DuPont MECS DynaWave scrubbers to be used in Petronas’ RAPID refinery
DuPont MECS DynaWave technology, licensed by MECS, Inc., a wholly owned subsidiary of DuPont, has been selected by a major international oil and gas services provider for the installation of three custom-engineered scrubbing systems for sulfur dioxide removal at PRPC Refinery & Cracker Sdn. Bhd, a subsidiary of Petronas, the Malaysian National Oil Company. The DynaWave units are set to be delivered to the company’s RAPID Project refinery in Pengerang, Southern Johor, Malaysia, before the end of the year for subsequent fitting.
“Each of the specially engineered DynaWave scrubbers will treat the off-gas of one sulfur recovery unit (SRU) and its dedicated tail gas treatment unit (TGTU),” said Angus Yip, MECS sales manager for South East Asia and Australia - New Zealand. “PRPC requires SO2 emission levels to be lower than 150mg/DNm3which DynaWave technology can guarantee under any given set of upstream conditions. Malaysia is now the second country in Asia Pacific and the first in South East Asia to benefit from the added reliability that DynaWave technology can offer for SRU emissions control and air quality improvements.”
All three DynaWave scrubbers consist of two reverse jet stages located in an inlet barrel which is connected to a disengagement vessel. They are capable of handling high inlet acid levels, which make it possible to bypass upstream TGTUs while still meeting and even exceeding regulatory emissions requirements. DynaWave scrubbers can be designed to cope with inlet temperatures of up to 1200°C, but for PRPC the choice fell on optimizing heat recuperation from the incinerator so that these DynaWave scrubbing units will take incoming gas at around 300-350°C.
The RAPID (Refinery and Petrochemicals Integrated Development) project represents a significant investment of $16 B for PRPC. Scheduled for completion in 2019, it is expected to be capable of processing 300 Mbpd and will operate three 470 metric tpd sulfur recovery units.
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