Conocophillips Company

Priya Rangarajan

Joe D Allison

Rafael Luis Espinoza

Doug S Jack

Keith Henry Lawson

Oluwaseyi A Odueyungbo

Steven R McDonald

Sriram Ramani

Gary E Welch

Kenneth M York

Troy L Amundson

The invention relates to methods for improving the octane number of a synthetic naphtha stream and optionally for producing olefins and/or solvents. In one embodiment, the method comprises aromatizing at least a portion of a synthetic naphtha stream to produce an aromatized hydrocarbon stream; and isomerizing at least a portion of the aromatized hydrocarbon stream to produce an isomerized aromatized hydrocarbon stream having a higher octane rating than the synthetic naphtha stream. Alternatively, the method comprises providing at least three synthetic naphtha cuts comprising a C-Cstream; a C-Cstream and a C-Cstream; aromatizing some of the C-Cstream to form an aromatized hydrocarbon stream with a higher octane number; steam cracking some of the C-Cstream and optionally the C-Cstream to form olefins; and selling some portions of C-Cstream as solvents. In preferred embodiments, the synthetic naphtha is derived from Fischer-Tropsch synthesis.

Octane improvement of a hydrocarbon stream

The present invention includes a process for producing carbon filaments and synthesis gas from a mixture of alkanes, preferably natural gas, comprising converting a first portion of the alkanes, preferably Chydrocarbons, directly to carbon filaments and converting a second portion of the alkanes, preferably methane, to syngas. The natural gas may be separated into a first feed stream comprising ethane, propane, and butane and a second feed stream comprising methane. The first feed stream is fed to a carbon filament CF reactor to produce carbon filaments and hydrogen. The second feed stream is fed to a syngas production reactor to produce syngas. Alternatively, the natural gas is fed to at least one carbon filament reactor that is maintained at an effective temperature to convert Chydrocarbons in the natural gas to carbon filaments and hydrogen, thereby filtering methane from the natural gas.

Process for converting alkanes to carbon filaments

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Ponca City, OK, United States of America

Priya Rangarajan