Process for separating cyclic paraffins
AssigneeUop LLC
InventorsRam Ganesh Rokkam, Amit Jain, Ashish Mathur, Nirlipt Mahapatra, Prasenjit Basu Sarkar, Sourabh Maithil
Life of this patent
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Abstract
A feed stream of cyclic paraffins may be separated to obtain an overhead of methylcyclopentane or cyclohexane and a bottoms stream cyclohexane or methylcyclohexane. The overhead stream may be subjected to separation of normal paraffins from non-normal paraffins with the former being isomerized or the entire overhead stream may be isomerized. In a further embodiment, the bottoms stream may be subjected to steam cracking. In an additional embodiment, the feed stream of cyclic paraffins may be formerly subjected to aromatic saturation.
Claims16
A process for separating an isomerate stream comprising:
- separating a feed stream to provide a separator overhead stream rich in methyl cyclopentane or cyclohexane and a separator bottom stream rich in cyclohexane or methylcyclohexane;
- taking an isomerization feed stream from said separator overhead stream;
- isomerizing said isomerization feed stream to provide said isomerate stream;
- separating said isomerate stream into an isomerate overhead stream and an isomerate bottom stream;
- and
- steam cracking said isomerate overhead stream.
A process for separating a normal paraffins stream from a non-normal paraffins stream comprising:
- separating a feed stream to provide a separator overhead stream rich in methyl cyclopentane or cyclohexane and a separator bottom stream rich in cyclohexane or methylcyclohexane;
- separating said separator overhead stream into a normal paraffins stream and a non-normal paraffins stream;
- and
- splitting said non-normal paraffins stream to provide a low isomerization feed stream rich in C4 hydrocarbons and a high isomerization feed stream rich in C5+ hydrocarbons and isomerizing said low isomerization feed stream and said high isomerization feed stream separately.
A process for producing an isomerate stream comprising:
- saturating aromatics in a steam cracked stream to provide a feed stream;
- separating said feed stream to provide a separator overhead stream rich in methyl cyclopentane or cyclohexane and a separator bottom stream rich in cyclohexane or methylcyclohexane;
- taking an isomerization feed stream from said separator overhead stream;
- and
- isomerizing said isomerization feed stream to provide an isomerate stream.
Dependencies are inferred from the claim text.