Monoethanolamine (MEA) scrubbing is an energy-intensive process for carbon capture and sequestration (CCS) due to the regeneration of amine in stripping towers at high temperature (100–120°C) and the subsequent pressurization of CO2 for geological sequestration. In this paper, we introduce a novel method, reactive hydrothermal liquid phase densification (rHLPD), which is able to solidify (densi...

Water tightness of a concrete cover layer is important, as it is typically used as a protective coating of the steel reinforcement. Water tightness can be impaired by crack formation or by permeability. A bacteria-based lactate-derived healing agent (HA) can be added to concrete to enhance the potential for restoration of water tightness. Bacterial conversion of the included carbon source resul...

In order to study the hydrothermal behavior of cotton fiber, the carbonization process and structural evolution of discarded cotton fiber (WCF) under hydrothermal conditions were discussed use microcrystalline cellulose (MCC) and glucose as model compounds. The results showed that high temperature was beneficial to the hydrolysis of discarded cotton fiber, and the yield of the sugar was 4.5% wh...

Attrition study on cement-supported biomass-activated calcium sorbents for CO2 capture Lunbo Duan *, Zhijian Yu , María Erans , Yingjie Li , Vasilije Manovic , Edward J. Anthony ‡ † Key Laboratory of Energy Thermal Conversion and Control, Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China ‡ Combustion and CCS Centre, Cranfield University, Bedfor...

The objective of the study is to develop a model that will help in understanding process carbonation. This investigates influence different physical, chemical and environmental parameters on carbonation concrete. incorporates change porosity variations internal relative humidity concrete due drying rate pore saturation were found control demonstrates preconditioning duration amount water releas...

Use of Engineered Cementitious Composites (ECC) has been proven to enhance structural fatigue resistance and reduce the use-phase emissions for transportation infrastructure. Carbonation curing offers an opportunity embodied carbon ECC via direct CO2 sequestration. In this study, impact carbonation on ECC’s was examined. uptake, static flexural behavior, performance, single fiber pull-out behav...

The effect of adding both Al2O3 and ZrO2 to limestone (CaCO3) enhance the cyclic stability reaction kinetics endothermic CO2 desorption exothermic absorption is investigated. formation CaZrO3 Ca-Al-O compounds, e.g. CA5Al6O14, evident, which enables a substantial >80% capacity retention over 50 calcination/carbonation cycles. additives enable fast where an 80% energy storage reached within 20–3...

Carbonation is inevitable process during the service life of concrete structures, where CO 2 causes decalcification calcium-bearing phases. These changes affect durability and accelerate corrosion reinforcement. Alkali-activated materials (AAMs) are alternative, cement-free binders based on aluminosilicate rich precursor alkaline activator. The interest in AAMs increased last century, due to pr...

This work reports a novel in situ XRD analysis on the multicycle calcination/carbonation of natural limestone and dolomite at relevant conditions for thermochemical energy storage (TCES) concentrated solar power (CSP) plants. The experiments allow analysing noninvasively time evolution different phases involved Calcium Looping (CaL) process. Our has revealed new key features to understand progr...