Start-up conditions for ammonia synthesis

There are many conditions; it depends on the factory’s annual targets... there are no fixed figures

1. General principles for commissioning: General principles for starting up the plant: Ensure successful commissioning in one attempt. 2. Develop a plan and consult relevant departments. 3. Purge the system after maintenance is completed. 3.1 Purge the instrument air pipelines. 3.2 Purge the air pipelines. 3.3 Purge the fuel gas pipelines. 3.4 Purge the process gas pipelines. 3.5 Purge the steam pipelines. 4. Check for air tightness and conduct pressure testing on the system. 4.1 Consult the dispatch team to establish the N5, N80, and N120 pipeline networks. 4.1.1 Establish the N5 pipeline network. 4.1.2 Establish the N80 pipeline network. 4.1.3 Establish the N120 pipeline network. 4.2 Check for air tightness and conduct pressure testing on the fuel gas system. 4.3 Check for air tightness and conduct pressure testing on the process gas system. 4.4 Conduct pressure testing with water in the water system. 5. Purge the system. 5.1 Purge the fuel gas system. 5.2 Purge the process gas system. 6. Requirements for personnel involved in commissioning. 6.1 Provide timely and accurate instructions. 6.2 The operation was performed properly and without errors. 6.3 Key steps are supervised by dedicated personnel. 6.4 State change – three-level inspection (operator, team, workshop). 6.5 Throughout the startup process, it is essential to adhere strictly to the “eleven no’s”: no oil leakage, no overspeeding, no fires, no overpressure, no gas leakage, no overheating, no vacuum conditions, no incomplete filling with liquid, no explosions, no defective products, and no water in the steam piping system. This post was last edited by Huang Xinhui on 2009-3-17 at 17:44.]