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Sulphuric Acid on the WebTM Technical Manual DKL Engineering, Inc.

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Acid Plant Database  April 13, 2017

Owner Zhejiang Petroleum and Chemical Co. (ZPC) -
Location Dayushan Island
Background -
Website -
Plant -
Coordinates* -
Type of Plant Acid Regeneration
Gas Source Alkylation Spent Acid
Plant Capacity 858 MTPD
Emissions -
Status Under Construction
Year Built 2018
Technology MECS
Contractor -
Remarks -
Pictures -
General -
References -

April 13, 2017 - Zhejiang Petroleum and Chemical Co. (ZPC) in China has awarded and signed contracts for the engineering, technology license and proprietary equipment for a MECS sulfuric acid regeneration (SAR) unit, licensed by DuPont Clean Technologies.  ZPC is constructing a greenfield refinery and petrochemical project on Dayushan Island, just off the coast of eastern China, near Shanghai and Ningbo. The $15 B project is the largest privately led petrochemical and refining project in China’s history. The project will be executed in two phases with the first phase coming online in late 2018. After completion, the complex will have a refining capacity of 40 MMtpy, or 800,000 bpd.  The MECS SAR unit for the ZPC petrochemical complex will have a capacity to regenerate 858 mt of spent sulfuric acid. The unit will produce a combination of products consisting of 98.3 wt% sulfuric acid, 99.2 wt% sulfuric acid, and 20% oleum. Furthermore, the MECS SAR unit is designed to meet the Chinese Ministry of Environmental Protection’s current emission requirements for SO2, NOx and sulfuric acid mist.  “China’s Ministry of Environmental Protection has enacted some of the most stringent point source emission requirements in the world,” said Jason Hartman, global market specialist for the MECS SAR technology. “DuPont Clean Technologies is uniquely positioned to meet these new standards through enhancements to our MECS SAR technology. These enhancements include the MECS Vectorwall furnace, DynaWave scrubbing and Brink mist eliminators. When built, the SAR unit at ZPC’s petrochemical complex will achieve world-class environmental emissions, reliability and on-stream time.”

April 29, 2016 -
A private-led Chinese group is planning to build a $15 billion mega-petrochemical complex on an island near Shanghai, in what would be the country's first and largest energy installation to be built by a non-state investor, industry sources said.Zhejiang Petrochemical, 51 percent owned by textile giant Rongsheng Holding Group, last month awarded a key design contract for the project, which could compete head-to-head with state-owned firms such as Sinopec that dominate the market.The project is one of the first concrete signs of Beijing's stated desire to experiment with "mixed ownership" - or partial privatisation - in its massive state-controlled energy sector to boost efficiency and drive greener growth."The project was inspired by Premier Li Keqiang's visit in 2014 that called for a pilot 'mixed ownership' project led by private companies," said a senior industry source close to Rongsheng, referring to Li's visit to the city of Zhoushan, where the project will be located.Rongsheng has partnered with local firms, including a state-owned chemical producer, to build the complex, which would include a 400,000 barrels per day refinery and a 1.4 million tonnes a year ethylene plant.Details of how the project would be funded were not available.Zhejiang Petrochemical has awarded the designing contract to three firms, including China Huanqiu Contracting and Engineering Corp and Sinopec's Luoyang Petrochemical Engineering Corp, for the project, to be built on the 6.25 sq km (2.4 sq mile) Dayushan Island, off eastern China, near the ports of Shanghai and Ningbo.The project, which needs Beijing's approvals including environmental clearances, is likely to start up around 2020, according to two sources with knowledge of the plan.Rongsheng's press department was not immediately available for comment. Local Zhoushan city officials declined to comment.  Beijing has since July 2015 allowed more than 20 small independent refineries, nicknamed "teapots", to import crude oil for the first time, leading to refining overcapacity that has resulted in China exporting record volumes of oil products."The entry of private firms into the refining business was a fruit of the sector reform, but the capacity surplus is a reality to face," said Li Shousheng, chairman of China Petroleum and Chemical Industry Federation.Rongsheng, founded in 1989 as a small textile firm, has grown into a conglomerate that is also involved in property and logistics with more than 50 billion yuan ($7.7 billion) worth of assets.It is China's largest independent producer of PTA, a synthetic fibre derived from petroleum for making textile and packaging materials.Despite being a refining giant, China replies on imports for more than 40 percent of its petrochemical needs.Rongsheng is among a group of independent petrochemical manufacturers long interested in expanding into the oil refining business that provides the industry's feedstocks.


MTPD - Metric Tonne per Day           STPD - Short Ton per Day
MTPA - Metric Tonne per Annum      STPA - Short Ton per Annum
SA - Single Absorption
DA - Double Absorption

* Coordinates can be used to locate plant on Google Earth