China Expansions: Sinopec commissions speciality PVA facility; Hohhot Petrochemical advances US$2.9 bn ethane-to-ethylene project

China Petroleum & Chemical Corporation (Sinopec) has commissioned a specialty polyvinyl alcohol (PVA) resin facility with an annual production capacity of 50,000 tonnes at its subsidiary, Chongqing SVW Chemical Co. The facility achieved stable operation during its initial start-up and produced products that met quality specifications, with the first shipment already sent to Europe, it adds.

The new facility increases the site's total PVA production capacity to 210,000 tonnes/year, making it the world's largest single-site production base for high-end PVA. The additional capacity will strengthen the supply of specialty materials used in photovoltaics, electronics, optical films, pharmaceuticals and other high-value applications.

PVA is a water-soluble polymer with biodegradable properties and a broad range of industrial and consumer uses. Specialty grades with high purity and transparency are used in optical films, polarizers, pharmaceutical products and safety glass for automobiles and high-speed trains. PVA is also used in textiles, construction materials and water-soluble packaging.

SVW Chemical offers more than 100 PVA grades designed for different performance requirements and market applications. The new facility uses advanced alcoholysis and precision purification technologies to support the large-scale production of specialty PVA products.

During construction, the project team addressed technical challenges involving precise temperature control and consistent product quality. A new polymerisation process increased production capacity by 40% compared with earlier-generation equipment. The facility also incorporates four exhaust gas and wastewater recovery units, along with an automated packaging system, to improve resource efficiency and operational efficiency.

SVW Chemical has more than 40 years of experience in PVA research and manufacturing. Its portfolio has grown from one PVA grade at the beginning of operations to more than 100 today. More than 70 products are exported to over 40 countries, providing the company with an established foundation in international markets, including Europe and the US.

In other news, PetroChina's Hohhot Petrochemical Branch is advancing plans for a major ethylene complex in Inner Mongolia, with local authorities launching a public social stability risk assessment for the proposed project. The development marks continued progress on preliminary work for the 1 million tonnes/year ethane-to-ethylene facility.

The project, located in the Tuke Industrial Project Zone within the Sulige Economic Development Zone in Ordos City, represents an investment of approximately US$2.9 billion. Construction is expected to run from June 2027 through June 2029. In addition to a ethane cracking unit, the complex will include downstream polyolefin production units, utilities, storage and transportation infrastructure, and railway facilities.

The plant will use an ethane cracking process, which offers higher ethylene yields, lower energy consumption, and reduced carbon emissions compared with conventional naphtha cracking. Feedstock will be sourced from ethane associated with natural gas production in the nearby Sulige Gas Field, providing a locally integrated supply chain and helping reduce exposure to crude oil price volatility.

Once operational, the project is expected to strengthen ethylene and polyolefin supply in North and Northwest China, where production capacity remains limited compared with eastern regions.

By establishing a new large-scale ethylene production base, the facility is intended to improve regional supply security, reduce reliance on imports and shipments from other parts of China, and support a more balanced domestic distribution of ethylene production capacity.

SUBSCRIBE to Get the Latest Updates from PRA    Click Here»