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Thanks everyone. @MJCronin: It's designed, selected and purchased for the current service. :)

This test method will detect sulfur compounds from gasoline. In your experience, what are the usual problems encountered with this test method? Is it possible that a specific sulfur, which can be detected before, mixed in naphtha cannot be read by the instrument?

Hi, In our CCRU, we are injecting DMDS to our feed (Heavy Virgin Naphtha (HVN) from Naphtha Hydrotreating unit)to maintain a sulfur content of 0.3 - 0.5 ppm. However, the laboratory results for the CCRU Feed has been indicating 0.01 wppm of sulfur for a while now. We have verified the injection...

We are having problems in our steam disengaging drum. Basically, it is designed to accommodate 32 MT/hr steam production without carry-over but we are currently seeing this significantly after operating above 28 MT/hr. We are currently looking into the design of the drum for improvements. In...

We are planning to chemical clean our Combined Feed Heat Exchanger in the Reforming Unit this year. We are considering the use of C-Clean to remove suspected poly-nuclear aromatics deposited in the HE. With this, we would like to know, if you have, experience in using this material in cleaning...

Thank you ash9144 for the information. From your experience, what chemical was used for soaking and was the foulant identified? If so, what was it? Thanks in advance.

Hi! We have a Welded Plate Heat Exchanger (Packinox, Combine Feed Heat Exchanger) in our Continuous Catalyst Regeneration Unit (CCRU). We have long been experiencing increased Hot Approach Temperature in the exchanger and we already chemically cleaned it (2 years ago) with soda ash since we...

Hi, I'm a new process engineer in a refining industry and I'm currently handling the CCRU. A few months ago, we experienced deterioration on the performance of our recycle gas compressor (600# steam turbine-driven). We observed continuous decrease in recycle gas flow and we also experienced...