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CO<sub>2sub> methanation and co-methanation of CO and CO<sub>2sub> over Mn-promoted Ni/Al<sub>2sub>O<sub>3sub> catalysts

Kechao Zhao,Zhenhua Li,Li Bian

Frontiers of Chemical Science and Engineering 2016, Volume 10, Issue 2,   Pages 273-280 doi: 10.1007/s11705-016-1563-5

Abstract: A series of Mn-promoted 15 wt-% Ni/Al O catalysts were prepared by an incipient wetness impregnationThe presence of Mn increased the number of CO adsorption sites and inhibited Ni particle agglomerationdue to improved Ni dispersion and weakened interactions between the nickel species and the support.Mn content was varied from 0.86% to 2.54% and the best CO conversion was achieved with the 1.71Mn-NiThe co-methanation tests on the 1.71Mn-Ni/Al O catalyst indicated that adding Mn markedly enhanced the

Keywords: Mn promotion     nickel catalysts     CO<sub>2sub> methanation     co-methanation of CO and CO<sub>2sub>    

Formation of CaCO hollow microspheres in carbonated distiller waste from Solvay soda ash plants

Frontiers of Chemical Science and Engineering   Pages 1659-1671 doi: 10.1007/s11705-022-2173-z

Abstract: For decades, distiller waste and CO<sub>2sub> were not the first choice for production of high valuedWhen 2.5 L·min–1·L–1 CO<sub>2sub> was flowed into distiller waste (pH = 11.4), spheres with 4–13 μm diameters and about 2 μm shell thickness were obtained.Firstly, the Ca(OH)<sub>2sub> in the distiller waste stimulated the nucleation of calcite with a non-templateFinally, the flow process for absorption of CO<sub>2sub> by distiller waste was designed and found

Keywords: distiller waste     CO<sub>2sub>     hollow microsphere     CaCO<sub>3sub>     Ca(OH)<sub>2sub>     inside−out    

Stability of Ni/SiO

Bettina Stolze,Juliane Titus,Stephan A. Schunk,Andrian Milanov,Ekkehard Schwab,Roger Gläser

Frontiers of Chemical Science and Engineering 2016, Volume 10, Issue 2,   Pages 281-293 doi: 10.1007/s11705-016-1568-0

Abstract: Ni/SiO -ZrO catalysts with Ni loadings of 1 to 13 wt-% were prepared, characterized by elemental analysisThe catalyst with 5 wt-% Ni loading in its fully reduced state is stable over 15?The Ni loading of 5 wt-% on SiO -ZrO was shown to provide an optimal balance between activity and coking

Keywords: Ni/SiO<sub>2sub>-ZrO<sub>2sub>     synthesis gas     dry reforming     coking     steaming    

An investigation of the CHOH and CO selectivity of CO hydrogenation over Cu–Ce–Zr catalysts

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 6,   Pages 950-962 doi: 10.1007/s11705-022-2162-2

Abstract: 2sub> to CO/CH<sub>3sub>OH products./mml:mn> = 5.4%–15.6%) and CH<sub>3sub>OHfurther hydrogenation of intermediate species to CH<sub>3sub>OH and improving the hydrogenation rateHence, the Cu–Ce–Zr catalyst with 8 wt% Ce loading favors CH<sub>3sub>OH selectivity and CO<sub>22sub> hydrogenation to CH<sub>3sub>OH.

Keywords: CO<sub>2sub> hydrogenation     Cu–Ce–Zr     hydroxyls     CO/CH<sub>3sub>OH selectivity    

Catalytic hydrolysis of gaseous HCN over Cu–Ni/γ-Al

Linxia Yan, Senlin Tian, Jian Zhou, Xin Yuan

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 6, doi: 10.1007/s11783-016-0872-8

Abstract: The Cu–Ni/γ-Al O catalyst was prepared to study HCN hydrolysis ?decompose efficiently hydrogen cyanide (HCN) in exhaust gas, g-Al O -supported bimetallic-based Cu–Nivolume ratio, reaction temperature, and the presence of CO or O on the HCN removal efficiency on the Cu–Ni

Keywords: Hydrogen cyanide     Cu–Ni/g-Al<sub>2sub>O<sub>3sub>     Catalytic hydrolysis    

