The reaction of carbon monoxide and dichlorine over an activated carbon (Donau Supersorbon K40) to produce phosgene is examined. Individual reagent and product breakthrough measurements over the clean catalyst establish the magnitude of adsorption coefficients (K) to follow the trend: K_Cl2 > K_COCl2 >> K_CO. Chlorine adsorption measurements indicate a distribution of active sites that conforms to a two-site model, with the sites classified according to their enthalpy of adsorption. At 323 K, Type-I and Type-II sites exhibit respective adsorption capacities of 2.8 ± 0.3 and 1.5 ± 0.4 mmol Cl₂ g⁻¹_cat. Post-reaction temperature-programmed desorption measurements alongside elemental analysis (SEM-EDAX) confirm the presence of retained chlorine moieties at the catalyst surface. These observations are rationalised within a postulated reaction scheme that accounts for sustained phosgene synthesis over the selected activated carbon.

检查了一氧化碳和二氯在活性炭（Donau Supersorbon K40）上产生光气的反应。在干净的催化剂上进行单独的试剂和产物突破测量，_可以确定吸附系数（K）的大小，以遵循以下趋势：K _Cl2 > K _COCl2 >> K _CO。氯的吸附测量表明，活性位点的分布符合两位点模型，并且根据位点的吸附焓对其进行分类。在323 K下，I型和II型位点分别具有2.8±0.3和1.5±0.4 mmol Cl ₂  g ^-1_猫的吸附能力。反应后的程序升温脱附测量与元素分析（SEM-EDAX）一起确认了在催化剂表面存在残留的氯部分。这些假设在假定的反应方案中是合理的，该方案说明了在选定的活性炭上可持续的光气合成。