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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: 2 to CO/CH₃OH products.₃OH selectivity (

CH

₃OH and improving the hydrogenation rateHence, the Cu–Ce–Zr catalyst with 8 wt% Ce loading favors CH₃OH selectivity and CO₂₂ hydrogenation to CH₃OH.

Keywords： CO₂ hydrogenation Cu–Ce–Zr hydroxyls CO/CH₃OH selectivity

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The catalytic effect of both oxygen-bearing functional group and ash in carbonaceous catalyst on CH 4-CO 2 reforming

Weidong ZHANG, Yongfa ZHANG,

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 2, Pages 147-152 doi: 10.1007/s11705-009-0242-1

Abstract: A kind of new catalyst—carbonaceous catalyst—for CH-CO reformation has been developed inIt has been found that the carbonaceous catalyst is an efficient catalyst on CO-CH reforming.; the ash components in carbonaceous catalyst also have an important influence on the CO-CH reformingFeO, NaCO, and KCO in the ash can catalyze the CO-CH reforming reaction; CaO has little effect on CO-CHCaO can catalyze the gasification between carbonaceous catalyst and CO; AlO and MgO inhibit the CO-CH

Keywords： oxygen-bearing functional carboxyl phenolic hydroxyl CH-CO reformation CO-CH reforming

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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 CO₂ were not the first choice for production of high valuedHere, CaCO₃ hollow microspheres, a high-value product was synthesized from such a reactionWhen 2.5 L·min^–1·L^–1 CO₂ was flowed into distiller waste (pH = 11.4)Firstly, the Ca(OH)₂ in the distiller waste stimulated the nucleation of calcite with a non-templateFinally, the flow process for absorption of CO₂ by distiller waste was designed and found

Keywords： distiller waste CO₂ hollow microsphere CaCO₃ Ca(OH)₂ inside−out

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Catalytic ozonation of reactive red X-3B in aqueous solution under low pressure: decolorization and OH

Hong SUN,Min SUN,Yaobin ZHANG,Xie QUAN

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 4, Pages 591-595 doi: 10.1007/s11783-014-0694-5

Abstract: Catalytic ozonation of Reactive Red X-3B in aqueous solution had been carried out in an ozone oxidationMn-Fe-ceramic honeycomb catalyst could obviously improve the decoloration efficiency of Reactive Red X-3BAdsorption of Reactive Red X-3B had no obviously influence on the degradation efficiency.followed the mechanism of hydroxyl radical (OH·) oxidation.influence on the degradation efficiency, mainly attributing to facilitate the ozone decomposition and OH

Keywords： catalytic ozonation reactive red X-3B ceramic honeycomb hydroxyl radical (OH·)

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Enhancing the aromatic selectivity of cyclohexane aromatization by CO₂ coupling

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 11, Pages 1801-1808 doi: 10.1007/s11705-023-2325-9

Abstract: Herein, CO₂ is introduced into the cyclohexane conversion process on the HZSM-5 zeolite, whichcan improve the aromatic selectivity.of 48.2% can be obtained at the conditions of 2.7 MPa (CO₂), 450 °C, and 1.7 h⁻¹, which is better than that without CO₂ (aromatic selectivity = 43.2%).¹³C isotope labeling experimental results demonstrate that CO₂ can enter into the

Keywords： aromatics carbon dioxide aromatization coupling reaction ZSM-5 zeolite

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Tuning the catalytic selectivity in electrochemical CO

Jiafang XIE,Yuxi HUANG,Hanqing YU

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 5, Pages 861-866 doi: 10.1007/s11783-014-0742-1

Abstract: Electrochemical conversion of CO to hydrocarbons can relieve both environmental and energy stresses.However, electrocatalysts for this reaction usually suffer from a poor product selectivity and a largeHere we report that tunable catalytic selectivity for hydrocarbon formation could be achieved on Cu nanomaterialsnanowires preferred the formation of C H , while the Cu nanoneedles favored the production of more CHwork provides a facile synthetic strategy for preparing Cu-based nanomaterials to achieve selective CO

Keywords： electrochemical CO₂ reduction Cu oxide nanostructure selectivity hydrocarbon formation

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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)₃ transition layer, which reduces the crystal mismatch between SnO and InP and increasesThe obtained Pt/SnO/In(OH)₃/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)₃/InP without any electron donor under visible irradiation.

