Applications of Process Integration

Hydrogen Pinch Studies

Increasing demand for hydrogen in the refinery and chemical plants has resulted in better hydrogen network synthesis. Hydrogen pinch is analogous to heat integration pinch, and is intended to offer structured analysis techniques and methodologies to optimize and to improve a hydrogen network. Typically, a refinery or chemical plant can be divided into hydrogen producing units (e.g. catalytic reformer hydrogen plant, ethylene plant) and hydrogen consuming units (hydrotreaters, hydrocrackers and isomerization). Some hydrogen consumers, however, also produce hydrogen because their purge streams usually contain a significant amount of hydrogen with an appropriate value. A hydrogen pinch study ...

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