Evaluation of postcombustion CO2 capture by a solid sorbent with process modeling sing experimental CO2 and H2O adsorption characteristics

None, None; None, None; None, None; None, None; None, None; None, None

Evaluation of postcombustion CO₂capture by a solid sorbent with process modeling sing experimental CO₂ and H₂O adsorption characteristics

Journal Article (2018)

Author(s)

Jan Wilco Dijkstra (Energy Center of the Netherlands (ECN))

Stéphane Walspurger (Energy Center of the Netherlands (ECN))

Gerard D. Elzinga (Energy Center of the Netherlands (ECN))

Johannis A.Z. Pieterse (Energy Center of the Netherlands (ECN))

Jurriaan Boon (Energy Center of the Netherlands (ECN))

Wim G. Haije (TU Delft - Large Scale Energy Storage)

DOI related publication

https://doi.org/10.1021/acs.iecr.7b03552 Final published version

To reference this document use

https://resolver.tudelft.nl/uuid:ca815b32-31a1-4d8c-b661-b63e83d67706

More Info

expand_more

Publication Year

2018

Language

English

Issue number

4

Volume number

57

Pages (from-to)

1245-1261

Downloads counter

207

Abstract

A combined experimental and modeling study was performed to evaluate the relation between sorbent characteristics and process performance for solid sorption postcombustion CO 2 capture. A pulverized coal (PC) and a natural gas combined cycle (NGCC) power plant were considered, addressing CO 2 and H 2 O sorption. The measured isotherms for PEI/silica sorbent were implemented in an equilibrium-based flow sheeting model. The PC regeneration heat demand is 3.9 GJ/ton CO 2 captured. This is lower than that of the NGCC and, though a direct comparison is not valid, similar to a literature MEA case. Solid sorption systems hold the promise to be energetically superior to MEA: a 2-fold increase in CO 2 adsorption capacity (to 4.4 mmol/g) yields a regeneration heat demand of 3.3 GJ/ton, even when accompanied by a similar increase in H 2 O adsorption capacity.