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Carbon Dioxide: A Renewable C1 Energy Feedstock

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "B1: Energy and Climate Change".

Deadline for manuscript submissions: closed (10 January 2023) | Viewed by 5529

Special Issue Editors

State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
Interests: greenhouse gas utilization; plasma chemistry; combustion chemistry and diagnostics; solid waste thermal conversion
College of Electrical Engineering and Control Science, Nanjing Tech University, Nanjing 211816, China
Interests: conversion and utilization of carbon-containing molecules; nonthermal plasmas; plasma catalysis; waste treatment; biomass conversion and utilization

Special Issue Information

Dear Colleagues,

Global warming is posing a significant threat to human societies all around the globe. CO2 is one of the major composites of greenhouse gases whose emission is greatly enhanced by human activities, such as the burning of fossil fuels. Measures are urgently needed to reduce CO2 emission or even capture CO2 from concentrated sources and reform it to combustible fuels or value-added chemicals such as methanol, ethanol, etc.

There is a desperate need to simultaneously reduce carbon emission and increase energy supply. As CO2 is a renewable, non-toxic, and cheap C1 energy feedstock, its use plays an essential role in minimizing the greenhouse impact. Numerous works have been carried out on CO2 capture and sequestration, chemical conversion, photochemical and photo-electrochemical reduction, solid oxide electrolysis conversion, plasma (catalytic) conversion, etc. The technology not only requires high energy efficiency but also demands a high selectivity or yield toward target products. In this regard, many CO2 utilization technologies are proven to be promising. Further, renewable energy such as solar and wind energy could be used as an energy source in CO2 utilization to improve its economic feasibility.

The goal of this Special Issue is to present the latest CO2 capture and conversion technologies, including novel laboratory technologies and innovative developments of existing processes. Articles discussing recent ideas in CO2 utilization, including CO2 conversion, activation, adsorption, reduction, policies, life cycle analysis, and environmental and social aspects, especially those related to CO2 as C1 energy feedstock, are welcome.

Dr. Hao Zhang
Dr. Danhua Mei
Guest Editors

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Published Papers (2 papers)

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16 pages, 2548 KiB  
Article
Energy and Exergy Analysis on a Blast Furnace Gas-Driven Cascade Power Cycle
by Hao Chen, Yiming Wang, Linbo Yan, Ziliang Wang, Boshu He and Baizeng Fang
Energies 2022, 15(21), 8078; https://doi.org/10.3390/en15218078 - 31 Oct 2022
Cited by 1 | Viewed by 1462
Abstract
Blast furnace gas is the major combustible by-product produced in the steel industry, where iron ore is reduced by coke into iron. Direct combustion of blast furnace gas after simple treatment for power generation is a common utilization method nowadays. However, this method [...] Read more.
Blast furnace gas is the major combustible by-product produced in the steel industry, where iron ore is reduced by coke into iron. Direct combustion of blast furnace gas after simple treatment for power generation is a common utilization method nowadays. However, this method suffers from low efficiency and high carbon intensity. The use of gas-steam combined cycle is an excellent method to improve the efficiency of blast furnace gas for power generation. However, there is a problem of insufficient utilization of low product heat, and the addition of CCS system can further reduce the power efficiency. To solve these issues, a new blast furnace gas power generation system with a Brayton cycle with supercritical CO2 and a Rankine cycle with transcritical CO2 is proposed in this work. The new system is then thermodynamically simulated by Aspen Plus, after the sub-modules are validated. The effects of molar ratio of steam to carbon, selexol/CO2 mass ratio, compression ratio, turbine import temperature and turbine inlet pressure on the system are investigated. A comparison is also performed between the new combined cycle system and the traditional combined cycle power generation system. The results show that in the new power generation system, net power efficiency of 53.29%, carbon capture efficiency of 95.78% and sulfur capture rate of 94.46% can be achieved, which is significantly better than the performance of the conventional combined cycle. Full article
(This article belongs to the Special Issue Carbon Dioxide: A Renewable C1 Energy Feedstock)
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21 pages, 2302 KiB  
Review
A Scientometric Review of CO2 Electroreduction Research from 2005 to 2022
by Hongfei Wang, Zhipeng Yu, Jie Zhou, Chengming Li, Ananthanarasimhan Jayanarasimhan, Xiqiang Zhao and Hao Zhang
Energies 2023, 16(2), 616; https://doi.org/10.3390/en16020616 - 4 Jan 2023
Cited by 10 | Viewed by 3571
Abstract
Electrocatalytic CO2 reduction is regarded as a green and promising technology because it can convert carbon dioxide into value-added fuel or chemicals in a flexible and sustainable way. This research aimed to comprehensively analyze the research hotspots and trends in the field [...] Read more.
Electrocatalytic CO2 reduction is regarded as a green and promising technology because it can convert carbon dioxide into value-added fuel or chemicals in a flexible and sustainable way. This research aimed to comprehensively analyze the research hotspots and trends in the field of CO2 electroreduction from 2005 to 2022 using bibliometric methods based on the core database of Web of Science. The results showed that 4546 papers on CO2 electroreduction were retrieved from 2005 to 2022, with a clear increasing trend. The research direction was diversified, involving multiple disciplines, and it is a comprehensive research field. ACS Catalysis is the journal with the largest number of articles. China is the country with the largest number of documents and has made significant contributions to the development and progress of this field. Copper-based catalysts are still the research focus in recent years. It is of great practical significance to develop copper-based catalysts with high efficiency, low cost, high stability, and high selectivity for the preparation of C1 products. Full article
(This article belongs to the Special Issue Carbon Dioxide: A Renewable C1 Energy Feedstock)
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