Expectations around emissions at fuel terminals and depots have been moving steadily, and the effect on existing installations is a growing theme in the sector. Operators are increasingly looking at the units and piping they already have and asking whether they will continue to meet what is expected of them, and what a sensible improvement path looks like without shutting the site down.
The direction of travel
The general trend is towards more attention on what leaves a site rather than only on what is installed. That shifts the emphasis from equipment lists towards demonstrated performance and, in practical terms, towards better measurement, better records and better maintenance of what already exists.
What operators are doing about it

| Approach | What it involves | Why it is chosen |
|---|---|---|
| Assessment first | Reviewing existing units and records before deciding | Avoids replacing equipment that is performing adequately |
| Staged improvement | Upgrading in phases tied to site activity | Keeps the terminal operating through the change |
| Measurement and records | Improving how performance is monitored and documented | Makes the case for further work and confirms the benefit |
| Piping review | Checking the lines serving the recovery equipment | Performance depends on the whole path, not only the unit |
| Maintenance discipline | Restoring scheduled maintenance to the intended level | Often recovers a large share of lost performance |
Why the piping keeps coming up
Recovery performance is a system property. If the line from the loading point to the unit introduces restriction, carries liquid where it should not, or cannot be inspected properly, the unit is working against a handicap it cannot overcome. Reviews therefore tend to look at the complete path, and piping improvements frequently feature in the resulting plan.
Practical considerations for a staged approach
- Establish the current condition and performance before committing to scope;
- Identify which measures give the largest improvement for the least disruption;
- Phase the work around terminal activity so that loading is never interrupted unnecessarily;
- Keep records from each phase, so the benefit is visible and the next decision is informed;
- Include maintenance and monitoring in the plan, not only hardware.
Frequently asked questions
Is replacement usually necessary?
Not always. Assessment frequently shows that improvements to maintenance, measurement and piping recover a significant part of the shortfall, with replacement reserved for equipment that is genuinely at the end of its life.
How disruptive is a staged upgrade?
Planned properly, phases can be arranged around loading schedules so that normal operation continues. The planning effort is mostly about sequencing and about releasing work in manageable blocks.
Where should an assessment start?
With records and observations from normal operation, followed by a physical review of the unit and the piping that serves it. Starting from the data usually stops the scope from growing beyond what is genuinely needed.
Luoyang Wohong Petrochemical Equipment Co., Ltd. designs and builds vapor recovery units, membrane separation skids and condenser based recovery packages for fuel terminals, depots and service stations. Contact us to discuss a system selection or upgrade study.
