Iranian Research Organization for Science and Technology Advances in Environmental Technology 2476-6674 2 1 2016 12 01 A technical and economic assessment of fuel oil hydrotreating technology for steam power plant SO2 and NOx emissions control 45 54 362 10.22104/aet.2016.362 EN Peiman Pourmoghaddam Energy and Environment Research Center of Niroo Research Institute, Tehran, Iran Susan Davari Energy and Environment Research Center of Niroo Research Institute, Tehran, Iran Zahra Moghaddam Energy and Environment Research Center of Niroo Research Institute, Tehran, Iran Journal Article 2016 06 25 This work presents a simulation approach to the design and economic evaluation of fuel oil hydrotreating processes for the control of SO₂ and NOx emission in an Iranian steam power plant. The percent of fuel oil desulphurization was estimated from the SO₂ emissions standards for power plants. Based on two different scenarios according to (I) European and (II) Iranian standards, the design and simulation of hydrodesulphurization reactors, separation, heat recovery, and amine gas sweetening sections were performed and an economic assessment of the plant was investigated for each scenario. The results indicated the following: the cost price of each barrel of low sulfur fuel oil produced in such plants was estimated at  4.24 US$ for scenario (I) and 3.17 US$ for scenario (II); the levelized cost of desulfurization in power production was estimated at 0.618 c/kWh for (I) and 0.463 c/kWh for (II); and the social cost savings of replacing every barrel of low sulfur fuel oil instead of one barrel of high sulfur fuel oil were estimated at 26.7 US$ for (I) and 13.6 US$ (II). https://aet.irost.ir/article_362_71035d198da60973aa786255fb8d2ad0.pdf