A series of alkali metal (Li, Na, K, Rb and Cs) doped Ru/AC catalysts were prepared and were investigated for the acetylene hydrochlorination. The results showed a relationship between the catalytic activity and K loading, 0.5Ru0.5K/AC catalyst exhibited the highest acetylene conversion of 71.6% and vinyl chloride monomer productivity of 194 kg_vcmkg_Ru⁻¹ h⁻¹ under 180 °C and C₂H₂ hourly space velocity (GHSV) of 180 h⁻¹. The characterization results revealed that the addition of K promoted the dispersion of Ru species and inhibited the coke deposition. In addition, the VCM productivity increased with the atomic number of the alkali metal.

制备了一系列碱金属（Li、Na、K、Rb 和 Cs）掺杂的 Ru/AC 催化剂，并研究了乙炔氢氯化反应。结果表明催化活性与K负载量之间存在关系，0.5Ru0.5K/AC催化剂在180°C和C下表现出最高的乙炔转化率71.6%和194 kg _vcm kg _Ru ^-1  h ^{-1 的}氯乙烯单体生产率₂ H ₂时空速度（GHSV）为180 h ^-1。表征结果表明，K的加入促进了Ru物种的分散并抑制了焦炭沉积。此外，VCM 的生产率随着碱金属原子序数的增加而增加。