二氧化碳资源循环利用

简述了国内外对CO2的消费概况；对氮肥厂剩余的CO2可加以回收利用，生产诸多化工产品。     

二氧化碳开发利用综述

介绍二氧化碳开发利用的进展 ,并提出建议。     

开发二氧化碳资源在农业上的新用途

调查了镇海炼化股份有限公司的二氧化碳资源及二氧化碳产品的市场情况。重点调研了二氧化碳作为一种氧化肥料在温室大棚蔬菜生产上的应用,指出二氧化碳气肥在农业上有巨大的市场潜力,值得公司开发生产。二氧化碳气肥的推广应用,可给全省保护地蔬菜生产带来明显的经济效益。     

二氧化碳资源的综合利用

介绍了二氧化碳资源的应用及其深加工途径。     

二氧化碳资源的综合利用

介绍了ＣＯ２资源的综合利用途径，重点介绍了在化工产品开发方面的利用。     

二氧化碳的利用前景

综述国内外CO2市场生产和利用现状，阐述CO2作为一种潜在的碳资源在各个领域中的广泛利用和发展前景。     

二氧化碳的利用与开发

综述了以二氧化碳为原料开发的有化工产品、工业化的无机化工产右以及直接利用二氧化碳的途径。     

二氧化碳的资源与应用

介绍了国内外ＣＯ２资源及开发情况,综述了ＣＯ２在国民生产领域内的应用及前景。推广ＣＯ２的应用技术可获得环境、经济双收之效果。     

煤基产业的资源循环利用与低碳流程再造

面向碳中和与碳达峰的战略目标,立足于富煤工业区偏重煤的能源经济结构,讨论了煤基产业在资源循环及低碳生态环境中面临的挑战。首先,基于工业生态与循环经济的路线,从去产能与国土空间规划减排,到过程工业再造减排,再到零碳技术园区的建设,对煤电、化工和过程工业等煤基产业的发展提出了一些建议。其次,介绍了煤基废弃资源循环利用的具体措施,包括焦化废水的深度处理与回用、固体废弃物的材料化/能源化利用,以及低品位资源综合利用的途径等。最后,总结了二氧化碳减排与资源化利用的多种方式,以二氧化碳的矿化固定与绿色转化为主,在实现煤基产业的绿色转型发展的同时,实现超低碳排放。     

Engineering Solutions for Limiting the Increase of Atmospheric Carbon Dioxide

The article describes possible engineering solutions that can reduce the carbon dioxide (CO₂) content of the air. To demonstrate the point fossil fuel power plants will be taken as a model for the source of CO₂. The global mass balance shows that the oceans play a major role in storing CO₂. The hypothesis presented states that the real problem is not the absolute CO₂ content, rather its change. Consequently, present emissions should be stored for future release. Under the current worldwide measures to reduce power consumption CO₂ emissions are unlikely to decrease. A number of strategies for the maritime sequestration of CO₂ are reported in the contribution. One proposal for sequestration is the use of shallow waters which form a thermohaline current: the dissolved gas will travel for hundreds of years in deep sea currents. In the latter case, CO₂ injection is easily achieved. Several scenarios are considered for the fate of this CO₂‐enriched current. The environmental impact is briefly reported. The article will describe current research requirements, demonstrating that similar research in the US and Japan is presently more advanced in comparison to that in Europe. The sequestration of carbon dioxide on land will be the subject of a second publication. It is obvious that the sequestration of CO₂ is the method after all rational chances to save energy.     

现代二氧化碳吸收工艺研究

综述了现代二氧化碳吸收工艺研究进展,介绍了目前国内外现有的二氧化碳吸收方法,包括物理吸收法、膜吸收法、化学吸收法、离子液体法、电化学法和O2/CO2燃烧法,简要介绍了各种吸收方法的特点及所做研究,重点讨论了工业应用较广的化学吸收法,分析了离子液体法与其他有机溶剂比较的优缺点,并对新工艺方法进行了展望.     

CO2 Adsorption and Desorption for CO2 Enrichment at Low-Concentrations Using Zeolite 13X

Adsorption of CO₂ using zeolite 13X as adsorbent has been studied extensively, but little attention has been paid to CO₂ adsorption at very low concentrations such as in the ambient air. Furthermore, there is almost no information on CO₂ desorption characteristics. In a carbon enrichment for plant stimulation system, ambient CO₂ is enriched from 400 to 1000 ppm to provide an enriched CO₂ stream for plant growth in greenhouses. To provide essential design data, systematic performance tests were carried out to evaluate both the adsorption and desorption capacity, enrichment factor, moisture content, and cyclic performance. It was found that the adsorption capacity and CO₂ concentration in the enriched air are a function of adsorption temperature and the difference of adsorption and desorption temperatures, for a given adsorbent loading at a properly selected gas flow rate.     

