| Title |
Metanolio ir metilacetato garų desorbcija nuo katalizatoriaus CuO/NaX paviršiaus |
| Another Title |
Methanol and methyl acetate vapour desorption from the surface of CuO/NaX catalyst. |
| Authors |
Urbutis, A ; Kitrys, S |
| Full Text |
|
| Is Part of |
Cheminė technologija.. Kaunas : Technologija. 2010, Nr. 2, p. 44-48.. ISSN 1392-1231. eISSN 2029-719X |
| Abstract [eng] |
Kinetic parameters for the process of methanol and methyl acetate vapour desorption from the surface of adsorbent– catalyst CuO / NaX were determined. Two processes – desorption and catalytic reaction – are known to take place simultaneously on the surface of adsorbent–catalyst during the catalytic oxidation of volatile organic compounds. Adsorption capacities for the load are 151 mg/g of methanol and 186 mg/g of methyl acetate. Adsorption equilibrium is reached within 60–70 minutes. During one hour of desorption process in the temperature range 30–200 °C, not all methanol and methyl acetate leave the surface of the adsorbent–catalyst. The process is influenced by a slow diffusion of adsorbates from the internal surface. The diameter of the majority of pores is the adsorbent–catalyst CuO / NaX range within 2.0 and 2.3 nm, and specific surface area SBET = 540.8 m2/g. The highest apparent desorption rate coefficient is 0.147 min–1 for methanol and 0.168 min–1 for methyl acetate in isothermal conditions (200 °C). The apparent level of desorption on the average is equal to 0.93 for methanol and 0.82 for methyl acetate. |
| Published |
Kaunas : Technologija |
| Type |
Journal article |
| Language |
Lithuanian |
| Publication date |
2010 |
| CC license |
|
