Catalytic hydrodechlorination of 1-chlorooctadecane, 9,10-dichlorostearic acid, and 12,14-dichlorodehydroabietic acid in supercritical carbon dioxide

Effects of Reduced Sulfur Compounds on Pd-Catalytic Hydrodechlorination of Trichloroethylene in Groundwater by Cathodic H2under Electrochemically Induced Oxidizing Conditions

“…27–29 As the production of H 2 is identical at the same current and the adsorption of H 2 on Pd surface is strong, 27,28 the concentration of adsorbed H on Pd surface can be assumed to be constant. Therefore, L–H model is expressed as $$-\frac{dc}{dt}=kS=k\frac{K_{A}c}{1+K_{A}c}$$ where c is the aqueous concentration of TCE (μM), t is the reaction time (min), k is the surface reaction rate constant (min −1 ), S is TCE coverage on Pd surface (μM), and K A is Langmuir adsorption coefficient of TCE on reactive sites (μM −1 ).…”

Catalytic hydrodechlorination of chlorophenols by Pd/Fe nanoparticles: Comparisons with other bimetallic systems, kinetics and mechanism

“…However, compared to chlorinated aliphatics, chlorinated aromatics are generally recalcitrant to ZVI dechlorination since the C-Cl bond in the aromatic ring has much higher bond strength [2].…”

Liquid-phase hydrodechlorination of chlorobenzene by molecular hydrogen: The influence of reaction medium on process efficiency

“…However, after 30 min of the reaction, the chlorobenzene HDCl over Pd/ZSM-5 catalyst had ceased, most probably because of catalyst deactivation in strong basic medium (pH > 13). NMR 27 Al spectra confirmed the presence of a partial destruction of the zeolite ZSM-5 framework as a result of dealumination.…”

“…Since the high increase in activity was observed when propan-2ol was added in amount stoichiometric toward chlorobenzene, the effect is hardly explainable by the properties of the alcohol as a solvent. Several publications have been discussing the possibility for propan-2-ol to be involved in the HDCl reaction as a source of hydrogen when the necessary hydrogen species form directly on the catalyst as a result of dehydrogenation of the secondary alcohol [8,9,[25][26][27]. In this case, the HDCl process was accompanied by production of acetone [8,9,26].…”