Temperature profile in catalyst bed during methane autothermal reforming: Experiments and modelling

Salemme, Lucia
Scognamiglio, Diego
Simeone, Marino
Russo, Lucia
Maffettone, Pierluca
Crescitelli, Silvestro
Allouis, Christophe Gerard
Volpicelli, Gennaro
Product composition and temperature profiles, as measured by IR thermography, for an autothermal reactor with Ni/Al2O3 catalyst were studied. The water addition reduced catalyst temperature, increased H2 and CO2 and decreased CO concentration. As for the case of temperature profiles, model prediction was in good agreement with the experimental data. This is an abstract of a paper presented at the AIChE Annual Meeting (Salt Lake, UT 11/4-9/2007).


TOKATLI, K; OZILGEN, M (Wiley, 1993-01-01)
Permeation of CO2 and O2 through a low density polyethylene film was studied with CO2-N2 MiXtures in the temperature range 263-283 K, and with CO2-O2-N2 mixtures in the range 257-313 K. The temperature dependence of the permeabilities of these gases agreed with the Arrhenius expression. The activation energy for carbon dioxide diffusion was between 3.53 x 10(4) and 3.74 x 10(4) J/mol; the activation energy for oxygen diffusion was 3.13 x 10(4) J/mol. The pre-exponential constant for oxygen was higher than t...
Temperature dependence of the piezoelectric resonance frequency in relation to the anomalous strain near the incommensurate phase of quartz
Ates, S.; Yurtseven, Hasan Hamit (2021-01-01)
The temperature dependence of the piezoelectric resonance frequency is analyzed by the power-law formula in the vicinity of the critical temperature of the incommensurate (INC) phase in quartz using the experimental data from the literature. By considering the piezoelectric resonance frequency as an order parameter of the INC phase, correlation between the piezoelectric resonance frequency and the strain is constructed, which both decrease linearly with increasing temperature toward T-c in quartz. Our resul...
Thermal behavior and kinetics of crude oils at low heating rates by differential scanning calorimeter
Kök, Mustafa Verşan (2012-04-01)
The objective of this research was to investigate thermal behavior and kinetics of different origin crude oils in limestone matrix by differential scanning calorimeter (DSC) at low heating rates. In DSC experiments, three distinct reaction regions were identified in all of the crude oil + limestone mixtures known as low temperature oxidation (LTO), fuel deposition (FD) and high temperature oxidation (HTO) respectively. Kinetic analysis of the crude oil samples was determined by different models known as AST...
Heating rate effect on the DSC kinetics of oil shales
Kök, Mustafa Verşan (2007-12-01)
This research was aimed to investigate the combustion and kinetics of oil shale samples (Mengen and Himmetoglu) by differential scanning calorimetry (DSC). Experiments were performed in air atmosphere up to 600 degrees C at five different heating rates. The DSC curves clearly demonstrate distinct reaction regions in the oil shale samples studied. Reaction intervals, peak and burn-out temperatures of the oil shale samples are also determined. Arrhenius kinetic method was used to analyze the DSC data and it w...
Temperature profile in a reverse flow reactor for catalytic partial oxidation of methane by fast IR imaging
Simeone, M.; Salemme, L.; Allouis, Christophe Gerard; Volpicelli, G. (2008-10-01)
Catalytic partial oxidation of methane with air was investigated in a reverse flow reactor with commercial Rh/A1(2)O(3) catalyst in pellets. Temperature profile of the catalyst bed was measured by fast IR thermography and product composition was measured with a continuous gas analyzer. The effect of internal heat recovery on reactor performance and catalyst thermal stress is presented and compared with steady state operation. Feed direction switching time, total flow rate, and methane to oxygen ratio were i...
Citation Formats
L. Salemme et al., “Temperature profile in catalyst bed during methane autothermal reforming: Experiments and modelling,” presented at the 2007 AIChE Annual Meeting, Salt Lake City, UT, Amerika Birleşik Devletleri, 2007, Accessed: 00, 2021. [Online]. Available: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=58049087928&origin=inward.