A5003809080- Industrial Gas Emission Control
- Catalytic Processes in Materials Science
- Gas Sensing Nanomaterials and Sensors
- Catalysis and Hydrodesulfurization Studies
- Metal-Organic Frameworks: Synthesis and Applications
- Advanced Photocatalysis Techniques
- Covalent Organic Framework Applications
- Carbon Dioxide Capture Technologies
- Supercapacitor Materials and Fabrication
- Solar-Powered Water Purification Methods
- Conducting polymers and applications
- Thermal and Kinetic Analysis
- Advanced biosensing and bioanalysis techniques
- Nanoporous metals and alloys
- Electrocatalysts for Energy Conversion
- Radioactive element chemistry and processing
- Chemical Synthesis and Characterization
- Thermochemical Biomass Conversion Processes
- Coal Properties and Utilization
- Advanced battery technologies research
- Mercury impact and mitigation studies
- MXene and MAX Phase Materials
- Polymer crystallization and properties
- Heat Transfer Mechanisms
- Synthesis and properties of polymers
Taiyuan University of Technology
2015-2025
Hebei University of Science and Technology
2023
Shandong Academy of Sciences
2019
Nanjing Tech University
2015
State Key Laboratory of Crystal Materials
2008
Shandong University
2008
The performance of γ-Fe2O3 as sorbent for H2S removal at low temperatures (20–80 °C) was investigated. First, γ-Fe2O3/SiO2 sorbents with a three-dimensionally ordered macropores (3DOM) structure were successfully prepared by colloidal crystal templating method. Then, the γ-Fe2O3-based material, e.g., reference and 3DOM sorbents, capture compared that α-Fe2O3 commercial HXT-1 (amorphous hydrated iron oxide). results show has an enhanced activity to over 60 °C, whereas little activity. Because...
A series of iron oxide sorbents with novel structures three-dimensionally ordered macropores (3DOM), ranging in size from 60 to 550 nm, were fabricated and creatively used as for the removal H2S at medium temperatures 300–350 °C. Evaluation tests using thermogravimetric analysis (TGA) a fixed-bed reactor showed that, comparison sorbent prepared by conventional mixing method, 3DOM structure exhibited much higher reactivity efficiency, well high utilization low regeneration temperature. The...
The low sulfur selectivity of Fe-based H2S-selective catalytic oxidation catalysts is still a problem, especially at high O2 content. This alleviated here through anchoring FeOx nanoclusters on UiO-66 via the formation Fe-O-Zr bonds. introduced species exist in form FeIII and FeII. Therein FeIII-O are predominant active sites for H2S-oxidation. formed bonds strengthen redox cycle FeIII/FeII promoting electron transfer from Fe to Zr. FeII-O can activate molecular oxygen oxidize H2S into...
Two types of cobalt oxide–silica composites were prepared by sol–gel method using different alcohols (n-butyl alcohol and ethylene glycol) in sol precursors. The corresponding adsorbents with 3DOM structure also fabricated via a colloidal crystal template method. Physicochemical properties the materials characterized means numerous techniques, performance for hydrogen sulfide (H2S) removal evaluated at room temperature. It was found that n-butyl precursors could achieve material (SCN57-500)...
Preparation of well-dispersed ZnO nanograins is necessary to improve their reactivity toward room-temperature H2S removal. However, the challenge design such a ZnO-based adsorbent with high loading yet be fulfilled. Herein, facile sol–gel strategy reported for preparation ZnO/SiO2 adsorbents efficient removal, by innovating gel-drying method and simultaneously controlling grain formation through optimizing molar ratio ethylene glycol (EG)/nitrates in its precursors. The fabricated embedded...
Nickel laterites cannot be effectively used in physical methods because of their poor crystallinity and fine grain size. Na2SO4 is the most efficient additive for grade enrichment Ni recovery. However, how affects selective reduction laterite ores has not been clearly investigated. This study investigated decomposition with without addition an argon atmosphere using thermogravimetry coupled mass spectrometry (TG-MS). Approximately 25 mg samples 20 wt% was pyrolyzed under a 100 ml/min Ar flow...
ZnO/MCM41 sorbents with bimodal pore structure were prepared via one-step hydrothermal synthesis. The of fresh, sulfided, and regenerated was characterized using XRD, TEM, SEM, nitrogen adsorption isotherms, XPS techniques. results indicate that the desulfurizer 35% ZnO shows highest sulfur capacity (11.0 g S/100 sorbents). optimum regeneration conditions 650 °C, 3000 h–1, 6% O2 concentration. Both ZnSiO4 observed in sorbents. increase cycles leads to higher content Zn2SiO4. However, it no...
Low-cost Fe-based sorbent supported on mesoporous alumina (Fe2O3/Al2O3) was prepared by the sol–gel method. The performance of sorbents evaluated at 500 °C over a fixed-bed reactor. A mixture SO2, O2, and N2 in various proportions used to regenerate after desulfurization. structure before desulfurization characterized using adsorption, XRD, SEM, XPS techniques. results indicate that high sulfur capacity (12.5%) utilization rate (88.6%) Fe2O3 are achieved for (35% Fe2O3) calcinated 3 h....
With the aid of activated carbon, a series mesoporous ZnO/SiO2 sorbents are fabricated by sol–gel method and characterized X-ray diffraction (XRD), Fourier transform infrared (FTIR), N2 adsorption desorption, scanning electron microscopy energy dispersive (SEM-EDX), transmission (TEM), photoluminescence (PL) spectra. The dynamic tests for H2S capture show that prepared materials with AC exhibit excellent performance capture. highest sulfur capacity ZSC-X reaches to 160.95 mgS/g sorbent...
Microwave was applied to the high-temperature removal of H2S by a Fe-based sorbent supported on active coke (Fe2O3/AC). The influence loading content, adsorption temperature, and desulfurization way sulfidation properties sorbents investigated. N2 adsorption, X-ray diffraction, photoelectron spectroscopy, scanning electron microscopy techniques were used characterize structure before after desulfurization. results reveal that microwave performs best at 600 °C, while further increase...
Amine modification is an effective strategy to improve the H2S removal performance of Cu-BTC. In order avoid problem pore blockage after amine in post synthesis impregnation, herein a series Cu-BTC modified with organic adsorbents were prepared via in-situ one-pot method and under ambient conditions was tested. It found that introduced amines, depending on types selected, have significant influence growth its textural properties. The as-prepared materials suggested samples remarkably...
High-temperature gas desulfurization is an efficient and environmentally friendly process for syngas cleanup. The present study investigated the in situ preparation of a zinc oxide/red clay sorbent its desulfurization–regeneration behavior O2/N2 atmospheres. effects regeneration temperature, space velocity, O2 concentration on behaviors ZnO/red sorbents were also investigated. surface structural properties before after characterized by thermogravimetric–differential scanning calorimetry,...