Press Presse Press Presse
Industry Sector
Industry Automation Division
Warrendale, Pennsylvania, USA
March 16, 2012
Siemens delivers yet another wet air oxidation system to Sinopec
Siemens Industry Automation Division is providing another Zimpro wet air oxidation (WAO)
system to treat wastewater at Sinopec Yangzi Petrochemical Co., Ltd.’s facility, near the
Yangzi River in Jiangsu Province, People’s Republic of China. The most recent of seven
Zimpro WAO systems installed at Sinopec facilities will be used to treat sulfidic spent
caustic wastewater streams generated in the production of petrochemicals. The WAO
system is designed to eliminate odorous sulfide pollutants and generate a biodegradable
effluent that can be discharged to conventional biological wastewater treatment. Using the
Siemens technology will help make petrochemical production more environmentally
friendly. The Yangzi system will treat approximately 4 m3/hr (17.6 gpm) of wastewater. The
system is anticipated to be operational by the end of 2012.
Wet oxidation is the oxidation of soluble or suspended components in an aqueous environment
using oxygen as the oxidizing agent. When air is used as the source of oxygen, the process is
referred to as wet air oxidation (WAO). The process will oxidize odorous reduced sulfur species
such as sulfides and mercaptides. The system will also break down complex organic contaminants,
such as phenols, to either carbon dioxide and water, or biodegradable organics.
The Yangzi facility includes both a refinery and a petrochemical plant where fuels and ethylene are
produced. This Sinopec project marks the ninth Zimpro WAO system installed by Siemens Water
Technologies in China for spent caustic treatment.
Sinopec Yangzi Petrochemical Company Limited is a wholly-owned subsidiary under China
Petroleum & Chemical Corporation. The company is mainly engaged in refining crude oil as well as
in producing and marketing hydrocarbon derivatives. At present, the company operates more than
60 sets of large-scale petrochemical units and produces more than 9 million t/a products, covering
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Siemens AG
Corporate Communications and Government Affairs
Wittelsbacherplatz 2, 80333 Munich
Germany
Reference number: IIA201203.2817e fp
Media Relations: Peter Jefimiec
Phone: +49 911 895-7975
E-mail: peter.jefimiec@siemens.com
Siemens AG
Industry Sector - Industry Automation Division
Gleiwitzerstr. 555, 90475 Nuremberg, Germany
over 60 varieties in five categories, i.e. polyolefin plastics, polyester feedstock, basic organic
chemical raw materials, product oil, and synthetic rubber.
Further information about solutions for water treatment is available at:
www.siemens.com/water
You can find the text on the Internet at: www.siemens.com/press/industryautomation/pressreleases
Zimpro is a trademark of Siemens and/or its affiliates in some countries.
Siemens Industry Automation Division is providing another Zimpro wet air oxidation (WAO) system
to treat wastewater at Sinopec Yangzi Petrochemical Co., Ltd.’s facility. The WAO system is
designed to eliminate odorous sulfide pollutants and generate a biodegradable effluent that can be
discharged to conventional biological wastewater treatment.
You can find this photo on the Internet at www.siemens.com/ia-picture/2817
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Siemens AG
Corporate Communications and Government Affairs
Wittelsbacherplatz 2, 80333 Munich
Germany
Reference number: IIA201203.2817e fp
Media Relations: Peter Jefimiec
Phone: +49 911 895-7975
E-mail: peter.jefimiec@siemens.com
Siemens AG
Industry Sector - Industry Automation Division
Gleiwitzerstr. 555, 90475 Nuremberg, Germany
Please phone us if you require a copy of the photo.
You can also receive Siemens Industry Automation press releases electronically.
Please send us an e-mail.
Contact USA:
Ms. Allison Britt
Corporate Public Relations
Siemens Industry, Inc.
Water Technologies Business Unit
Hoffman Estates, IL 60192 USA
Phone 1-847-713-8477
E-mail address allison.britt@siemens.com
The Siemens Industry Sector (Erlangen, Germany) is the world’s leading supplier of innovative and environmentally
friendly products and solutions for industrial customers. With end-to-end automation technology and industrial software,
solid vertical-market expertise, and technology-based services, the Sector enhances its customers’ productivity,
efficiency, and flexibility. With a global workforce of more than 100,000 employees, the Industry Sector comprises the
Divisions Industry Automation, Drive Technologies and Customer Services as well as the Business Unit Metals
Technologies. For more information, visit http://www.siemens.com/industry
The Siemens Industry Automation Division (Nuremberg, Germany) supports the entire value chain of its industrial
customers – from product design to production and services – with an unmatched combination of automation
technology, industrial control technology, and industrial software. With its software solutions, the Division can shorten
the time-to-market of new products by up to 50 percent. Industry Automation comprises five Business Units: Industrial
Automation Systems, Control Components and Systems Engineering, Sensors and Communications, Siemens PLM
Software, and Water Technologies. For more information, visit www.siemens.com/industryautomation
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Siemens AG
Corporate Communications and Government Affairs
Wittelsbacherplatz 2, 80333 Munich
Germany
Reference number: IIA201203.2817e fp
Media Relations: Peter Jefimiec
Phone: +49 911 895-7975
E-mail: peter.jefimiec@siemens.com
Siemens AG
Industry Sector - Industry Automation Division
Gleiwitzerstr. 555, 90475 Nuremberg, Germany