祝贺马慧阳和田琛的论文发表在Catal. Sci. Technol.
Mercury-free catalysts for acetylene hydrochlorination to vinyl chloride: research progress and future trends
Huiyang Ma,
1 Chen Tian,
1 Shuya Dong, Jiawei Liu, Qingxin Guan,* and Wei Li*, Catal. Sci. Technol., 2026, xx, xxxx.
https://doi.org/10.1039/d6cy00379f
The acetylene hydrochlorination reaction plays a crucial role in the industrial production of polyvinyl chloride (PVC), particularly by providing the core pathway for vinyl chloride monomer (VCM) synthesis. However, the conventional mercury-based catalysts pose severe threats to the ecological environment and human health, thereby constraining the green development of the industry. Developing highly efficient mercury-free catalysts to replace mercury-based ones has thus become a research hotspot in the field of VCM synthesis via acetylene hydrochlorination. This review provides a systematic overview of the developmental history and research progress of mercury-free catalysts for acetylene hydrochlorination, covering three core systems: precious metal-based catalysts, non-precious metal-based catalysts, and metal-free catalysts. It focuses on the mechanisms by which strategies such as active-site engineering, support modification, and promoter introduction optimize catalyst performance, and also discusses relevant reaction conditions, advantages, and underlying mechanisms. Furthermore, the main challenges and future directions for the industrial application of this technology are outlined. This review aims to deepen the fundamental understanding of the design and mechanistic studies of mercury-free catalysts for acetylene hydrochlorination, offering effective design principles to address key industry issues such as low catalytic activity, poor stability, and high costs.
