Charithea Charalambous

ORCID: 0000-0003-4606-6534
Publications
Citations
Views
---
Saved
---
About
Contact & Profiles
Research Areas
  • Carbon Dioxide Capture Technologies
  • Membrane Separation and Gas Transport
  • Phase Equilibria and Thermodynamics
  • Process Optimization and Integration
  • Atmospheric and Environmental Gas Dynamics
  • CO2 Sequestration and Geologic Interactions
  • Metal-Organic Frameworks: Synthesis and Applications
  • Climate Change Policy and Economics
  • Water Quality Monitoring and Analysis
  • Fuel Cells and Related Materials
  • Zeolite Catalysis and Synthesis
  • Carbon dioxide utilization in catalysis
  • Industrial Gas Emission Control
  • Ionic liquids properties and applications
  • Global Energy and Sustainability Research
  • Catalysts for Methane Reforming
  • Social Acceptance of Renewable Energy
  • Adsorption and Cooling Systems
  • Chemical Thermodynamics and Molecular Structure
  • Analytical Chemistry and Sensors
  • Catalysis and Hydrodesulfurization Studies
  • Analytical chemistry methods development
  • Chemical Looping and Thermochemical Processes
  • Analytical Chemistry and Chromatography
  • Machine Learning in Materials Science

Heriot-Watt University
2019-2024

Rocky Mountain Institute
2023

Heriot-Watt University Malaysia
2021

University of Edinburgh
2016-2018

University of Sheffield
2016

Carbon dioxide removal (CDR) is necessary to minimize the impact of climate change by tackling hard-to-abate sectors and historical emissions. Direct air capture storage (DACS) an important CDR technology, but it remains unclear when how DACS can be economically viable. Here, we use a bottom-up engineering-economic model together with top-down technological learning projections calculate plant-level cost trajectories for four technologies. Our analysis demonstrates that costs these...

10.1016/j.oneear.2023.06.004 article EN cc-by One Earth 2023-07-01

One of the main environmental impacts amine-based carbon capture processes is emission solvent into atmosphere. To understand how these emissions are affected by intermittent operation a power plant, we performed stress tests on plant operating with mixture two amines, 2-amino-2-methyl-1-propanol and piperazine (CESAR1). forecast model impact interventions, developed machine learning model. Our showed that some interventions have opposite effects components solvent. Thus, mitigation...

10.1126/sciadv.adc9576 article EN cc-by-nc Science Advances 2023-01-04

In this work, we present the latest advancements from our PrISMa (Process-Informed design of tailor-made Sorbent Materials) platform, where seamlessly connect quantum calculations, molecular simulations, process design, techno-economic assessment (TEA), and life cycle (LCA), to provide insights guide selection optimal sorbent-based capture technologies. The performance 1200 Metal-Organic Frameworks (MOFs) materials for over 60 case studies are investigated, covering different CO2 sources,...

10.2139/ssrn.5068028 article EN SSRN Electronic Journal 2025-01-01

Electrochemistry offers a transformative approach for carbon dioxide removal (CDR), addressing critical challenges such as energy consumption and scalability. By using clean electricity, electrochemical systems can significantly reduce operational costs, making CDR technologies more cost-effective. This paper delves into the potential of methods, specifically in Direct Air Capture (DAC), Indirect Water (IWC), Hybrid Systems (HYB). Drawing on recent developments field findings from RMI's...

10.2139/ssrn.5071031 article EN SSRN Electronic Journal 2025-01-01

To rank the performance of materials for a given carbon capture process, we rely on pure component isotherms from which predict mixture isotherms. For screening large number materials, also increasingly predicted molecular simulations. In particular, such studies, it is important that procedures to generate data are accurate, reliable, and robust. this work, develop an efficient automated workflow meticulous sampling The was tested set metal-organic frameworks (MOFs) proved be reliable...

10.1021/acs.iecr.3c01358 article EN cc-by Industrial & Engineering Chemistry Research 2023-06-20

The need to create a new approach carbon capture processes that are economically viable has led the design and synthesis of sorbents selectively dioxide by physisorption. Solid Ionic Liquids (SoILs) were targeted because their tunable properties solid form under operational conditions. Molecular modelling was used identify candidate SoILs number materials based on low cost, environmentally friendly acetate anion selected. showed excellent selectivity for over nitrogen oxygen moderate...

10.1039/c6fd00035e article EN cc-by Faraday Discussions 2016-01-01

Reducing CO2 emissions requires urgently deploying large-scale carbon capture technologies, amongst other strategies. The quest for optimum technologies is a multi-objective problem involving various stakeholders. Today's research of these follows sequential approach, with chemists focusing first on material design and engineers subsequently seeking the optimal process. Eventually, this combination materials processes operates at scale that significantly impacts economy environment....

10.26434/chemrxiv-2023-sn90q preprint EN cc-by-nc-nd 2023-06-20

Direct air capture and storage is a technological solution to removing CO2 from our atmosphere that deemed necessary reach climate targets. However, huge question marks remain over the current future costs. Here, we show cost of DACS, for four example technologies, plants built today before project these costs into using learning theory. We exhibit first will be higher than many figures quoted today, but long-term, this can reduce $80-600 t-CO2-1 at Gt-CO2 year-1 technology scale. also...

