06.05.2021. thyssenkrupp Uhde has won an order from SEDIN Engineering Co., Ltd. to build and supply four new low-emission, stamp-charged coke oven batteries with a total capacity of 3.9 million t/a for Hohhot Risun China Gas Energy Co. Ltd in China. The new batteries will be in-stalled at Qing Shui He Industry Park in Hohhot, Inner Mongolia. They will include thyssenkrupp’s proprietary EnviBAT® system to reduce emissions during the coking process as well as the Cokemaster® automation system for optimised production processes.
“With this state-of-the-art, low-emission plant, SEDIN and thyssenkrupp are delivering an im-portant contribution to making the Chinese coke plant industry more environmentally friendly,” says Michael Petzinna, Executive Director of the Coke Plant & Inorganic Acids operating unit. “We look forward to continuing our collaboration and are proud to contribute our decades of plant engineering and process know-how to the project.”
The project is part of the modernisation of the Chinese coke plant industry in which old plants are being shut down and replaced by new, state-of-the-art, low-emission systems. Worth an amount in the two-digit million-euro range, the order comprises the provision of the technology and engineering, procurement of equipment and monitoring and commissioning of the new plant.
“In thyssenkrupp we have selected a reliable partner for the EPC project of Hohhot Risun China Gas Energy. The company combines extensive plant engineering experience with efficient technologies that meet and exceed the most exacting environmental standards. Together we will play a part in driving the sustainable modernisation of the chemical industry in China,” said Mr. HUANG, Shuntai, Vice Managing Director of SEDIN Engineering at the contract signing.
EnviBAT single-chamber pressure regulation system reduces emissions
thyssenkrupp’s EnviBAT single-chamber pressure regulation system is already in use in more than 30 batteries and thus over 2,100 ovens around the world. Constant, intelligent pressure monitoring and adjustment throughout the process optimises raw material use and minimises emissions. EnviBAT prevents high gas pressures arising in the individual chambers of the batteries at the start of the coking process, which in turn almost completely eliminates emissions through the oven doors or roof. Further efficient measures such as flexible, spring-loaded door systems and water-filled rising pipe covers are all geared toward preventing emissions from the battery.
Optimized production with Cokemaster
The entire production process can be automated and optimised using the Cokemaster system developed by thyssenkrupp. The integrated system comprises various stand-alone modules that can also be used for individual applications. They include for example automatic temperature measurement in coke ovens, a dynamic calculation model for thermal energy and other solutions along the entire production chain. Cokemaster can also be retrofitted in existing plants.
(Source: thyssenkrupp Uhde)