Comparison of oil and gas recovery processes at docks and tank farms

For gas stations and small urban oil depots, condensation + adsorption is definitely a good option. What about docks and large tank farms?

The condensation + adsorption process requires a refrigeration compressor, resulting in higher operational energy consumption； In many cases, condensation + adsorption does not yield good treatment results, leading to emissions that do not meet the standards ；

Aren’t they all supposed to be able to cool down? It will also emit substances that do not meet the standards; what fails to cool down?

Condensation + adsorption undoubtedly offers better results with a higher recovery rate and better safety, but energy consumption is a major issue; that is, the economic aspect, especially in large storage areas. Absorption + adsorption results in low operating costs, but the safety level may be slightly lower (I have heard of cases where activated carbon used for adsorption in gas-phase recovery systems caught fire due to excessive heating). Absorption is a process that is being phased out gradually, and is generally used only as a pretreatment step. Furthermore, regardless of the method used, the ultimate outcome depends greatly on the design and manufacturing capabilities of the device manufacturer, with a huge difference between them! Very, very, very large. These so-called environmental protection manufacturers are countless and of mixed quality; there are too many who are trying to scam people, with only a few that truly have the capability to do the job properly. Never mind, I won’t say more; talking too much only brings tears.

The final outcome is highly dependent on the design and manufacturing capabilities of the device manufacturer, with huge differences as a result! Strongly agree! I want to know which form is most commonly used in actual engineering applications these days?

We are in a tank farm, using condensation plus adsorption, with condensation as the main method and adsorption as a supplementary one. Ignoring energy consumption, the performance is decent. Also, safety considerations are extremely important during the design process!

I was wondering, what technology are you using at the moment? How effective is it? What levels can be achieved in terms of processing efficiency and the content of non-methane hydrocarbons in the exhaust gas? The condensation + adsorption process does not reach cryogenic temperatures, so energy consumption should be reduced significantly, right? Looking forward to your reply, thank you!

Deep cooling probably hasn’t been reached; three-stage condensation at around -70 degrees should suffice. The key costs should be quite high. I also want to know which company did it!

Same feeling: handshake

Everyone avoids talking about this issue; P;P;P because it’s too difficult to find a balance :(:(