Qingbo Yu
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View article: Understanding of the oxygen uncoupling characteristics of Cu Fe composite oxygen carriers for chemical-looping gasification
Understanding of the oxygen uncoupling characteristics of Cu Fe composite oxygen carriers for chemical-looping gasification Open
A Cu–Fe oxygen carrier (OC) with oxygen uncoupling capability is proposed to be applied in chemical-looping gasification with oxygen uncoupling (CLGOU) technology to increase the gasification rate. Density functional theory analysis shows …
View article: Thermodynamic and kinetic characteristics of a Cu-Mn composite oxygen carrier for low-temperature chemical-looping air separation
Thermodynamic and kinetic characteristics of a Cu-Mn composite oxygen carrier for low-temperature chemical-looping air separation Open
The further development of the chemical-looping air separation (CLAS) technology is hindered by the required high redox temperature. Improving the thermodynamic properties of oxides by elemental composition is an effective way to decrease …
View article: Improvement of the Oxygen Uncoupling Properties of Copper-Based Composite Oxygen Carriers for Chemical Looping Air Separation
Improvement of the Oxygen Uncoupling Properties of Copper-Based Composite Oxygen Carriers for Chemical Looping Air Separation Open
To increase the oxygen concentration in the product gas of a chemical looping air separation (CLAS) system, it is important to reduce the oxygen uncoupling temperature of the oxygen carrier (OC). In this paper, it is investigated whether a…
View article: Reduction Kinetics of YBaCo<sub>4</sub>O<sub>7+δ</sub> Oxygen Carrier for Chemical Looping Air Separation
Reduction Kinetics of YBaCo<sub>4</sub>O<sub>7+δ</sub> Oxygen Carrier for Chemical Looping Air Separation Open
The kinetics of YBaCo4O7+δ and Y0.5Dy0.5BaCo4O7+δ oxygen carriers is determined using the experimental data obtained by fixed-bed apparatus. The results show that rate of oxygen release increases with the increase of reaction temperature. …
View article: Thermodynamics of Hydrogen Production from Steam Reforming of Tar Model Compound with Blast Furnace Slag
Thermodynamics of Hydrogen Production from Steam Reforming of Tar Model Compound with Blast Furnace Slag Open
A novel method combining steam reforming of tar for hydrogen production and recovery waste heat of BF (blast furnace) slag was proposed. The thermodynamic characterizations of steam reforming of tar model compound with BF slag were obtaine…
View article: Combining theory and experiment analysis in molten BFS waste heat recovery integrated with coal gasification
Combining theory and experiment analysis in molten BFS waste heat recovery integrated with coal gasification Open
A novel method that a heat recovery system from blast furnace slag integrated with coal gasification reaction to generate syngas was proposed. The motion characteristic and critical velocity of the coal particles in the molten slag were es…
View article: Oxidation kinetics of YBaCo <sub>4</sub> O <sub> 7+ <i>δ</i> </sub> and substituted oxygen carriers
Oxidation kinetics of YBaCo <sub>4</sub> O <sub> 7+ <i>δ</i> </sub> and substituted oxygen carriers Open
In this paper, the relaxation kinetics of the oxidation process of the YBaCo 4 O 7+ δ , Y 0.95 Ti 0.05 BaCo 4 O 7+ δ and Y 0.5 Dy 0.5 BaCo 4 O 7+ δ oxygen carriers is studied with isothermal reaction data. XRD analysis for fresh samples sh…
View article: Sm-doped manganese-based Zr–Fe polymeric pillared interlayered montmorillonite for low temperature selective catalytic reduction of NO<sub>x</sub> by NH<sub>3</sub> in metallurgical sintering flue gas
Sm-doped manganese-based Zr–Fe polymeric pillared interlayered montmorillonite for low temperature selective catalytic reduction of NO<sub>x</sub> by NH<sub>3</sub> in metallurgical sintering flue gas Open
Trace amount of Sm-doped Mn-based Zr–Fe polymeric pillared interlayered montmorillonite promotes low temperature catalytic activity in excess oxygen.
View article: Experimental Investigation of the Reactivity of the Copper-based Oxygen Carrier Used in Chemical Looping Air Separation
Experimental Investigation of the Reactivity of the Copper-based Oxygen Carrier Used in Chemical Looping Air Separation Open
Chemical looping air separation is a novel oxygen production technology based on the reduction and oxidation cycle of the oxygen carrier. In this work, reactivity tests of the reduction and oxidation reactions with CuO supported on SiO2, T…
View article: Effects of CaO on Reduction of Copper Slag by Biomass Based on Ion and Molecule Coexistence Theory and Thermogravimetric Experiments
Effects of CaO on Reduction of Copper Slag by Biomass Based on Ion and Molecule Coexistence Theory and Thermogravimetric Experiments Open
Based on the ion and molecule coexistence theory, the calculation model of action concentration for system of CaO–FeO–Fe2O3–SiO2 copper slags was built up in this article. Effects of CaO, reaction temperature and reduction ratio on reducti…