Light gasoline

Gas Light gasoline Heavy gasoline Kerosene Gasoil Atmos, re d. 

As a complementary process to reforming, isomerization converts normal paraffins to iso-paraffins, either to prepare streams for other conversions nCi —> /C4 destined for alkylation or to increase the motor and research octane numbers of iight components in the gasoiine pooi, i.e., the C5 or Cs-Ce fractions from primary distillation of the crude, or light gasoline from conversion processes, having low octane numbers. 

Product properties Light gasoline Heavy gasoline Diesel oil Residue... 

Light naphthas 80-18QT 27-82 C Light gasoline Gasoline blending or isomerization unit... 

Figure 2-77 shows how the weight distributions of the different molecular types vary during the fractional distillation of a naphthenic crude oil. Saturated aliphatic hydrocarbons (i.e., paraffins and naphthenes) are the predominant constituents in the light gasoline fraction. As the boiling point is raised, the paraffin content decreases, and the NSO content increases continuously. About 75 wt% of tbe residuum is composed of aromatics and NSO compounds. 

Ward, Gooding, and Eccleston (69) in 1947, relating to the compounds in the light gasoline fraction of Oklahoma petroleum... 

Overhead of the fractionator T-2 is partially condensed in E-1A (on crude) and E-IB (on cooling water). A gas product is withdrawn overhead of the reflux drum which operates at 15 psig. The light gasoline is pumped with J-5 to storage and as reflux. 

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