Corrosion behavior of Fe–Cr–Ni based alloys exposed to molten MgCl<sub>2sub>–KCl–NaCl salt with over-added

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1608-1619 doi: 10.1007/s11705-023-2349-1

Abstract: MgCl<sub>2sub>–NaCl–KCl salts mixture shows great potential as a high-temperature (> 700 °C) thermalAdding Mg into molten MgCl<sub>2sub>–NaCl–KCl salt as a corrosion inhibitor is one of the most effectiveand cost-effective methods to mitigate the molten salt corrosion of commercial Fe–Cr–Ni alloys.to form MgNi<sub>2sub>/Mg<sub>2sub>Ni compounds.using Mg as a corrosion inhibitor for MgCl<sub>2sub>–NaCl–KCl or other chlorides for high temperature

Keywords: concentrated solar power (CSP)     Mg corrosion inhibitor     Mg–Ni intermetallic     salt purification     thermal    

Fe - Ni - Co - Al<sub>2sub>O<sub>3sub> Cermets Inert Anode for Aluminum Electrolysis

Qiu Zhuxian,Shi Zhongning,Xu Junli

Strategic Study of CAE 2004, Volume 6, Issue 8,   Pages 35-39

Abstract: The cell was built with a graphite cathode of 120 mm×40 mm×20 mm and a Fe - Ni - Co -Al<sub>2sub>O<sub>3sub> cermet inert anode of 120 mm×80 mm×15 mm.The purity of aluminum metal produced was 98%〜99%, the impurities were mainly Fe, Ni and Co.The anode gas consisted of 98%〜99% O<sub>2sub> which was analyzed with an Orsat apparatus.>2sub>O<sub>3sub> in the bath and the anode used was inert.

Keywords: aluminum electrolysis     inert anode     back EMF value    

Efficient degradation of orange II by ZnMn

Qingzhuo Ni, Hao Cheng, Jianfeng Ma, Yong Kong, Sridhar Komarneni

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 6,   Pages 956-966 doi: 10.1007/s11705-019-1907-z

Abstract: A ZnMn O catalyst has been synthesized via a sucrose-aided combustion method and characterized by various analytical techniques. It is composed of numerous nanoparticles (15–110 nm) assembled into a porous structure with a specific surface area (SSA) of 19.1 m ·g . Its catalytic activity has been investigated for the degradation of orange II dye using three different systems, i.e., the photocatalysis system with visible light, the chemocatalysis system with bisulfite, and the photo-chemical catalysis system with both visible light and bisulfite. The last system exhibits the maximum degradation efficiency of 90%, much higher than the photocatalysis system (15%) and the chemocatalysis system (67%). The recycling experiments indicate that the ZnMn O catalyst has high stability and reusability and is thus a green and eximious catalyst. Furthermore, the potential degradation mechanisms applicable to the three systems are discussed with relevant theoretical analysis and scavenging experiments for radicals. The active species such as Mn(III), O , h , e , SO and HO are proposed to be responsible for the excellent degradation results in the photo-chemical catalysis system with the ZnMn O catalyst.

Keywords: ZnMn<sub>2sub>O<sub>4sub>     photo-chemical catalysis     bisulfite     dye degradation    

Ni-Co bimetallic catalyst for CH

Xiaohong LI, Jun AI, Wenying LI, Dongxiong LI

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 4,   Pages 476-480 doi: 10.1007/s11705-010-0512-y

Abstract: A co-precipitation method was employed to prepare Ni/Al O -ZrO , Co/Al O -ZrO and Ni-Co/Al O -ZrO catalystsNi-Co/Al O -ZrO bimetallic catalyst has good performance in the reduction of active components Ni, Comono-metallic catalyst, bimetallic catalyst could provide more active sites and CO adsorption sites (C+ CO = 2COAccording to the CH -CO -TPSR, there were 80.9% and 81.5% higher CH and CO conversion over Ni-Co/AlThe high activity and excellent anti-coking of the Ni-Co/Al O -ZrO catalyst were closely related to

Keywords: Ni-Co bimetallic catalyst     composite support     CH<sub>4sub> reforming with CO<sub>2sub>    

Laboratory study on high-temperature adsorption of HCl by dry-injection of Ca(OH)