基于Aspen模拟费托合成与CO_2再利用系统

建立了集成费托合成与碳还原反应系统的模型,采用Aspen软件进行仿真分析和计算,重点分析碳气化反应过程及费托合成的产物分布。在煤气化联合循环发电系统中集成该模块,CO2与焦炭发生还原反应得到CO,与来自煤气化单元的H2在费托合成反应器里合成液体燃料,未反应完的合成气用于燃气轮机联合循环发电。针对碳还原反应器和费托合成反应器两部分进行了模拟分析,研究了反应条件对产物的影响。分析结果表明回收CO2制取具有高附加值的液体燃料是CO2再利用的一条有效途径。     

Increasing the Equilibrium Yield of Oxidative Dehydrogenation with CO2 by Secondary Reactions

Oxidative dehydrogenation with carbon dioxide as an oxidant at low temperatures is strongly limited by its thermodynamic equilibrium. It is be shown that the equilibrium yield of the desired olefin can significantly be increased utilizing side reactions. This does not necessarily require the addition of another reactant, since this reactant can be formed in situ from the starting alkane. This effect allows for a decrease of the reaction temperature as well as the overall heat demand of the reaction. As a consequence, the exergy demand of the reaction system is reduced substantially.     

Molecular Simulation Study for CO2 Clathrate Hydrate

The present work has concentrated on the structure of CO₂ hydrate in the NPT ensemble using SPC (simple point charge) intermolecular potential model of water by the Monte Carlo (MC) molecular simulation. A mixture of water and CO₂ placed arbitrarily in a cubic cell has been used as a model system to simulate the CO₂ clathrate hydrate at temperatures ranging from 150–280 K and pressure up to 10 MPa. The result shows that the obtained MC simulation agrees well with the results obtained by molecular dynamic (MD) simulation. The present work is also directed to the study of structure with TIP4P potential model of water.     

Redeposition in CO2 textile dry cleaning

Perchloroethylene (PER) is commonly used as cleaning solvent in the textile dry-cleaning industry but this chemical is toxic by nature. One of the potential PER replacements is carbon dioxide (CO₂), which is non-toxic, cheap, and widely available. Previous studies have indicated that the particulate soil removal with CO₂ is lower compared to that of PER. While the particulate soil removal of the CO₂ dry-cleaning was studied, it was found that redeposition of particulate soil occurs. Several experiments have been carried out to study and reduce this problem. In these experiments, textiles stained with different kinds of particulate soils were cleaned using a 25 L CO₂ dry-cleaning set-up. It was found that the redeposition level increases along with washing time, while rinsing has little influence. Modifying the filtration system by using scavenger textile, or adding a cellulose compound to the cleaning vessel as anti redeposition agent can significantly reduce redeposition.     

CHEMICAL ABSORPTION OF CO2 AND SO2 INTO Ca(OH) 2 SLURRY

Chemical absorption of CO₂ and SO₂2 as single gases and as a mixture into slurries of Ca(OH) ₂ was studied in a stirred vessel with a flat gas-liquid interface. In the case of CO₂, the reaction product interrupted the subsequent gas absorption in the absence of a surface active agent. With single gases, the enhancement factor for SO₂ was much larger than that for CO₂, though both were larger than that into saturated solution. With the mixed gases, the enhancement factor for S02 was almost equal to that for the single gas absorption, but for CO₂ it was only slightly larger than that into the saturated solution     

CO_2管道输送技术现状研究

随着油田三次开采的深入与碳捕集封存技术的发展,CO2注入成为提高采收率与缓解温室气体效应的有效手段,针对气源地与注入地差异问题,管道输送以输量大、输送距离远、经济性好等优点成为CO2输送的最重要途径。通过对国内外CO2管道输送技术的研究,针对四种管输状态(即超临界输送、密相输送、液态输送、气态输送)的不同特点,得出管输中超临界输送与密相输送是较为合理的输送方式,并分析了输送过程中遇到的关键技术问题,为国内CO2管道输送的开展提供技术支撑。     

活性炭对CO_2的吸附与解吸研究进展

本文介绍了工业上CO2的主要来源及应用,以及工业上分离、回收CO2的常用方法。同时介绍了活性炭在变压吸附分离气体领域的应用,以及变压吸附过程中吸附剂再生的常用方法。详细综述了活性炭的孔结构、表面化学结构等因素对CO2的吸附及解吸性能影响的研究进展。