Okolo Gregory N, Everson Raymond C, Neomagus Hein W J P, Sakurovs Richard, Grigore Mihaela, Bunt John R
Center of Excellence in Carbon Based Fuels, Unit for Energy and Technology Systems (UETS), School of Chemical and Minerals Engineering, North-West University, Potchefstroom Campus, Private Bag X6001, Potchefstroom, 2520, South Africa.
CSIRO Energy, 11 Julius Avenue, North Ryde NSW 2113, Australia.
Data Brief. 2019 Jul 13;25:104248. doi: 10.1016/j.dib.2019.104248. eCollection 2019 Aug.
The dataset presented in this article supplements the result and information published in the report "The carbon dioxide, methane and nitrogen high-pressure sorption properties of South African bituminous coals" (Okolo t al., 2019). Four run of mine coal samples from selected underground coal mines from the Highveld, Witbank, and Tshipise-Pafuri coalfields of South Africa were used for the study. The CO, CH, and N sorption data were acquired from an in-house built high-pressure gravimetric sorption system (HPGSS) at the CSIRO Energy, North Ryde, Australia; at an isothermal temperature of 55 °C, in the pressure range: 0.1-16 MPa. The resulting excess sorption isotherm data were fitted to the modified Dubinin-Radushkevich isotherm model (M-DR) and a new Dubinin-Radushkevich - Henry law hybrid isotherm model (DR-HH). The dataset provided in this article, apart from being informative will be useful for comparison with available and future data and for testing other sorption isotherm models developed by other investigators in the area of CO storage in geological media, especially coal seams.
本文所呈现的数据集补充了报告《南非烟煤的二氧化碳、甲烷和氮气高压吸附特性》（奥科洛等人，2019年）中公布的结果和信息。本研究使用了从南非高地、威特班克和齐皮塞-帕富里煤田选定地下煤矿采集的四个矿井煤样。一氧化碳、甲烷和氮气的吸附数据是在澳大利亚北莱德的联邦科学与工业研究组织能源部通过自行搭建的高压重量吸附系统（HPGSS）获取的；等温温度为55°C，压力范围为0.1 - 16兆帕。所得的过量吸附等温线数据被拟合到修正的杜比宁-拉杜什克维奇等温线模型（M-DR）和一种新的杜比宁-拉杜什克维奇-亨利定律混合等温线模型（DR-HH）。本文提供的数据集不仅信息量丰富，还将有助于与现有及未来的数据进行比较，以及用于测试该领域其他研究人员在地质介质（尤其是煤层）中二氧化碳封存方面开发的其他吸附等温线模型。
