On August 5, 2026, two Xingtai Municipal Science and Technology Projects, namely “Research and Development of Catalyst Technology for Synergistic Removal of NMHC and CO from Coke-Oven Flue Gas” and “Technology Development for Preparing Carbon Nanotubes and Catalysts via High-Value Utilization of Coal-Coking Products”, jointly undertaken by Xingtai Risun Technology and China Coal Risun Coking Research Institute, successfully passed expert-group acceptance. This marks another major breakthrough for Risun’s Xingtai Park in core technologies for green low-carbon transformation and high-value utilization of coal-coking resources.

The acceptance review was organized by Xingtai Municipal Bureau of Science and Technology, with a review panel composed of five experts. Relevant personnel from Xingtai Risun Technology and China Coal Risun Coking Research Institute presented the project reports.

The project for synergistic removal of NMHC and CO from coke-oven flue gas was developed against the backdrop of increasingly stringent environmental-protection regulations. Targeting elevated concentrations of NMHC and CO in flue gas caused by flue-gas leakage from poorly-maintained old coke ovens, the project carried out research on catalyst technology for synergistic removal of NMHC and CO. One set of evaluation equipment for coke-oven flue-gas catalysts was built, and a dedicated catalyst for synergistic removal of NMHC and CO was successfully developed, delivering remarkable removal performance in pilot-scale verification. It provides reliable technical support for ultra-low-emission retrofits in the coking industry.

Aiming at the problem that large-volume gas-phase and liquid-phase by-products rich in C-H components from coking production are mostly burned as low-value fuel, resulting in low energy-use efficiency and waste of high-value carbon resources, the carbon-nanotube project integrates nanomaterial science and catalytic chemistry. It has developed a special catalyst system and corresponding preparation processes suitable for mixed coking-derived carbon sources, overcame technical bottlenecks related to raw-material adaptability, and successfully produced high-quality carbon nanotubes from coking by-products. The technology offers technical references for product-mix upgrading and low-carbon transformation of coking enterprises.

The project team elaborated on the research background, project approval, experimental procedures, innovative achievements and future prospects of the projects, and provided detailed responses to questions raised by experts. With rigorous and comprehensive presentations, the projects were unanimously approved for acceptance by the expert panel.

During the acceptance meeting, the expert panel put forward suggestions for follow-up R&D and technical improvement, which can guide the subsequent transformation of research achievements and point out directions for further scientific-research work of relevant R&D teams. It will also inspire Risun’s researchers to participate more actively in government-sponsored science and technology programs and fuel the group’s innovation of scientific and technological achievements.