Acid-modified clinoptilolite as a support for palladium–copper complexes catalyzing carbon monoxide oxidation with air oxygen

Table 7 Kinetic and stoichiometric parameters of the reaction of CO oxidation with air oxygen in the presence of K₂PdCl₄–Cu(NO₃)₂–KBr–H₂O/3H-CLI samples at different contents of adsorbed water (thermodynamic activities of water)

m \( _{{{\text{H}}_{2} {\text{O}}}} \), mmol g⁻¹	Σm \( _{{{\text{H}}_{2} {\text{O}}}} \), mmol g⁻¹	\( a_{{{\text{H}}_{2} {\text{O}}}} \)	W × 10⁹, mol/(g × s)		\( {\text{C}}_{\text{CO}}^{\text{f}} \), mg m⁻³	η_st, %	Q_exp × 10⁴, moles of CO	n
m \( _{{{\text{H}}_{2} {\text{O}}}} \), mmol g⁻¹	Σm \( _{{{\text{H}}_{2} {\text{O}}}} \), mmol g⁻¹	\( a_{{{\text{H}}_{2} {\text{O}}}} \)	W_in	W_st	\( {\text{C}}_{\text{CO}}^{\text{f}} \), mg m⁻³	η_st, %	Q_exp × 10⁴, moles of CO	n
0	3.1	0.26	16.7	17.4	10	97	14.9	5.5
1.66	4.77	0.79	16.5	17.3	12	96	14.8	5.4
2.77	5.87	0.87	14.5	17.1	15	95	14.6	5.4
3.32	6.42	0.93	8.8	16.1	32	89	13.4	4.9
4.44	7.54	1.0	2.7	15.6	40	87	12.3	4.5

C_Pd(II) = 2.72 × 10⁻⁵, C_{Cu (II)} = 5.9 × 10⁻⁵, C_KBr = 1.02 × 10⁻⁴ mol g⁻¹, \( {\text{C}}_{\text{CO}}^{\text{in}} \) = 300 mg m⁻³, U = 4.2 cm s⁻¹, d_g = 0.75 mm
At \( a_{{{\text{H}}_{2} {\text{O}}}} \) close to 1.00, the catalyst loses its protective properties

ISSN: 2661-801X