Desulphurization of Tabas Coals Coke

Subject Areas :

Moslem  Soltanian ¹ (Ph.D Student of Engineering and Management of Water Resources, Department of Water Sciences and Engineering, Shar-e-Qods Branch, Islamic Azad University, Shar-e-Qods, Iran)
Hossein  Hassanpour Darvishi ² (Associate Professor, Department of civil Engineering-Engineering and Management of Water Resources, Shar-e-Qods Branch, Islamic Azad University, Tehran, Iran)
Seyed Habib  Musavi Jahromi ³ (Professor, Department of Water Science and Engineering, Faculty of Engineering, Shahr-e-Quds Branch, Islamic Azad University, Shahr-e-Quds, Iran)
Mohammad  Nasri ⁴ (Professor, Department of Agriculture, Faculty of Agriculture, Varamin Branch, Islamic Azad University, Varamin, Iran.)
Seyed Mohammad  Hashemi ⁵ (Department of Geology, Mashhad Branch, Islamic Azad University, Mashhad, Iran)

Received: 2021-08-28 Accepted : 2021-08-28 Published : 2020-11-21

Keywords: ash, Flotation, Coal, Sulfur. Pollutant, Taba,

Abstract :

Sulfur is an organic and mineral in coal and is one of the most disturbing elements in the steel industry.The high percentage of sulfur in Tabas coal is considered as a polluting and harmful element. Sulfur, in addition to reducing the production efficiency of coking plants, causes environmental pollution. The study of reducing the amount of sulfur by physical methods such as flotation is one of the goals of this paper.Investigation of coal samples in flotation method and effective factors in increasing the efficiency of sulfur separation are investigated .Factors such as ash content, the effect of collectors and Foam maker, mechanicalproperties and floating cells conditions are considered.The amount of collector, the amount of foaming and pulp percentage and the remaining time are the parameters that are effective in reducing the sulfur content of the flotation method.By increasing the amount of Gasoil collector, the amount of recycling and the amount of pyrite sulfur decreases with a slow process. Increasing or reducing excessive engine speed reduces the rate of desulfurization. Increasing pulp percentages on reducing sulfur and reducing ash increases recycling rates.