Integrated liquid cracking process with reverse isomerization of iso-alkane to normal-alkane for enhanced olefin yield
AssigneeSabic Global Technologies B.V.
InventorsZeeshan NAWAZ, Ahmed Suliman AL-ZENAIDI, Pradyut SAMANTA, Thamire Srinavasa Rao
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Abstract
Integrated systems and methods of processing natural gas liquid (rich in C5 content) to produce one or more light olefins are disclosed. The systems include a reverse isomerization reactor for reverse isomerizing iso-alkane to normal-alkane. The disclosed integrated system includes the reverse isomerization of iso-pentane to normal-pentane before cracking to form one or more light olefins.
Claims20
A method of processing natural gas liquid to produce one or more light olefins, the method comprising:
- converting, by reverse isomerization, at least some iso-alkane content of the natural gas liquid to normal-alkane and thereby form a cracking unit feed having a higher concentration of normal-alkane than the natural gas liquid;
- and
- processing the cracking unit feed to produce one or more light olefins.
A method of processing natural gas liquid comprising iso-pentane and normal-pentane, the method comprising:
- hydrotreating the natural gas liquid to produce a first stream;
- separating the first stream in a first separator to produce a second stream comprising primarily iso-pentane;
- isomerizing iso-pentane of the second stream in the presence of an active metal based catalyst to form normal-pentane and thereby produce a third stream comprising a higher concentration of normal-pentane than the second stream;
- removing methane and hydrogen from the third stream to form a fourth stream comprising normal-pentane and unconverted iso-pentane.
Dependencies are inferred from the claim text.