A5036321112- Carbon Dioxide Capture Technologies
- Phase Equilibria and Thermodynamics
- Zeolite Catalysis and Synthesis
- Membrane Separation and Gas Transport
- Granular flow and fluidized beds
- Metal-Organic Frameworks: Synthesis and Applications
- Mesoporous Materials and Catalysis
- Cyclone Separators and Fluid Dynamics
- Chemical Looping and Thermochemical Processes
- Adsorption and Cooling Systems
- Crystallization and Solubility Studies
- Particle Dynamics in Fluid Flows
- Chemical Thermodynamics and Molecular Structure
- Catalytic Processes in Materials Science
- Thermodynamic properties of mixtures
- NMR spectroscopy and applications
- Analytical Chemistry and Chromatography
- X-ray Diffraction in Crystallography
- Advanced Thermodynamics and Statistical Mechanics
- Membrane-based Ion Separation Techniques
- Chemical and Physical Properties in Aqueous Solutions
- Catalysts for Methane Reforming
- Catalysis and Oxidation Reactions
- Refrigeration and Air Conditioning Technologies
- Process Optimization and Integration
University of Edinburgh
2015-2024
Laboratoire Procédés et Ingénierie en Mécanique et Matériaux
2020
ITRI International
2013
University College London
1998-2007
State Key Laboratory of Heavy Oil
2007
China University of Petroleum, Beijing
2007
UCL Australia
2006
University of Maine
1996-2004
University of L'Aquila
1991-1998
University of New Brunswick
1994-1998
In recent years, Carbon Capture and Storage (Sequestration) (CCS) has been proposed as a potential method to allow the continued use of fossil-fuelled power stations whilst preventing emissions CO2 from reaching atmosphere. Gas, coal (and biomass)-fired can respond changes in demand more readily than many other sources electricity production, hence importance retaining them an option energy mix. Here, we review leading capture technologies, available short long term, their technological...
A series of univalent cation forms zeolite Rho (M9.8Al9.8Si38.2O96, M = H, Li, Na, K, NH4, Cs) and ultrastabilized (US-Rho) have been prepared. Their CO2 adsorption behavior has measured at 298 K up to 1 bar related the structures dehydrated determined by Rietveld refinement and, for H-Rho US-Rho, solid state NMR. Additionally, properties H-form silicoalumino-phosphate with RHO topology ZK-5 were comparison. The highest uptakes 0.1 bar, both obtained on Li-forms (Li-Rho, 3.4 mmol g–1;...
Zeolites with flexible structures that adapt to coordinate extraframework cations when dehydrated show a rich variety of gas adsorption behavior and can be tuned optimize kinetics selectivity. Merlinoite zeolite (topology type MER) Si/Al = 3.8 has been prepared in Na, K, Cs forms its structural response dehydration measured: the unit cell volumes decrease by 9.8%, 7.7%, 7.1% for Na-, K-, Cs-MER, respectively. Na-MER adopts Immm symmetry, while K- Cs-MER display P42/nmc difference attributed...
Chemical and petrochemical companies are increasingly realizing that their sustainable development critically depends upon of new innovative processes use more efficiently materials energy. As overall separation/purification account for 40–60% capital operating costs, amelioration can significantly reduce energy waste generation by increasing profits. Gas separation adsorption technology is a well-established unit operation in chemical industries due to its efficiency dealing with large...
The definitions of absolute, excess and net adsorption in microporous materials are used to identify the correct limits at zero infinite pressure. Absolute is shown be fundamental thermodynamic property methods determine solid density that includes micropore volume discussed. A simple means define when it necessary distinguish between three low pressure presented. To highlight practical implications analysis case helium considered detail a combination experiments molecular simulations...
The key challenge in postcombustion capture from gas-fired power plants is related to the low CO2 concentration flue gas (4–8% by volume). This means that conventional amine processes will result a relatively high energy penalty, whereas novel adsorbents and adsorption have potential improve efficiency of separation. High-selectivity are required achieve uptake at partial pressures, which separation process should be based on either very strong physisorption or chemisorption with thermal...
Multiscale material screening strategies combine molecular simulations and process modeling to identify the best performing adsorbents for a particular application, such as carbon capture. The idea go from properties of single crystal prediction performance in real is both powerful appealing; however, it yet be established how implement consistently. In this article, we focus on challenges associated with interface between levels description. We explore predictions actual depend accuracy...
It was aimed to simulate a conventional dual-stage Selexol process for removing CO2 and H2S simultaneously from synthesis gas (syngas) originated typical Integrated Gasification Combined Cycle (IGCC) power plant driven by dry-coal fed gasifier using Honeywell UniSim R400. The solubilities of syngas components on were predicted temperature-dependant Henry's law constants being newly evaluated in this study based the experimental data Xu et al. (1992). operating conditions unit determined so...
Post-combustion carbon capture is a key component of the fight against global warming and climate change. Amine stripping currently leading post-combustion technology, indeed employed at World’s first only commercial scale project applied to power plant, Boundary Dam, Canada. Normally, regeneration spent amine solution achieved by with hot pressurized steam, around 120–140 °C 1–2 bar. However, production these conditions costly leads significant degradation amine. Moreover, size equipment,...
This paper reports the results of an international interlaboratory study led by National Institute Standards and Technology (NIST) on measurement high-pressure surface excess carbon dioxide adsorption isotherms NIST Reference Material RM 8852 (ammonium ZSM-5 zeolite), at 293.15 K (20 °C) from 1 kPa up to 4.5 MPa. Eleven laboratories participated in this exercise and, for first time, reference data are reported using a material. An empirical equation nex=d(1+exp[-ln(P)+a/b])c, [nex -surface...
An exemplary 10 MWth biomass-fuelled CHP plant equipped with a FICFB (Fast Internally Circulating Fluidised Bed) gasifier and Jenbacher type 6 gas engine was simulated using Honeywell UniSim R400 to estimate the power thermal outputs. The biomass gasification integrated either pre-combustion adsorptive capture process or conventional post-combustion amine achieve carbon-negative heat generation. practical maximum of carbon rate achievable an CO2 applied syngas stream 49% in overall while...
This work presents an economic and simple method to manufacture low cost, but effective adsorbents for CO2 capture through impregnating DETA a porous silica gel. The results have demonstrated that the cost gel impregnated by molecular-weight amine is stable very well at temperature up 130 °C. developed adsorbent has fast adsorption kinetics can be regenerated temperature. will significantly reduce energy used desorb CO2, therefore penalty. effect of loading on textural properties, thermal...
Abstract Batch adsorption experiments are carried out by adding a known amount of adsorbent to liquid solution at initial concentration and following the evolution in time adsorbate. This is very common method obtain equilibrium kinetic information systems, but most cases results analysed on basis empirical models. Two phenomenological models based macropore diffusion beads shrinking core kinetics used generate data that then interpreted with widely unconstrained linear regression methods....
Investigation of adsorbents maximum theoretical performance, computational efficiency multiscale screening workflows, and consistency materials rankings for CO<sub>2</sub>capture.