A5024462094- Zeolite Catalysis and Synthesis
- Carbon Dioxide Capture Technologies
- Membrane Separation and Gas Transport
- Lubricants and Their Additives
- Mesoporous Materials and Catalysis
- Tribology and Wear Analysis
- Advanced Cellulose Research Studies
- Phase Equilibria and Thermodynamics
- Metal-Organic Frameworks: Synthesis and Applications
- Iron oxide chemistry and applications
- Biofuel production and bioconversion
- Nanomaterials for catalytic reactions
- Adhesion, Friction, and Surface Interactions
- Catalysis and Hydrodesulfurization Studies
- Muon and positron interactions and applications
- Arsenic contamination and mitigation
- Catalysts for Methane Reforming
- Ionic liquids properties and applications
- Thermochemical Biomass Conversion Processes
- Clay minerals and soil interactions
- Catalytic Processes in Materials Science
- Mine drainage and remediation techniques
- Advanced NMR Techniques and Applications
- Social and Educational Sciences
- Protein purification and stability
Luleå University of Technology
2011-2022
Environmental and Water Resources Engineering
2016
SKF (Netherlands)
2010-2011
United States Food and Drug Administration
1980
Abstract Membrane separation of CO 2 from natural gas, biogas, synthesis and flu gas is a simple energy‐efficient alternative to other techniques. But results for ‐selective permeance have always been achieved by randomly oriented thick zeolite membranes. Thin, membranes great potential realize high‐flux high‐selectivity mixtures at low energy cost. We now report facile method preparing silica MFI in fluoride media on graded alumina support. In the resulting membrane straight channels are...
Biogas and natural gas are interesting fuels with high H/C ratio. However, these gases frequently contain carbon dioxide water which lowers the heat value of may induce corrosion. Therefore, development more efficient processes, such as membrane processes improved adsorbents, for separation from biogas is great importance. Zeolite ZSM-5 membranes promising this controlled by adsorption diffusion different species in zeolite. Multicomponent data therefore required new processes. In present...
Fully biobased affinity membranes based on cellulose nanocrystal functional layer for removal of heavy metal ions from industry effluents were successfully demonstrated.
A systematic investigation of two sets defect free and defective ZSM-5 crystals with controlled thickness (T) between 30 400 nm their performances in methanol conversion was reported for the first time present work. The a 35 are by far smallest ever displayed superior activity, stability selectivity to slower diffusing compounds, which resulted high yield e.g. gasoline 1,2,4-trimethylbenzene isomer octane number, as compared other studied catalysts. Almost only products forming zeolite pores...
In order to have an efficient adsorptive separation, structured adsorbents are expected satisfy not only mass transfer and pressure drop requirements but also thermal management requirements. To what extent the structure of adsorbent affects behavior system is a question which will be addressed in this study. The primary purpose study was assess performance alternate through development numerical models for prediction their under two-step swing adsorption (PSA) condition. single-step CO2...
Ethylene glycol (EG)-based lubricant was prepared with dissolved organosolv lignin from birch wood (BL) and softwood (SL) biomass. The effects of different types on the rheological, thermal, tribological properties lignin/EG lubricants were comprehensively investigated by various characterization techniques. Dissolving in EG results outstanding lubricating properties. Specifically, wear volume disc EG-44BL is only 8.9% that lubricated pure EG. enhanced anti-wear property EG/lignin system...
Ultra-thin MFI zeolite membranes with different Si/Al ratios (152, 47 and 26) were prepared on graded α-alumina supports in the presence of organic template molecules evaluated for separation equimolar CO2/CH4 mixtures at temperatures from 315 to 249 K. The thicknesses all less than 500 nm permporometry showed that number size defects low two highest ratio (152 47). membrane lowest (26) also had amounts mesopore range, but did have a few macropore defects. All very high CO2 permeances entire...
Addition of iron oxide to arsenic-contaminated soil has been proposed as a means reducing the mobility arsenic in soil. Arsenic and zinc are common coexisting contaminants soils. The presence therefore may affect adsorption properties on oxide, thus its influence Zn(II) arsenate ions was studied. Batch experiments indicated that increased removal from solution by ferrihydrite at pH 8. However, ATR-FTIR spectroscopy showed no film occurred pD 8 Zn(II). Precipitation hydroxide carbonate...
Biobutanol produced by, e.g., acetone-butanol-ethanol (ABE) fermentation is a promising alternative to petroleum-based chemicals as, solvent and fuel. Recovery of butanol from dilute broths by hydrophobic membranes adsorbents has been identified as route. In this work, the adsorption water vapor in silicalite-1 film was studied using situ attenuated total reflectance-Fourier transform infrared (ATR-FTIR) spectroscopy better understand properties adsorbents. Single-component isotherms were...
A model for tribofilm growth is developed. The used in combination with numerical contact mechanics tools to enable evaluation of the combined effects chemistry and mechanics. tuned experimental data thereafter applied rough surfaces. evaluated 3 different cases short-term behaviour analyzed. results show how tribofilms grow patches. expected be as a tool analysis interaction between
Functional additives, particularly extreme-pressure and antiwear in formulated oil will compete to adsorb form a protective layer tribological contacts. The thickness of the is determined by equilibrium between formation removal processes. In this article, interactions additives base molecules operating conditions influence friction wear are studied. One polar (ester oil) one non-polar (poly-α-olefin) commercial blended with zinc dialkyl dithiophosphates were performance was evaluated using...