C5/C6 isomerization is to make C5/C6 isoparaffin by isomerize normal-alkane through catalyst action.
C5/C6 isoparaffin are gasoline concoction of high octane number, aromatic free, no olefins and clean. With the introduction of the national concept of clean gasoline, the proportion of C5/C6 isomeric alkane in gasoline is increasing.
1, Adaptable raw material
C5/C6 components of condensate oil, naphtha, reforming stripping oil, aromatic raffinate oil and coal base naphtha.
2、Physicochemical properties of catalysts
Item | Medium temperature C5/6 isomerism catalyst | Solid super acid C5/6 isomerism catalyst | Low temperature C5/6 isomerism catalyst |
Appearance | bar-type | bar-type | bar-type |
Carrier | molecular sieve | metallic oxide | aluminium oxide |
Density, g/cm3 | 0.55-0.65 | 0.8-1.5 | 0.55-0.65 |
Strength，N/cm | >80 | >40 | >80 |
Active component | Pd or Pt | Pt | Pt |
3、Process conditions
Item | Medium temperature C5/6 isomerism | Solid super acid C5/6 isomerism | Low temperature C5/6 isomerism |
Temperature ℃ | 240-300 | 150-220 | 110-160 |
Pressure ，MPa | 2.0 | 2.0-3.0 | 2.0-3.0 |
Space velocity，h-1 | 1.0-1.2 | 1.0-1.2 | 1.0-1.2 |
H₂/oil ，v：v | ≮200 | ≮200 | ≮200 |
4、 T-HIC Technical Process Introduction
C5/6 isomerism process can be divided to: OT One pass process、DIP Deisopentane process、DIH Deisohexane process and DIPDIH process。
5 、Process characteristics
T-HIC technology have process characteristics such as: product liquid yield high, octane number high, Variety of catalysts, Full range of processes, different catalysts and processes can be customized according to customer needs.