10.26434/chemrxiv-2022-dp36t-v2 preprint EN cc-by 2022-07-11

Adsorption equilibria of CO2, N2, and the CO2/N2 binary system on AQSOA FAM Z02 grains were measured over a temperature range 295 to 348 K wide in pressure from 0.2 20 bar using gravimetric method. CO2 N2 single-component experimental equilibrium measurements regressed Toth equation. adsorption reported higher loadings compared at all temperatures, with an capacity 6.1 mmol g–1. The mixture different gas-phase compositions (0.15/0.85, 0.50/0.50, 0.80/0.20 mole fractions) was studied. data...

10.1021/acs.jced.7b00864 article EN Journal of Chemical & Engineering Data 2018-02-06

Direct air carbon capture and storage (DACCS) involves a set of approaches for capturing CO2 directly from the its subsequent long-term storage. DACCS is at an early stage technical development currently faces variety challenges, including high cost energy requirements. Building on publicly available data, this paper provides: (i) overview classification systems, (ii) harmonization economic performance direct technologies, (iii) comprehensive list technical- infrastructure-based obstacles to...

10.26434/chemrxiv-2023-5f00r-v2 preprint EN cc-by 2023-04-05

Direct air carbon capture and storage (DACCS) involves a set of approaches for capturing CO2 directly from the its subsequent long-term storage. DACCS is at an early stage technical development currently faces variety challenges, including high cost energy requirements. Building on publicly available data, this paper provides: (i) overview classification systems, (ii) harmonization economic performance direct technologies, (iii) comprehensive list technical- infrastructure-based obstacles to...

10.26434/chemrxiv-2023-5f00r-v3 preprint EN cc-by 2023-04-06

After a 13,000-hour test campaign with aqueous 30 wt% MEA (2-aminoethanol) solvent at the CO2 capture pilot plant Niederaussem, another long-term was carried out as part of ALING-CCUS project. This ran for more than 12,275 hours AMP/PZ (2-Amino-2-methyl-1-propanol/piperazine) solvent, named CESAR1 (3.0 molar AMP (~ 26.74 wt%) and 1.5 PZ 12.92 wt. %)). A minimum specific reboiler duty 2,970 MJ/tCO2 identified operation four active absorber beds (total 16 m packing height). Neither lower...

10.2139/ssrn.3812132 article EN SSRN Electronic Journal 2021-01-01

In our previous work, we reported results on solvent management, emissions, and dynamic behavior from an 18-month testing campaign with monoethanolamine (MEA) at the PCC pilot plant Niederaussem. this study, extended work to include CESAR1 solvent, a blend of 2-amino-2-methyl-1-propanol (AMP) piperazine (PZ) in water, as part efforts ALING-CCUS project evaluate if could be established new benchmark for post-combustion capture. From long-term (>12,275 h) experience, has shown substantial...

10.2139/ssrn.3812299 article EN SSRN Electronic Journal 2021-01-01

Direct air capture and storage (DACS) is a carbon dioxide removal technology that necessary to reach our climate targets. However, huge question marks remain regarding the cost. In contrast previous studies, we use costing methodology truly consistent with readiness level of DACS calculate cost trajectories for four example technologies. Our analysis demonstrates unlikely $100 t-CO2-1 target, as costs fall $100-600 at Gt-CO2 year-1 scale. Rational siting energy source selection will be...

10.26434/chemrxiv-2022-dp36t-v3 preprint EN cc-by 2022-11-24

In this work, we developed a screening platform to fast-track the development of sorbent-based carbon capture applications. The consists of: (1) case study description, (2) material characteristics, (3) process evaluation, (4) techno-economic analysis, and (5) life cycle assessment. description includes information needed run ensures consistency in platform. This is related CO2 source/emitter, destination/sink, geographical location/region which plant operates, operation, used equipment,...

10.2139/ssrn.4286397 article EN SSRN Electronic Journal 2022-01-01

To rank the performance of materials for a given carbon capture process, we rely on pure component isotherms from which predict mixture isotherms. For large-screening studies, it is important that computational procedures to generate data are accurate, reliable, and robust. In this work, develop an efficient automated workflow meticulous sampling The was tested set metal organic frameworks (MOFs) proved be reliable different guest molecules. We show coupling our with Clausius-Clapeyron...

10.2139/ssrn.4150348 article EN SSRN Electronic Journal 2022-01-01

Adsorption is a promising technology to develop cost-effective carbon capture solutions for the energy and industrial sectors. The PrISMa project aims platform allow translating specific abatement requirements CO2 source-sink combinations into key performance indicators (KPIs) that will further translate property targets design of novel materials. This possible by using materials such as metal organic frameworks (MOFs) which can be tailor-made according separation process. work presents...

10.2139/ssrn.3815636 article EN SSRN Electronic Journal 2021-01-01
Coming Soon ...