Liquid-phase chloroform hydrodechlorination catalyzed by Pd/TiO2–Na

Catalytic hydrodechlorination of trichloroethylene in a novel NaOH/2-propanol/methanol/water system on ceria-supported Pd and Rh catalysts

“…Due to this risk, the incineration of chlorinated residues is prohibited in Colombia, causing to indefinite storage of the residues or transportation to other countries (Cobo et al, 2011;Ardila et al, 2015). Catalytic hydrodechlorination (HDC) is a promising technology to degrade chlorinated compounds like chlorobenzene (Keane and Murzin, 2001;Gryglewicz and Piechocki, 2011), chloroform (Ardila et al, 2015), chlorinated aromatics (Yuan and Keane, 2004;Kopinke et al, 2010;Molina et al, 2014) and dioxins (Ukiso and Miyadera, 2004;Cobo et al, 2009;Wu et al, 2012). HDC can be effective to degrade TCE to ethane and/or ethylene Barrab es et al, 2009b;Meshesha et al, 2013), which are low-toxicity hydrocarbons with less environmental impact.…”

“…This compound is widely used in the electronics industry as a metal part degreaser; such procedures are carried out at the boiling temperature of the solvent, leaving a chlorinated, dark liquid residue at the end of the process (Cobo et al, 2011;Ardila et al, 2015). This compound is highly toxic to humans and the environment, due to its high resistance to natural degradation, easy accumulation in underground waters (Li et al, 2012), and carcinogenic character (Pretzer et al, 2013).…”

Influence of preparation procedure on catalytic activity of PdBEA zeolites in aqueous phase hydrodechlorination of 1,1,2-trichloroethene

“…Moreover, the appropriate support has also a significant influence on catalytic activity and stability of Pd catalysts [17]. The most popular Pd supports are activated carbons, silica, titania and alumina [15][16][17][18][19]21]. Recently, the significant surge of interest in zeolite materials has been observed due to their specific properties (cation exchange, shape selectivity and acidity) [20,22,23].…”