Review Article
Polymeric Gas-Separation Membranes for Petroleum Refining
Table 5
Hydrogen composition in refinery off-gases [
101].
| Process | Hydrogen content (vol%) |
| Catalytic reforming | 40–85 | Thermal hydrodealkylation | 50–75 | Hydrocracking | 40–60 | Hydrotreating | 25–35 | Catalytic cracking | 10–30 |
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