Optimization and industrial application of recycled hydrogen desulfurization process in a hydrogenation unit

ABSTRACT

A novel gas-liquid cyclone operated under high-pressure conditions (13.7 MPa) was developed. For optimizing recycled hydrogen desulfurization system, an array of this type of cyclone separators was set in the top of the high-pressure separator and desulfurizing tower. The industrial application results illustrated that the average separation efficiency of the cyclone deliquid device was 85.4%. By adopting the optimized system, a large amount of investment cost was saved and a series of significant improvements were achieved.

KEYWORDS:

• Cyclone separator
• desulfurization
• hydrogen
• hydrogenation unit
• process optimization

Funding

The authors gratefully acknowledge the support of National Key Research and Development Program of China (2016YFC0204500), the National Key Basic Research Program of China (2014CB748500), and the China National Funds for Distinguished Young Scientists (51125032).