Methane emissions from rice grown within Temperature Gradient Greenhouse Tunnels under doubled CO2 concentrations were 10±45 times less than emissions from control plants grown under ambient CO2. For two cultivars of rice (cvs. Lemont and IR-72), methane emissions increased with a temperature increase of 2°, from outdoor ambient temperatures to the ®rst cell of the ambient CO2 tunnel (ambient t...

Dry reforming of methane was investigated over Ni-Zr catalysts modified by Aluminum and Manganese. The were characterized XRD, CO2-TPD, XPS, TGA, Raman. Among all prepared catalysts, the 5Al-5 Mn (5 wt% Al 5 Mn) catalyst showed highest CH4 CO2 conversion at 700 °C DRM with low carbon deposition. CO2-TPD results exhibited that had amounts both total basic sites medium-strength sites, which could...

We report iron-containing mixed-oxide nanocomposites as highly effective redox materials for thermochemical CO2 splitting and methane partial oxidation in a cyclic redox scheme, where methane was introduced as an oxygen "sink" to promote the reduction of the redox materials followed by reoxidation through CO2 splitting. Up to 96% syngas selectivity in the methane partial oxidation step and clos...

Abstract: Reduction of the Titanium dioxide, TiO2, by methane was investigated in this work. The thermodynamic of reaction was examined and found favorable. The reaction of titanium dioxide with methane was carried out in the temperature range 1150°C to 1450°C at atmospheric pressure with industrial high porosity pellets prepared from titanium dioxide powder. The evolved gas analyzing method wa...

The activation and catalytic performance of two representative Zr-containing intermetallic systems, namely Cu-Zr and Pd-Zr, have been comparatively studied operando using methanol steam reforming (MSR) as test reaction. Using an inverse surface science and bulk model catalyst approach, we monitored the transition of the initial metal/intermetallic compound structures into the eventual active an...

Carbon deposition is the main cause for catalyst deactivation of methane dry reforming, and researchers are committed to exploring effective systems with zero carbon in order achieve a practically long lifetime. In this work, we propose an equilibrium theory matched rates CH4 dissociation CO2 activation establish balance between elimination construct highly dispersed Ni-Ir/MgAl2O4 alloy catalys...

This work initially focuses on developing a computational fluid dynamics (CFD) model of an industrialscale steam methane reforming reactor (reforming tube) used to produce hydrogen. Subsequently, we design and evaluate three different feedback control schemes to drive the area-weighted average hydrogen mole fraction measured at the reforming tube outlet ( x̄H outlet 2 ) to a desired set-point va...

Biomass gasification and subsequent conversion of this syngas to liquid hydrocarbons using Fischer– Tropsch (F–T) synthesis is a promising source of hydrocarbon fuels. However, biomass-derived syngas is different from syngas obtained from other sources such as steam reforming of methane. Specifically the H2/CO ratio is less than 1/1 and the CO2 concentrations are somewhat higher. Here, we repor...

Integrated CO2 capture and utilisation via dry reforming of methane (ICCU-DRM) represents a promising profitable route for directly capturing converting from various sources. However, the influence realistic flue gas conditions on ICCU-DRM remains unknown challenging. Herein, we investigated presence H2O O2 in power plant integrated DRM using Ni10-CaO dual functional material (DFM). It is found...