Technical Transformation and Low Load Operation Analysis of Hydrogen Production Plant
The problems of hydrogenation catalyst reduction and air cooling inlet overtemperature at 41%load of 5×104 m3/h hydrogen production unit in a petrochemical company are introduced.Through the technical transformation of hydrogen distribution system and medium-gas heat exchange system,the results show that the total feed amount at the conversion inlet at 25%load is higher than that at 41%load.It not only avoids the medium bias in the reformer tube,the reduction of hydrogenation catalyst and the overtemperature of the medium-gas air cooling inlet at low load,but also uses the excess low-temperature heat of the medium-gas system to produce 235 t/h hot water.Annual recovery of heat to create economic benefits of 15.28 million yuan,while reducing the total carbon emissions of 28 597 t.The operating elasticity of hydrogen production unit is increased from 50%～110%to 25%～110%,which is more suitable for the balance of hydrogen system in the whole plant to avoid hydrogen excess.
hydrogen production technologytechnological transformationreformerlow loadrecovery
万方数据
维普
