VOC remediation for storage tanks
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Currently, environmental protection authorities are taking very strict actions to address VOC issues in chemical storage enterprises; they require all such enterprises to conduct LDAR analyses and develop individual plans for each tank in order to control VOC emissions. The issue is that, according to relevant regulations, chemical storage tanks involved in photochemical reactions with a boiling point below 260 degrees may all require VOC modification ； In both Category A and Category B cases, we have carried out VOC collection and treatment. However, according to the standards, some chemical substances with extremely low volatility are also included in the scope of regulation. I would like to ask everyone how they address this situation – is it also mandatory to carry out VOC reduction measures?
Little exposure to chemical engineering; just picking up some basics**
It’s one plan per factory, right? Where are you from? The requirements are so strict. It’s difficult to comment on the issues with such macroeconomic policies. It’s a mindset of not taking the initiative nor resisting; deal with water with earth, and confront soldiers with generals, haha
But here we require rectification within a set time limit; there is a time constraint.
There’s nothing you can do about that... Many companies have installed new exhaust pipes... What else can be done?
Only by solving the problems technically can we eliminate the underlying risks and address related policies. Recently, the Sinopec Federation is holding a training workshop in Jinan; LZ might want to take a look at it, as it could be relevant to the issues you’re facing
Is there a specific treatment process route?
After centralized treatment in the tank farm, VOCS are discharged; catalytic incineration and activated carbon absorption are used at the end stages. Cooling, washing, and absorption are commonly employed, but the end-stage treatment does not meet the required standards.
Give priority to the integrated organic membrane process for treating the high-concentration VOCs at the loading station
Low-temperature diesel absorption + RTO – are there any cost-effective pretreatment processes available at present?
If the local environmental protection authorities have strict requirements, modifications are necessary, and we have carried out such modifications here.