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Title: Processing light naphtha. the last virgin

Conference · · 45th API Refining Dep. Midyear Meet. Prepr.; (United States)
OSTI ID:6227593

Methods for improving the octane number of light straight-run naphtha, necessitated by the lead phase-down, involve either the conversion of straight-chain molecules to their higher octane branched isomers or their removal from the stream. Isomerization can be achieved by Shell Research B.V.'s Hysomer process which is a once-through process that can be adapted to an existing idle hydrotreater, catalytic reformer, or other hydrotreating unit, and which yields a 79-82 clear research octane at a C/sub 5/+ liquid yield of 97-98%, dependent on feedstock type; or by Union Carbide Corp.'s TIP (Total Isomerization Process), which yields an 88-92 clear Research octane at a C/sub 5/+ liquid yield of 95-97%. Normal paraffins can be removed by Union Carbide Corp.'s IsoSiv process, which can increase the octane of the C/sub 5/-C/sub 8/ stream by 15 numbers and yields normal paraffins for petrochemical feedstocks. The technology, performance, operating experience, and costs of these processes are discussed in detail.

Research Organization:
Union Carbide Corp.
OSTI ID:
6227593
Report Number(s):
CONF-8005115-
Journal Information:
45th API Refining Dep. Midyear Meet. Prepr.; (United States), Vol. 9-80; Conference: 45. midyear refining meeting, Houston, TX, USA, 15 May 1980
Country of Publication:
United States
Language:
English