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

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Complete oxidation of methane on CoO-SnO catalysts

Xingfu TANG , Jiming HAO , Junhua LI ,

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 3, Pages 265-270 doi: 10.1007/s11783-009-0019-2

Abstract: CoO-SnO hybrid oxides were prepared by the coprecipitation method and were used to oxidate methane (CHThe CoO-SnO with a molar ratio of Co/(Co+Sn) at 0.75 exhibited the highest catalytic activity among allExperimental results showed that the catalysts were considerably stable in the CH combustion reaction

Keywords： Co₃O₄-SnO₂ complete oxidation methane (CH₄)

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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 catalysts-TPD), and temperature-programmed surface reaction (CH -TPSR and CO -TPSR).Ni-Co/Al O -ZrO bimetallic catalyst has good performance in the reduction of active components Ni, Coand CO adsorption.According to the CH -CO -TPSR, there were 80.9% and 81.5% higher CH and CO conversion over Ni-Co/Al

Keywords： Ni-Co bimetallic catalyst composite support CH₄ reforming with CO₂

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Frontier science and challenges on offshore carbon storage

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 7, doi: 10.1007/s11783-023-1680-6

Abstract:

● The main direct seal up carbon options and challenges are reviewed.

Keywords： Offshore carbon storage Direct CO₂ injection CO₂-CH₄ replacement CO₂-EOR CCS hubs CO₂ transport

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Review on cryogenic technologies for CO removal from natural gas

Yujing BI, Yonglin JU

Frontiers in Energy 2022, Volume 16, Issue 5, Pages 793-811 doi: 10.1007/s11708-022-0821-0

Abstract: CO₂ in natural gas (NG) is prone to condense directly from gas to solid or solidify from liquidMeanwhile, CO₂ will also affect the calorific value of NG.Based on the above reasons, CO₂ must be removed during the NG liquefaction process.In this paper, the phase behavior of the CH₄-CO₂ binary mixture is summarized,which provides a basis for the process design of cryogenic CO₂ removal from NG.

Keywords： cryogenic CO₂ removal purification of natural gas (NG) biogas upgrading CH₄-CO₂ binary system

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The modification of titanium in mesoporous silica for Co-based Fischer–Tropsch catalysts

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 8, Pages 1224-1236 doi: 10.1007/s11705-022-2139-1

Abstract: The enhanced metal-support interactions were beneficial for the CO/H₂ ratio at the active

Keywords： Fischer–Tropsch synthesis titanium incorporation mesoporous silica metal-support interactions C₅₊ selectivity

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Greenhouse gas emissions during co-composting of cattle feedlot manure with construction and demolition

Xiying Hao, Francis J. Larney

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 3, doi: 10.1007/s11783-017-0955-1

Abstract: The CK and DG manures were co-composted with (4:1) C&D waste (treatments: CK_CD DG_CD), composted aloneComposting with C&D waste produced similar CO emissions, about double that from manure stockpiling (In contrast, CH emissions were reduced by the inclusion of C&D waste (64 gC·m with C&D vs. 244 gC·mwithout C&D) while the manure stockpile emitted the greatest amount of CH (464 gC·m ).Additionally, only 0.48% of C was emitted in CH form with C&D waste, compared to 1.68% when composting

Keywords： Livestock manure greenhouse gas flux straw bale compost bin N₂O CH₄ CO₂

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Effect of TiO

Navid Azizi, Mojgan Isanejad, Toraj Mohammadi, Reza M. Behbahani

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 3, Pages 517-530 doi: 10.1007/s11705-018-1781-0

Abstract: The effects of the titanium dioxide nanoparticle load on the morphology and CO /CH separation performance(ether-block-amide) (PEBAX-1657) mixed matrix membranes (MMMs) were investigated from pressures of 3–The incorporation of TiO nanoparticles into the polymeric MMMs improved the CO /CH gas separation performance(both the permeability and selectivity) of the membranes.The CO permeability and ideal CO /CH selectivity values of the nanocomposite membrane loaded with 8

Keywords： mixed matrix membrane TiO₂ nanoparticles PEBAX-1657 CO₂/CH₄ separation

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CO₂ methanation and co-methanation of CO and CO₂ over Mn-promoted Ni/Al₂O₃ 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: The effect of the Mn content on the activity of the Ni/Al O catalysts for CO methanation and the co-methanationof CO and CO in a fixed-bed reactor was investigated.CO methanation activity especially at low temperatures but it had little influence on the CO methanationCO methanation was more sensitive to the reaction temperature and the space velocity than the CO methanationin the co-methanation process.

Keywords： Mn promotion nickel catalysts CO₂ methanation co-methanation of CO and CO₂