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Information Journal Paper

Title

DEVELOPMENT OF SYNERGIC MIXED METAL OXIDES FOR THE COMBINED CATALYTIC-ABSORPTIVE REMOVAL OF NITRIC OXIDE FROM DIESEL EXHAUST

Pages

  31-41

Abstract

 The NO removal over oxide SORBENTs (K2O/Al2O3, CaO/Al2O3 and BaO/Al2O3) at a loading of up to 25 wt.% was investigated using a synthetic DIESEL EXHAUST gas containing 1,000 ppm NO, 1000 ppm iso-butane (i-C4H10), 8% O2 and N2 balance. The reactor was operated at 250oC to 450oC for the activity study. NO was effectively stored (removal efficiencies between 30-60 %) as nitrate under experimental conditions after surface oxidation to NO2; and the maximum removal efficiency decreased in the order of K2O/Al2O3 (55.4 %) > BaO/Al2O3 (39.0 %) > CaO/Al2O3 (37.0 %). K2O/Al2O3 had higher mobility; but loadings higher than 15 wt.% were detrimental to the morphological properties. Despite higher basicity, CaO/Al2O3 showed lower removal efficiency of NO compared to BaO(10)/Al2O3 due to low catalytic NO2 formation activity. Unlike K2O (10) /Al2O3, BaO (10) /Al2O3 showed increasing NO removal between 350oC and 450oC. K2O(5) BaO (5)/Al2O3 resulted in better surface area and volume leading to about 65 % of NO removal. This was attributed to synergic effects between physicochemical, catalytic and NO removal properties of the components. The high performance of K2O (5) BaO (5) /Al2O3 was successfully elucidated based on the characteristics of the SORBENT.

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    APA: Copy

    SALAMATINIA, BABAK, AHMAD ZUHAIRI, ABDULLAH, & HASHEMIZADEH, IMAN. (2013). DEVELOPMENT OF SYNERGIC MIXED METAL OXIDES FOR THE COMBINED CATALYTIC-ABSORPTIVE REMOVAL OF NITRIC OXIDE FROM DIESEL EXHAUST. IRANIAN JOURNAL OF CHEMISTRY AND CHEMICAL ENGINEERING (IJCCE), 32(1 (65)), 31-41. SID. https://sid.ir/paper/601093/en

    Vancouver: Copy

    SALAMATINIA BABAK, AHMAD ZUHAIRI ABDULLAH, HASHEMIZADEH IMAN. DEVELOPMENT OF SYNERGIC MIXED METAL OXIDES FOR THE COMBINED CATALYTIC-ABSORPTIVE REMOVAL OF NITRIC OXIDE FROM DIESEL EXHAUST. IRANIAN JOURNAL OF CHEMISTRY AND CHEMICAL ENGINEERING (IJCCE)[Internet]. 2013;32(1 (65)):31-41. Available from: https://sid.ir/paper/601093/en

    IEEE: Copy

    BABAK SALAMATINIA, ABDULLAH AHMAD ZUHAIRI, and IMAN HASHEMIZADEH, “DEVELOPMENT OF SYNERGIC MIXED METAL OXIDES FOR THE COMBINED CATALYTIC-ABSORPTIVE REMOVAL OF NITRIC OXIDE FROM DIESEL EXHAUST,” IRANIAN JOURNAL OF CHEMISTRY AND CHEMICAL ENGINEERING (IJCCE), vol. 32, no. 1 (65), pp. 31–41, 2013, [Online]. Available: https://sid.ir/paper/601093/en

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