in different feed and blending streams, which lead to uncertainties in estimates of SO<SUB>2</SUB> emission and refinery profitability, is discussed. It is also based on the linear programming model of the same refinery discussed in first part of this study. A stochastic method is used to generate inputs to the LP model to simulate the randomness of real-life operations. The results show that for the typical refinery considered, the SO<SUB>2</SUB> emission estimate has a standard deviation of 8.4 kg/hr at the mean SO<SUB>2</SUB> emission rate of 520 kg/hr. The refinery profit for the same refinery shows a standard deviation of 3.1 million Rs/month on a mean value of 283.7 million Rs/month.
A. Dutta, A. K. Dikshit, S. Ray, and M. Bandyopadhyay, Impact of SO Emission Limits on Petroleum Refinery Operations I: A Linear Programming Model, Journal of Environmental Systems, 29:1, pp. 15-38, 2002-2003.
A. Dutta, A. K. Sikshit, S. Ray, and M. Bandyopadhyay, Impact of SO Emission Limits on Petroleum Refinery Operations II: Minimizing Emissions, Journal of Environmental Systems, 29:2, pp. 175-190, 2002-2003.
ASTM (American Society for Testing and Materials), Test Method D1552-00 Standard Test Method for Sulfur in Petroleum Products (High-Temperature Method), http://www.astm.org., 2001.
Math Works Inc., MATLAB Statistical Tool Box, Math Works Inc., 1994.