Study of Regenerable Sorbents for CO2 Capture

Influence of temperature and regeneration cycles on Hg capture and efficiency by structured Au/C regenerable sorbents.

The objective of this work is to evaluate a novel regenerable sorbent for mercury capture based on gold nanoparticles supported on a honeycomb structured carbon monolith. A new methodology for gold nanoparticles deposition onto carbon monolith support has been developed to obtain an Au sorbent based on the direct reduction of a gold salt onto the carbon material. For comparison purposes, colloi...

Regenerable sorbents for mercury capture in 10 simulated coal combustion flue gas 11 12 13 14 15 16 17 18

A New Approach for Retaining Mercury in Energy Generation Processes: Regenerable Carbonaceous Sorbents

The energy production processes from fossil fuels represent the first anthropogenic source of mercury emissions in Europe and the second in the world. Among the different possibilities that can be posed to reduce these emissions, this work focuses on the use of regenerable sorbents based on gold nanoparticles dispersed on activated carbon foam. The use of regenerable sorbents would not only all...

Evaluation of CO2 carrying capacity of reactivated CaO by hydration

Steam hydration has been proposed as a suitable technique for improving the performance of CaO as a regenerable sorbent in CO2 capture systems. New hydration experiments conducted in this study, confirm the reported improvements in the capacity of sorbents to carry CO2. An examination of the textural properties of the sorbent after hydration and mild calcination revealed a large increase in the...

CO2 Capture Performance Using Biomass-templated Cement-supported Limestone Pellets

Synthetic biomass-templated cement-supported CaO-based sorbents were produced by granulation process for high-temperature post-combustion CO2 capture. Commercial flour was used as the biomass and served as a templating agent. The investigation of porosity showed that the pellets with biomass or cement resulted in enhancement of porosity. Four types of sorbents containing varying proportions of ...