IMPACT OF SO₂ EMISSION LIMITS ON PETROLEUM REFINERY OPERATIONS II: MINIMIZING EMISSIONS

AMIT DUTTA
A. K. DIKSHIT
S. RAY
M. BANDYOPADHYAY

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DOI: 10.2190/8KPC-JTAG-TMJG-C89X

Abstract

The first part of this article presented a general-purpose linear programming model and applied it to an existing petroleum refinery in India to evaluate the impact of imposed maximum SO₂ emission limits on operations and profitability. The present study presents two-step solution methodology designed to minimize SO₂ emission rates while preserving refinery profit. The proposed two-step procedure identifies an alternate solution of the LP model leading to an operating plan with maximized profit and minimized SO₂ emission rates. The study also shows that the alternative of increasing low-sulfur crude processing for lowering the total SO₂ emission rate may be effective only up to a certain proportion of the low-sulfur crude.

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