Methods for shutting down and replacing the wastewater stripping system and the amine solution regeneration system?
Thread Content
I would like to ask my colleagues: how is it possible to carry out shutdown and replacement operations in the wastewater stripping and amine solution regeneration systems without causing disturbances to the local atmosphere? Is steam purging appropriate? Chemical cleaning again?
All emissions are subject to environmental protection requirements. As for what measures to take, that is an internal matter for the company. Displacement and purging are not the same thing; displacement does not necessarily require a strong airflow to remove substances, so there is no need to worry about noise generated by the airflow disturbing nearby residents. Purging is different; it generates noise and disturbs the residents. However, choosing a short period during the day or using a burst purge can solve this problem. The displacement gas used for displacement is mostly steam or nitrogen. But be sure to note that if work is to be carried out in a \"confined space,\" the air there must be replaced with appropriate air, and approval from the safety department is required. The replacement gas must not be dangerous in combination with the substance being replaced.
Extend the tower washing time; maintain a small amount of steam during tower washing, use hot water for cleaning the tower. If possible, carry out deodorization and passivation of the system, then cool it with air cooling during steam purging, and finally pass the air-cooled material through steam once more.