PE&T has resolved within short period of time SCORE NGL Design Demethaniser column bottom product offspec and column capacity limitation by identifying packing severe flooding that was caused by excessive feed gas condensation due to loss of column pressure while ramping-up the residue gas compressor/high pressure compressor speed.  The excessive side liquid circulation was reduced by manipulating split flows to side thermosyphon heat exchangers and adjusting reboiler steam flow. To prevent re-occurrence of similar events during transient conditions, PE&T has introduced additional alarms and provided additional guidelines for Unit start-up and operating mode changes.

If you experience distillation column product quality off-specification or capacity limitation you can contact us at: info@peng-tech.com

One of the common issues with distillation columns is performance degradation of reboiler leading to bottom product off-spec e.g. high RVP of crude/condensate stabilizer column bottoms, high lean amine acid load of amine regenerator etc. PE&T has troubleshooted those limitations by reducing operating pressure ensuring downstream compressor or valve capacity are not compromised, also increasing feed stream relative volatility to maintain desired Unit throughout and on-spec operation until planned shutdown.

If you are experiencing distillation column reboiler performance limitation but and seeking options to utilize available room for adjustments before Unit shutdown you can contact us at: info@peng-tech.com

PE&T has developed technical monitoring tools to monitor equipment performance and detect any degradation at early stage for timely intervention thereby preventing to undesired consequences e.g. heat exchangers fouling rate increase, distillation column trays/packing approach to flooding increase, compressor or pump efficiency decrease etc. Also, PE&T has developed for surveillance reports defining engineering limits for key equipments and trends e.g. in PI Vision to see the changes in performance over time and intervene proactively before alarms are reached.

If you need to develop tools for monitoring Unit or equipment performance to ensure that it operates at it’s best efficiency point please contact us at: info@peng-tech.com

The client's production was constrained by the MEROX unit during summer operating conditions, limiting the facility's ability to achieve planned throughput. Our team conducted a comprehensive debottlenecking study to safely increase processing rates beyond the original design capacity without major hard modifications.

The assessment included process simulations, equipment performance evaluations, hydraulic analyses, and review of operating data to identify constraints within the MEROX process and PSV adequacy check.

As the oil and gas fields mature, the wellhead fluid properties change affecting downstream processing plant performance. PE&T has performed equipment rating calculations and defined operating limitations for the new conditions. For example:

• Defined minimum operating pressure profile for gas processing train starting from slug catcher → AGR → Dehydration → NGL recovery for reduced wellhead pressure to meet product specifications without reducing production.

• Performed rating assessment of AGR, SRU and TGT units for increased feed H2S in the sour gas and identified available room for operating parameters adjustment.

• Assessed crude oil dehydrator/desalter performance and estimated additional wash-water requirements for increased salts concentration in produced water.

If you are experiencing changes in the feed gas/oil/condensate composition to your plant and need to assess the impact on the downstream units performance and define new operating guidelines, please contact us at: info@peng-tech.com

To maximize H₂S absorption and CO₂ rejection in the solvent contactor, an optimization study was performed by developing a rated amine unit simulation model benchmarked against actual plant operating data.

The study included optimization of the solvent feed tray location, adjustment of solvent circulation rate and solvent concentration (considering the impact of degradation products and Heat Stable Salts), definition of optimum gas/solvent inlet temperatures, and evaluation of solvent regeneration performance to achieve the targeted lean loading.

The optimization resulted in reduced SOx emissions from the Thermal Oxidizer/Incinerator and minimized acid gas recycle (lower CO₂ content) from the Solvent Regenerator back to the front end of the Sulphur Recovery Unit.

For further details, please contact P&T at info@peng-tech.com.