Results 271 to 280 of about 865,686 (295)

A novel integrated CO2 capture and direct methanation process using Ni/CaO catal-sorbents

, 2020
A novel integrated CO2 capture and utilization (CCU) process for direct methanation was proposed to reduce the total required thermal energy by effectively combining CO2 capture and conversion using a Ni/CaO catal-sorbent.
S. Jo, J. Woo, Jong Heon Lee, Tae Young Kim, H. Kang, Soo Chool Lee, J. Kim   +6 more
semanticscholar   +1 more source

Effects of CaO on Two-Step Reduction Characteristics of Copper Slag Using Biochar as Reducer: Thermodynamic and Kinetics

, 2020
Technology system of copper slag thermal energy recovery and direct reduction (TER-DR) was proposed in this paper. Effects of CaO addition and C/O on reduction characteristics were discussed. CaO can improve reduction reaction of 2FeO•SiO2 in copper slag
Zongliang Zuo, Q. Yu, S. Luo, Jingkui Zhang, En-ze Zhou   +4 more
semanticscholar   +1 more source

Thermochemical Heat Storage Performance of CaO Pellets Fabricated by Extrusion–Spheronization under Harsh Calcination Conditions

Energy & Fuels, 2020
To improve the CaO/CaCO3 thermochemical heat storage capacity and the mechanical property of CaO-based material during the repetitive heat storage cycles, CaO pellets were fabricated by the extrusi...
Boyu Li, Yingjie Li, H. Sun, Yuzhuo Wang, Zeyan Wang   +4 more
semanticscholar   +1 more source

Improving Adsorptive Performance of CaO for High-Temperature CO2 Capture through Fe and Ga Doping

Energy & Fuels, 2019
Calcium oxide is an efficient adsorbent for high-temperature CO2 capture process, however, it suffers from rapid deactivation and capacity loss after a few cycles as a result of particle sintering.
Ahmed Al-Mamoori, Shane Lawson, A. Rownaghi, F. Rezaei   +3 more
semanticscholar   +1 more source

Synthesis of CaO/Fe2O3 nanocomposite as an efficient nanoadsorbent for the treatment of wastewater containing Cr (III)

, 2020
In this study, CaO/Fe2O3 nanocomposite was studied as an efficient and novel adsorbent for the sorption of chromium (III) from aqueous media. Different analyses including FTIR, XRD, TGA-DTG, SEM/EDAX, and TEM were used to study the characteristics of CaO/
M. Keshavarz, R. Foroutan, Fatemeh Papari, L. Bulgariu, H. Esmaeili   +4 more
semanticscholar   +1 more source

Green Synthesis of Nanosilica from Coal Fly Ash and Its Stabilizing Effect on CaO Sorbents for CO2 Capture.

Environmental Science and Technology, 2017
High-temperature sorption of CO2 via calcium looping has wide applications in postcombustion carbon capture, sorption-enhanced hydrogen production, and inherent energy storage.
Feng Yan, Jianguo Jiang, Kaimin Li, Nuo Liu, Xuejing Chen, Yuchen Gao, Sicong Tian   +6 more
semanticscholar   +1 more source

Syngas Production from Steam Gasification of Palm Kernel Shell with Subsequent CO2 Capture Using CaO Sorbent: An Aspen Plus Modeling

, 2017
The current work is based on the simulation modeling of steam gasification of palm kernel shell (PKS) with CO2 capture through sorbent (CaO) using Aspen plus. The simulation model is developed using a Gibbs free energy minimization method.
Muhammad Shahbaz, S. Yusup, A. Inayat, M. Ammar, D. O. Patrick, Angga Pratama, Salman Raza Naqvi   +6 more
semanticscholar   +1 more source

Preparation of High Sorption Durability Nano-CaO–ZnO CO2 Adsorbent

Energy & Fuels, 2019
ZnO was doped into nano-CaO adsorbents to increase the sorption durability in the calcium looping (CaL) process. The preparation of a nano-CaO–ZnO adsorbent was studied in detail by varying the ZnO additive amounts and thermal pretreatment conditions ...
Hao Liu, Sufang Wu
semanticscholar   +1 more source

Selective Oxidizing Gas Sensing and Dominant Sensing Mechanism of n-CaO-Decorated n-ZnO Nanorod Sensors.

ACS Applied Materials and Interfaces, 2017
In this work, we investigated the NO2 and CO sensing properties of n-CaO-decorated n-ZnO nanorods and the dominant sensing mechanism in n-n heterostructured one-dimensional (1D) nanostructured multinetworked chemiresistive gas sensors utilizing the ...
Gun-Joo Sun, Jae Kyung Lee, S. Choi, W. Lee, Hyoun-woo Kim, Chongmu Lee   +5 more
semanticscholar   +1 more source

Efficient MgO-doped CaO sorbent pellets for high temperature CO2 capture

Frontiers of Chemical Science and Engineering, 2021
Zhihong Xu, Tao Jiang, Hao Zhang, Yujun Zhao, Xinbin Ma, Shengping Wang   +5 more
semanticscholar   +1 more source