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Acetylene plant, Petrochemical Corporation of Singapore (PCS) in Pulau Ayer Merbau, Singapore

Oxygen Enrichment in FCC Units The basic petroleum making process.

Fluid catalytic cracking (FCC) converts primarily vacuum gas oil from the crude distillation unit into gasoline blending stocks and fuel oils.

FCC breaks down heavier and more complex hydrocarbons into lighter ones. Feed is primarily vacuum gas oil, often mixed with refinery residues.

The main products are:  

  • Gas fraction (mainly C3/C4)
  • Liquid fraction
  • Coke (solid formation on the catalyst).

 

Oxygen enrichment in the regeneration allows the refinery operator to: 

  • increase the FCC capacity
  • get higher flexibility in the choice of feeds
  • use heavier feeds
  • raise the conversion and the petroleum yield
  • reduce by-products

 


Click to see a larger version of the image

 

Below you can see test plant results:

Click to see a larger version of the image

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