Wison Engineering, the largest private sector chemical
engineering, procurement and construction management (EPC)
service provider in China, has successfully started up its
designed methanol-to-olefins (MTO) plant featuring its
The plant, designed by Wison Engineering, is located in the
Nanjing Chemical Industry Park. It has successfully produced
qualified ethylene and propylene products which meet the
requirements set for polymer products, with a passing rate of
99.98% and 99.8% for ethylene and propylene products
This marks the first commercialization of Wison
Engineerings olefin separation technology for MTO plants.
It also demonstrates another successful commercialization case
of Chinas coal-to-olefins technology, which will facilitate
the coal-to-chemical industry development roadmap in China,
according to company officials.
With planned annual production of 300,000 tpy of
ethylene and propylene, the MTO plant is one of the production
units of Wison (Nanjing) Clean Energy. Following the
commissioning of the first Shenhua Baotou coal-to-olefin project, this is the first MTO
project in the world to apply advanced industrial MTO
technology from Honeywell's UOP.
The Wison Engineering olefin separation technology featured
in the MTO project utilizes itsproprietary
pre-cutting and oil absorption" technology, which reduces energy
consumption and lowers investment costs while also improving
the olefin recovery rate, allowing for more stable production
and bringing longer operating cycles.
This technology broke the bottleneck in the technological
difficulties that existed in the domestic industry, according
to Wison officials. As a result, the China National Petroleum
& Chemical Planning Institute selected it to be the
recommended technology for the Twelve-Five
Coal-to-Olefins Upgrade Demonstration Project, making it one of
Wison Engineerings core technologies.
The close cooperation between Wison Engineering and UOP on the
technological front has pushed forward the development of
domestic MTO technology and the upgrading of the modern
Since its development in 2007, Wison Engineerings
separation technology in MTO plant has obtained four domestic
invention patents and one invention patent in Indonesia. The
technology has been adopted by enterprises such as Shandong
Yangmei Hengtong Chemicals, Shenhua Xinjiang New Materials
Sailboat Petrochemical and Pucheng Clean
In addition to providing proprietary technology and process package
design, Wison has also been commissioned to undertake the
basic design, overall design and detailed engineering services
of this MTO project as well as its ancillary and utility facilities. The company was
also involved throughout the entire project construction phase.