Abstract
The thermochemical IS process for hydrogen production involves the use of highly corrosive sulfuric and hydriodic acids at high temperature and pressure, and the development of corrosion-resistant materials for main components is therefore crucial to process development. This paper concerns the development of a sulfuric acid transfer pump, an important component in transferring high-temperature concentrated sulfuric acid in the sulfu-ric acid decomposition step of the IS process. A reciprocating plunger pump made of SiC ceramics and common metal alloys was designed to meet the required corrosion resistance, thermal resistance and compressive strength for the transfer of high-temperature concentrated sulfuric acid. The pump was test-fabricated, and its performance in an IS test plant with a hydrogen production capacity of 30 m3/h was verified in terms of the pressure resistance and the transfer performance.
| Original language | English |
|---|---|
| Pages (from-to) | 441-446 |
| Number of pages | 6 |
| Journal | Kagaku Kogaku Ronbunshu |
| Volume | 37 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2011 |
Keywords
- Hydrogen production
- IS process
- Pump
- Sulfuric acid
- Thermochemical method
