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Desulfurization of Petroleum Coke

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  • Petroleum coke Also called as  Pet coke or petcoke
  • Petroleum coke is a carbonaceous solid derived from oil refinery Coker units or other cracking processes
  • Petroleum coke has been burned at Kraft pulp mills to partially substitute for
    natural gas and fuel oil .
  • Desulfurization and devolatilization of petroleum coke by the use of short residence time hydrogenation technology.
  • Needle coke is a highly crystalline petroleum coke used in the production of electrodes for the steel and Aluminium industries and is particularly valuable because the electrodes must be replaced regularly.
  • Desulfurization is one of the process for crude oils and heavy oils .
  • The Process does not require high pressure or high temperatures that are required to reduce sulfur.
  • Desulfurization Process can handle heavy crude oils and residuals.
  • Desulfurization Process has been developed into a new sulphur-removal system it  saves money and reduces pollution.
  • Desulfurization Process  results in a very large reduction and its equipment cost required to implement its sulfur removal system versus $500 and $600 million.
  • High sulphur content in petroleum products is a very significant problem  and it creates corrosive combustion by-products and releases sulfur oxides into the atmosphere.
  • When the sulfur fuel burned it will create acid rain in atmosphere
  • The equipment costs are approximately 1/10 of the $50-100 million .
  • The sulfur present in many different combinations at petroleum coke and it will be removed through desulfurization.
  • The sulfur compounds present in the coke may be of organic or inorganic nature .
  • Sulfur compounds like  thiols, sulfides, thiophenes, benzothiophenes, dibenzothiophenes, pyritic, sulfates are presented in  petroleum coke.
  • The sulfur in the petroleum coke is present in the form of thiophene benzothiophenes and dibenzothiophenes.

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