Catalytic Control of Air Pollution. Mobile and Stationary by Ronald G. Silver, John E. Sawyer, Jerry C. Summers

By Ronald G. Silver, John E. Sawyer, Jerry C. Summers

content material: Catalyst applied sciences to satisfy destiny emission requisites for light-duty autos / Jerry C. Summers and Ronald G. Silver --
Methane oxidation over noble steel catalysts as concerning controlling typical gasoline motor vehicle exhaust emissions / S.H. Oh, P.J. Mitchell, and R.M. Siewart --
car catalyst ideas for destiny emission structures / W. Burton Williamson, Jerry C. Summers, and John A. Scaparo --
Experimental comparability between hydrocarbons and oxygenated compounds for his or her removal by means of three-way automobile catalysts / J.M. Bart, A. Pentenero, and M.F. Prigent --
Steady-state isotopic brief kinetic research research of CO-O₂ and CO-NO reactions over a advertisement car catalyst / Rachid Oukaci ... [et al.] --
Particle measurement and aid results in NO adsorption on version Pt and Rh catalysts / G. Zafiris, S.I. Roberts, and R.J. Gorte --
impression of Ce on functionality and physicochemical houses of Pt-containing automobile emission keep watch over catalysts / J.G. Numan, Ronald G. Silver, and S.A. Bradley --
The 1990 fresh Air Act and catalytic emission keep watch over expertise for desk bound assets / Jerry C. Summers, John E. Sawyer, and A.C. Frost --
Selective catalytic aid of nitric oxide with ammonia over supported and unsupported vanadia catalysts / U.S. Ozkan, Y. Cai, and M.W. Kumthekar --
Catalytic oxidation of hint concentrations of trichloroethylene over 1.5 % platinum on [gamma]-alumnina / Yi Wang, Henry Shaw, and Robert J. Farrauto --
Catalytic oxidation of trichloroethylene over PdO catalyst on [gamma]-Al₂O₃ / Tai-Chiang Yu, Henry Shaw, and Robert J. Farrauto --
Thermal decomposition of halogenated hydrocarbons on a Cu(111) floor / Jong-Liang Lin and Brian E. Bent.

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Extra resources for Catalytic Control of Air Pollution. Mobile and Stationary Sources

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Several of the previous tests were performed again with this aged catalyst. At stoichiometry an increase in the light-off temperatures between 15 C (for benzene) and 100 C (for propane) was noticed. ch004 e New catalyst Aged catalyst CJ^ > Q H > <^Η « C H » C H » Q f t > C H > C H > <^Η » C H » 14 6 14 4 3 6 6 6 4 3 3 8 8 Concerning hydrocarbon conversion as a function of the gas mixture oxygen content and, in the absence of S0 , the following evolutions due to catalyst aging were observed: 2 • For propane, the conversion rate decrease was the most pronounced below stoichiometry where the conversion spike observed (cf.

Reproduced with permission from ref. 11. ) β 100 τ- 40 €0 Pd L o a d i n g 80 100 120 (g/cf) Figure 5. Effect of Pd loading on stoichiometric conversions at 450 * C of Pdonly catalysts after engine aging. (Reproduced with permission from ref. 7. ; ACS Symposium Series; American Chemical Society: Washington, DC, 1992. 34 CATALYTIC CONTROL OF AIR POLLUTION conversion of both catalysts falls off sharply upon exposure to increasing lead levels. In the poisoning of Pt/Rh catalysts, the NOx conversion was significantly deteriorated under strongly rich conditions, particularly the conversion of NOx to NH (27,33).

Skowron, M . Thomason, D. Whisenhunt, J. H . White. Literature Cited 1. ; SAE (Society of Automotive Engineers) 1990, Paper 900613. 2. 36. 3. ; Platinum Metals Rev. 1989,33,194. 4. S. Environmental Protection Agency, "Mobile Source Emission Standards Summary", March 20, 1985. 5. ; SAE 1987, Paper 872164. 6. ; Ind. Eng. Chem. Prod. Res. Dev. 1986, 25, 202. 7. ; SAE 1988, Paper 880281. 8. ; SAE 1989, Paper 890794. 9. S. Patent 4,782,038; November 1, 1988. 10. ; SAE 1989, Paper 892094. 11. ; SAE 1990, Paper 900495.

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