Calorimetric Evaluation of Thermal Stability of Organic Liquid Hydrogen Storage Materials and Metal Oxide Additives

Abstract

The effects of two different metal oxide catalysts, SnO and Li2O, on the dehydrogenation temperature of Carbazole and N-Ethylcarbazole (NE), respectively, were investigated by the Thermogravimetric analyzer and Differential Scanning Calorimetry. Thermogravimetric experiments were performed with 10wt% SnO and Li2O added to Carbazole and N-Ethylcarbazole, respectively, and compared to pure Carbazole and N-Ethylcarbazole. The results showed that the dehydrogenation temperature of N-Ethylcarbazole was lower than that of Carbazole, and the dehydrogenation temperature of N-Ethylcarbazole +SnO was the lowest, and SnO is an ideal dehydrogenation catalyst for N-Ethylcarbazole. Experiments using Differential Scanning Calorimetry and a Thermogravimetric analyzer showed that with the addition of catalyst, the activation energy of the mixture was more significant and stable, and the thermal hazard was reduced, whereas the relative dehydrogenation temperature was increased. This study provides important information for improving the design of dehydrogenation catalysts for organic liquid hydrogen storage processes.

Additional Treatment of Nitrogen and Phosphorus Using Natural Materials in Small-Scale Domestic Wastewater Treatment Unit

“…The wastewater samples were taken to the laboratory for analysis. In the laboratory, the samples were allowed to warm up to room temperature, then their pH, chemical oxygen demand (COD), biochemical oxygen demand (BOD 7 ), suspended solids concentration (TSS), nitrate nitrogen (NO 3 -N), nitrite nitrogen (NO 2 -N), ammonium nitrogen (NH 4 -N), and ortho-phosphate phosphorus (PO 4 the average values of the results were presented. The effectiveness of removing pollutants (PO 4 -P, NH 4 -N, and NO 3 -N) from wastewater was calculated according to Formula (1):…”

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Thermal Stability Evaluation of T152 Emulsifier on the Modification Influence of Fireworks Propellant

“…The KAS (Kissinger-Akahira-Sunose) method is similar to the Kissinger method [29], but the results are more comprehensive. As shown in Equation ( 6), the KAS equation is [30]:…”

Particle Counter Design Upgrade for Euro 7

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