Valmet to deliver key pulp mill tech to Shandong Sun Paper’s Yandian pulp mill

Headquartered in Yanzhou District, Jining, Shandong Province, Shandong Sun Holdings Group Co., Ltd is a multinational corporation integrating forestry, pulping, and papermaking.

The company operates on three bases in Shandong and Guangxi in China, and in Laos.

Valmet’s delivery, the value of which has not been disclosed, also includes analyzers and measurements for fiber line as well as an optimizer and safety-related systems for the recovery boiler.

Valmet has been a trusted partner for our recent chemical pulp lines. The previously delivered technologies to Beihai have proven high-availability and efficient utilization of raw materials. Valmet team has constantly supported our targets to secure the successful outcome of our projects. This is the third cooking and fiberline delivery and second recovery boiler delivery from Valmet since 2020, and we are confident in yet another successful project with them, said Zehua Liu, General Manager of Sun Paper.

The new Shandong Sun Paper mill will produce 600,000 tonnes of pulp per annum and is scheduled to start up during the last quarter of 2026.

Sun Paper has trusted our cooking, fiberline, and recovery boiler solutions for several of their recent pulp projects. With excellent collaboration, we were able to create a concept to answer our customers’ needs. With our strong local presence in China and competitive technology and services solution, we are able to deliver this project successfully even with the tight project schedule, said Sami Riekkola, Business Area EVP, Pulp Energy and Circularity, Valmet.

State-of-the-art technologies

The cooking and fiberline will feature leading process technology, including the latest developments of Valmet Continuous Cooking technology, to reach excellent efficiency in energy and raw material utilization.

A high-end product quality with low effluent flows and high environmental performance will be secured with the latest generation of Valmet TwinRoll wash presses throughout the fiberline in combination with Valmet’s screening, oxygen, and bleaching technology.

Valmet Fiberline Analyzer and measurements for fiberline control are also part of the delivery. The fiberline will have a capacity of 600,000 tonnes per year.

The delivery for the recovery island includes a Valmet Recovery Boiler and Ash Crystallization. The high-power recovery boiler is designed for long lifetime and long campaigns between cleaning shutdowns.

The boiler will have a capacity of 3,500 tonnes per day. The high-power features will enable higher renewable electricity production for the mill’s use.

The ash crystallization secures efficient removal of chloride and potassium from the mill chemical cycle, which reduces corrosion and helps to minimize emissions.

Valmet Recovery Boiler Optimizer and safety-related systems for the recovery boiler are also part of the scope.

We are very happy to continue our excellent cooperation with Sun Paper in this strategic investment. In addition to previous pulp, paper, and automation technology deliveries, we also have extensive services cooperation with the customer. In this project, our Chinese teams will play a key role in engineering, procurement, project management, and offering site services to the customer, said Xiangdong Zhu, EVP China at Valmet.