Commissioning and purging of atmospheric and vacuum distillation units
Thread Content
What medium is best for purging a vacuum distillation unit during its initial startup?
Purge with nitrogen. Since there are no residual flammable substances in the equipment used for the first drive, it mainly consists of iron shavings and welding slag left over from equipment manufacturing, so steam purging is not required ； Furthermore, nitrogen is essentially an inert gas, making it safe ； Also, nitrogen is inexpensive and can be used at room temperature, making it convenient.
What are the advantages and disadvantages of using steam for purging directly?
Use water first, then air, and finally steam; or use water first and directly apply nitrogen
Direct nitrogen purging; there are specifications for nitrogen purging