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Siemens to install wet air oxidation system in Qatar for ethylene expansion

06.10.2013  | 

The Zimpro wet air oxidation system from Siemens will be part of QAPCO’s facility in Mesaieed Industrial City. The new WAO system will provide QAPCO with more efficient wastewater treatment while eliminating noxious spent caustic sulfide odors. The facility should be operational in December 2013.

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Siemens Energy will supply a wet air oxidation ethylene spent caustic treatment system as part of an ethylene plant expansion, the company announced on Monday.

The customer is Qatar Petrochemical Company (QAPCO), one of the leading companies in the Middle East that produces and supplies ethylene.

The Zimpro wet air oxidation system from Siemens will be part of QAPCO’s facility in Mesaieed Industrial City, Qatar. The new WAO system will provide QAPCO with more efficient wastewater treatment while eliminating noxious spent caustic sulfide odors.

The facility is expected to go operational in December 2013.

QAPCO is expanding its ethylene cracking unit from a current capacity of 720,000 tpy to a new capacity of 900,000 tpy. The Siemens scope of supply encompasses a Zimpro wet air oxidation system as well as a complete power management system for this project.

The Siemens system will destroy odorous sulfide pollutants and generate a biodegradable effluent that can be discharged to conventional biological wastewater treatment, according to the company. 

Siemens officials say that Zimpro wet air oxidation has been widely accepted as the preferred technology for safe and reliable treatment of spent caustic wastewater generated in ethylene plants.

There have been nearly 40 systems installed for this application over the past 20 years.



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