循环经济在天然气水合物甲烷生产中的应用:钢铁厂残余粉尘的潜力

IF 1.1 Q3 METALLURGY & METALLURGICAL ENGINEERING
G. Stornelli, A. Gambelli, A. Di schino, G. Zucca, F. Rossi
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引用次数: 0

摘要

天然气水合物是应对不断增长的能源需求的最有希望的解决方案之一;此外,通过注入二氧化碳回收甲烷的可能性,其理论交换比等于1,使其成为潜在的碳中性能源。其中,与海洋矿床实际作业有关的能源成本。使用化学抑制剂和/或促进剂来改善交换过程正引起越来越多的兴趣,研究人员主要集中在寻找对环境不太友好的添加剂和降低其成本。在这个方向上,目前的工作涉及在炼钢过程中产生的废粉尘作为CO2/CH4替代过程的促进剂的可能性。这种沙子通常含有各种各样的化合物,如金属氧化物、氧化铝、盐等。其中一些化合物的化学组成接近于众所周知的水合物抑制剂/促进剂。此外,这种应用可能是废物的进一步能量循环。在这项工作中,在不同浓度的氧化铜存在和不存在的情况下,测试了甲烷和二氧化碳水合物的形成。然后将水合物形成和解离的结果相互比较,并与这些化合物的水合物平衡值进行比较。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
CIRCULAR ECONOMY APPLIED TO METHANE PRODUCTION FROM NATURAL GAS HYDRATE RESERVOIRS: POTENTIALITIES OF RESIDUAL DUST COMING FROM STEEL PLANTS
Natural gas hydrate represents one of the most promising solutions to answer to the constantly increasing energy demand; in addition, the possibility of recover methane via carbon dioxide injection, with a theoretical exchange ratio equal to 1, makes it a potential carbon neutral energy source. Among them, energetical costs associated to practical operations in marine deposits. The use of chemical inhibitors and or promoters to improve the exchange process is gaining increasing interest and researchers are mainly focused on finding less environmental unfriendly additives and on reducing their costs. In that direction, the present work deals with the possible use of waste dust, produced during steel mill processes, as promoter of the CO2/CH4 replacement process. That sand commonly contains a great variety of compounds, such as metal oxides, alumina, salts, and so on. Some of them have a chemical composition close to well-known hydrate inhibitors/promoters. Moreover, that application could be a further energetic cycle for a waste product. In this work, both methane and carbon dioxide hydrate formation were tested in absence and in presence of cupper oxides, with different concentrations. Hydrate formation and dissociation results where then compared among each other and with hydrate equilibrium values for those compounds.
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来源期刊
Acta Metallurgica Slovaca
Acta Metallurgica Slovaca METALLURGY & METALLURGICAL ENGINEERING-
CiteScore
2.00
自引率
30.00%
发文量
22
审稿时长
12 weeks
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