Junjun TAN,Guohua YANG,Jingqiao MAO,Huichao DAI

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 6,   Pages 863-870 doi: 10.1007/s11783-013-0618-9

Abstract: / (Cl)molar ratios of 1.0–5.0 using the silver nitrate titration method by dry adsorbent powders Ca(OH

Keywords: acid gas HCl     Ca(OH)<sub>2sub>     dry adsorption     high temperature     dual-layer granular bed filter    

Bamboo-like -doped carbon nanotubes encapsulating M(Co, Fe)-Ni alloy for electrochemical production of

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 4,   Pages 498-510 doi: 10.1007/s11705-021-2082-6

Abstract: The electrochemical conversion of CO<sub>2sub>-H<sub>2sub>O into CO-H<sub>2sub> using renewableThe M<sub>xsub>Ni-NCNT samples exhibited bamboo-like nanotubular structures with a large specificon M<sub>xsub>Ni-NCNT.biofuels by syngas fermentation, could be realized on Co<sub>1sub>Ni-NCNT and Co<sub>2sub>Ni-NCNT>2sub> ratio from electrochemical CO<sub>2sub> reduction.

Keywords: electrochemical reduction of CO<sub>2sub>     syngas     N-doped carbon nanotubes     encapsulated alloynanoparticles     CO/H<sub>2sub> ratio    

Generation of enhanced stability of SnO/In(OH)/InP for photocatalytic water splitting by SnO protection

Frontiers in Energy 2021, Volume 15, Issue 3,   Pages 710-720 doi: 10.1007/s11708-021-0764-x

Abstract: activity of the InP-based catalyst are effectively enhanced by applying an anti-corrosion SnO layer and In(OH)<sub>3sub> transition layer, which reduces the crystal mismatch between SnO and InP and increasesThe obtained Pt/SnO/In(OH)<sub>3sub>/InP exhibits a hydrogen production rate of 144.42 µmol/g in 3illumination in multi-cycle tests without remarkable decay, 123 times higher than that of naked In(OH)<sub>3sub>/InP without any electron donor under visible irradiation.

Keywords: SnO/In(OH)<sub>3sub>/InP photocatalyst     enhanced activity and stability for water splitting     corrosion    

Design and analysis of dual fuel methanol-power poly-generation

Minghua WANG , Zheng LI , Weidou NI ,

Frontiers in Energy 2009, Volume 3, Issue 3,   Pages 341-347 doi: 10.1007/s11708-009-0023-z

Abstract: A dual fuel head poly-generation flowsheet was designed based on coal gas and coke oven gas. To help clearly understand the system performance, a 1.2×10−3.2×10kg methanol and 274―496MW power poly-generation system was simulated by using the commercially available software ASPEN Plus and GT Pro. The technology scheme, the operating parameters, and the efficiency of the system were also analyzed and evaluated, which will be used for building industrial devices.

Keywords: dual fuel     methanol-power poly-generation     CO<sub>2sub> and CH<sub>4sub> reforming     splitting ratio    

Metal-Free Hexagonal Perovskite High-Energetic Materials with NH<sub>3sub>OH+/NH<sub>2sub>NH<sub>3sub>+ as B-site Cations Article

Yu Shang, Zhi-Hong Yu, Rui-Kang Huang, Shao-Li Chen, De-Xuan Liu, Xiao-Xian Chen, Wei-Xiong Zhang, Xiao-Ming Chen

Engineering 2020, Volume 6, Issue 9,   Pages 1013-1018 doi: 10.1016/j.eng.2020.05.018

Abstract: >2sub>dabco)B(ClO<sub>4sub>)<sub>3sub> (H<sub>2sub>dabco2+ = 1,4-diazabicyclo[2.2.2]octane-1,4-diium), were fabricated via an easily scaled-up synthetic route using NH<sub>3sub>OH+ and NH<sub>2sub>NH<sub>3sub>+ as B-site cations, respectively.Compared with their NH<sub>4sub>+ analog ((H<sub>2sub>dabco)(NH<sub>4sub>)(ClO<sub>4sub>)<sub>3sub>; DAP-4), which has a cubic perovskite structure, DAP-6 and DAP-7 have higher crystal

Keywords: Energetic materials     Single explosive     Solid propellant     Metal-free     Hexagonal perovskite    

