Characterization and optimization of Ce0.6Zr0.4−x Mn x O2 (x ≤ 0.4)

Priya, N. Shanmuga; Somayaji, Chandramohan; Kanagaraj, S.

doi:10.1007/s11051-014-2661-2

Cited by 3 publications

(1 citation statement)

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“…In this work, we study the effect of a ternary nano-catalyst, Ce 0.6 Zr 0.2 Al 0.26 O 2 (CZA2) [32] on IDI engine performance indicators and emissions from diesel only (D100) and waste cooking oil and tallow origin biodiesel-diesel blends (B10, B20, B30). Loss of oxygen from CZA2 and reduction of Ce 4+ to Ce 3+ increases its thermal expansion coefficient by 11.9% in the temperature region of 600-1000 o C compared to that of 200-600 o C [33].…”

Section: Introductionmentioning

confidence: 99%

Performance and emissions study of diesel and waste biodiesel blends with nanosized CZA2 of high oxygen storage capacity

Pimenidou

Shanmugapriya²,

Shah

2019

Fuel

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In this work, the effect of the nanosized CZA2 (cerium-zirconium-aluminium) on the performance and emissions in a two-cylinder indirect injection (IDI) diesel engine, was studied. CZA2 was dispersed in diesel (D100) and waste cooking oil and tallow origin biodiesel-diesel blends (B10, B20, B30) and tested at different engine loads and constant speed. The nanocatalyst (CZA2) increased the brake specific fuel consumption (BSFC) and decreased the brake thermal efficiency (BTE, %) of all tested fuels, at all loads, except B20 at the lowest load. CZA2 reduced nitrogen oxides (NOx) from D100 at low and high engine loads, as well as carbon monoxide (CO) and unburned hydrocarbons (HC) at medium and high tested loads. The dispersion of CZA2 promoted the combustion of the biodiesel blends by almost eliminating HC while reducing NOx and CO emissions at various loads. Thermogravimetric analysis (TGA) coupled with Attenuated Total Reflectance-Fourier Transform Infrared (ATR-FTIR) spectroscopy revealed that the addition of CZA2 in diesel and biodiesel under pyrolysis and oxidation conditions resulted in the presence of saturated species like ketones and final oxidation products such as CO 2 , supporting their improved combustion and emissions' reduction in the engine tests.

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Section: Introductionmentioning

confidence: 99%