Yidu Xingfa Chemical Awards DuPont Contract for a 3,600 MTPD MECS^® MAX3™ Sulfuric Acid Plant

Yidu Xingfa Chemical Co. Ltd. (Xingfa) has awarded DuPont Clean Technologies contracts for the engineering and technology license for a 3,600 MTPD MECS® MAX3™ sulfuric acid plant. This project will make the Xingfa sulfuric acid plant one of the largest in China.

Xingfa is expanding its existing site, located in the Hubei province near Yichang city, with the aim of roughly doubling the phosphate fertilizer capacity. The new MECS® MAX3™ sulfuric acid plant will process 1,200,000 tons of sulfuric acid per year, as well as support the production of an additional 400,000 tons per year of phosphoric acid, 400,000 tons per year DAP and 35,000 tons per year of potassium phosphate monobasic.

The new MECS® MAX3™ sulfuric acid plant will enable the Xingfa site to meet or exceed the Chinese Ministry of Environmental Protection’s strict emission requirements which govern the location in the sensitive Yangtze river basin area. “DuPont Clean Technologies is very pleased to be providing its proprietary MECS® MAX3™ technology for Xingfa’s expansion project to enable the company to become one of the most efficient fertilizer producers in China. This MAX3™ sulfuric acid plant is not only a significant step for both DuPont and Xingfa, but also for the sulfuric acid industry,” said Eli Ben-Shoshan, president of DuPont Clean Technologies, “Never before has sulfuric acid technology delivered more value to the end user. MAX3™ not only offers sulfuric acid plants savings in water usage, time and money, but it also allows them to recover more energy while achieving best-in-class emission levels.”

The MAX3™ sulfuric acid plant for Xingfa’s expansion project will have both high pressure and intermediate pressure steam generation that will be used to produce electricity and provide heat to the plant. The MAX3™ sulfuric acid plant combines a suite of technologies, including two recent technology breakthroughs – SolvR® and SteaMax™ heat recovery – in a revolutionary simplified sulfuric acid flow scheme. The Xingfa configuration will produce more than 1.5 tons of high pressure steam per ton of acid, which is an increase of more than 25 percent over conventional acid plant technologies. SolvR® is the second-generation regenerative technology which demonstrated best in class SO2 emission abatement at the first commercial installation.

MECS® MAX3™ technology is on the leading edge and further advances DuPont Clean Technologies’ commitment to delivering value to producers of sulfuric acid. This is the first time a sulfuric acid technology has been able to deliver this level of heat recovery, emission performance and favorable capital expense. Furthermore, MECS® MAX3™ sulfuric acid plants are designed for a high on-stream time to avoid disrupting the downstream phosphoric acid production while also providing best in class SO2 emission abatement in compliance with local and country environmental requirements.

The DuPont Clean Technologies division applies real-world experience, history of innovation, problem-solving success, and strong brands to help organizations operate safely and with the highest level of performance, reliability, energy efficiency and environmental integrity. The Clean Technologies portfolio includes STRATCO® alkylation technology for production of clean, high-octane gasoline; IsoTherming® hydroprocessing technology for desulfurization of motor fuels; MECS® sulfuric acid production and regeneration technologies; BELCO® air quality control systems for FCC flue gas scrubbing, other refinery scrubbing applications and marine exhaust gas scrubbing; MECS® DynaWave® technology for sulfur recovery and tail gas-treating solutions; and a comprehensive suite of aftermarket service and solutions offerings.