Synergistic utilization of coal and other energy – Key to low carbon economy

Weidou NI, Zhen CHEN

Frontiers in Energy 2011, Volume 5, Issue 1,   Pages 1-19 doi: 10.1007/s11708-010-0136-4

Abstract: In China, coal is a dominant component of energy mix, and it is expected to remain as such over the next 30 to 40 years. Coal is expected to be used even more in power generation. The direct combustion of coal already has been causing severe pollution and ecological degradation, and it is quite difficult to address the need to reduce greenhouse gas (GHG) given the direct combustion of coal. Therefore, the polygeneration system based on coal gasification, which is one of the major examples of synergistic utilization of coal, is proposed. It is a comprehensive solution to meet the energy challenges China is facing. Furthermore, the synergy of fossil fuels (especially coal) with renewable energy, the synergy of different kinds of energy for energy storage, the synergy of centralized and distributed supply of different kinds of energy, and the synergy of different kinds of energy in smart energy grid (power, gas, heat, and water) are the keys to making China a low-carbon economy. Carbon dioxide (CO ) mitigation in China should begin from the coal-chemical industry given their accumulated relevant experiences. The mitigation process should gradually be transformed into the “IGCC+ polygeneration+ CCUS”. The objectives of this paper are to describe the synergistic utilization of coal, and to analyze the synergy of coal with other energy resources, and to propose the scientific and technological problems to achieve these synergies.

Keywords: synergy     clean and efficient utilization of coal     coal-based polygenration     CO<sub>2sub> mitigation     energy    

Title Author Date Type Operation

CO<sub>2sub> methanation and co-methanation of CO and CO<sub>2sub> over Mn-promoted Ni/Al<sub>2sub>O<sub>3sub> catalysts

Kechao Zhao,Zhenhua Li,Li Bian

Journal Article

Formation of CaCO hollow microspheres in carbonated distiller waste from Solvay soda ash plants

Journal Article

Stability of Ni/SiO

Bettina Stolze,Juliane Titus,Stephan A. Schunk,Andrian Milanov,Ekkehard Schwab,Roger Gläser

Journal Article

An investigation of the CHOH and CO selectivity of CO hydrogenation over Cu–Ce–Zr catalysts

Journal Article

Catalytic hydrolysis of gaseous HCN over Cu–Ni/γ-Al

Linxia Yan, Senlin Tian, Jian Zhou, Xin Yuan

Journal Article

Corrosion behavior of Fe–Cr–Ni based alloys exposed to molten MgCl<sub>2sub>–KCl–NaCl salt with over-added

Journal Article

Fe - Ni - Co - Al<sub>2sub>O<sub>3sub> Cermets Inert Anode for Aluminum Electrolysis

Qiu Zhuxian,Shi Zhongning,Xu Junli

Journal Article

Efficient degradation of orange II by ZnMn

Qingzhuo Ni, Hao Cheng, Jianfeng Ma, Yong Kong, Sridhar Komarneni

Journal Article

Ni-Co bimetallic catalyst for CH

Xiaohong LI, Jun AI, Wenying LI, Dongxiong LI

Journal Article

Laboratory study on high-temperature adsorption of HCl by dry-injection of Ca(OH)

Junjun TAN,Guohua YANG,Jingqiao MAO,Huichao DAI

Journal Article

Bamboo-like -doped carbon nanotubes encapsulating M(Co, Fe)-Ni alloy for electrochemical production of

Journal Article

Generation of enhanced stability of SnO/In(OH)/InP for photocatalytic water splitting by SnO protection

Journal Article

Design and analysis of dual fuel methanol-power poly-generation

Minghua WANG , Zheng LI , Weidou NI ,

Journal Article

Metal-Free Hexagonal Perovskite High-Energetic Materials with NH<sub>3sub>OH+/NH<sub>2sub>NH<sub>3sub>+ as B-site Cations

Yu Shang, Zhi-Hong Yu, Rui-Kang Huang, Shao-Li Chen, De-Xuan Liu, Xiao-Xian Chen, Wei-Xiong Zhang, Xiao-Ming Chen

Journal Article

Synergistic utilization of coal and other energy – Key to low carbon economy

Weidou NI, Zhen CHEN

Journal Article