Thread Content
The gas-phase heat recovery and utilization project for the formaldehyde cycle tower in Chiyuan Chemical’s BDO plant was successfully put into operation on March 11, 2025. On February 24th, this project was launched successfully, marking the world’s first use of a pressurized heat pump distillation latent heat energy-saving technology in a formaldehyde cycle tower within the \"alkyne-aldehyde BDO process\". This project integrates key technologies such as low-temperature difference heat exchange, multi-stage turbine steam pressurization, and integrated ITCC control for turbines, overcoming the challenges associated with the condensation of formaldehyde mixtures and heat recovery. After the renovation, it reduces carbon emissions by over 26,000 tons per year. The project with an annual production capacity of 60,000 tons of PBAT/PBS is about to go into operation. The Luoling facility for producing 60,000 tons per year of polybutylene adipate terephthalate (PBAT)/polybutylene succinate (PBS) is a key project in Chongqing for 2024, as well as a key project under Jianfeng Group’s 14th Five-Year Plan. This project was carried out by Chiyuan Chemical Branch of Chongqing Jianfeng New Materials Co., Ltd., against the backdrop of the implementation of environmental protection policies such as the \"dual carbon\" goals and plastic restriction measures, Chongqing’s efforts to accelerate the upgrading of its manufacturing sector, and the pursuit of establishing a \"33618\" modern manufacturing cluster system. Construction of this project began in May 2023; the civil work was completed in January 2024, installation work started in February, and the mechanical installation of the main equipment was finished in September. To date, the overall project progress rate is 95%, and the conditions for starting up the plant with materials are met; operation is expected to begin in the first quarter of 2025.