A cost effective way to deal with several parameters of reformulated fuels -- Light cracked naphtha deep etherification

Conference · Sun Dec 01 04:00:00 EST 1996

OSTI ID:403525

Trotta, R; Pescarollo, E ^[1]; Hyland, M J ^[2]

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1. Snamprogetti SPA, Milan (Italy)
2. Snamprogetti USA, Inc., Houston, TX (United States)

The Clean Air Act Amendment (CAAA) of 1990 set in motion changes in the Refining Industry, specifically the Complex Model which comes into force after 1998 as well as possible changes beyond that which will affect the Refiner. These requirements result in drastic changes in refinery operations and economics: (1) reduced reformer severity to limit aromatics production, this results in reduced production and possible shortage of hydrogen and octane; (2) reduction in gasoline pool RVP and the need to reduce the light olefins content; (3) the need for oxygenates in the gasoline pool. This paper discusses an effective method of dealing with all these changes by Deep Etherification of the entire Light Cracked Naphtha (LCN) stream from the Refinery`s Fluid Catalytic Cracker. This approach solves 5 or 6 problems at once: the light olefins which must be removed are converted into needed Oxygenates; as the Oxygenates are of lower RVP than the Olefins they replace, more of the remaining LCN can be blended into the gasoline pool; Octane is improved; the Dilution effect (more gasoline volume from the oxygenates and from the extra LCN now in the pool) helps meet the Aromatics limits without as great a reduction in reformer severity; aromatics constraints are also lessened since under the Complex Model the now lower RVP gasoline can permit a higher amount of Aromatics and still meet the requirements of the Model. The approach described in this paper called SP Deep Etherification Technology (DET) greatly helps the Refiner`s economics and ability to meet the upcoming RFG formulation demands.

• OSTI ID: 403525
• Report Number(s): CONF-960356--
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
10 SYNTHETIC FUELS
CHEMICAL COMPOSITION
CLEAN AIR ACTS
ETHERS
FLOWSHEETS
FUEL ADDITIVES
MODIFICATIONS
NAPHTHA
PETROLEUM REFINERIES
PRODUCTION
REFINING
SPECIFICATIONS
VAPOR PRESSURE