English  |  正體中文  |  简体中文  |  Items with full text/Total items : 26988/38789
Visitors : 2358872      Online Users : 54
RC Version 4.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Adv. Search
LoginUploadHelpAboutAdminister

Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/40707

Title: Generation of hydrocarbon gases and CO2 from a humic coal: Experimental study on the effect of water, minerals and transition metals
Authors: Kwan-Hwa Su;Jun-Chin Shen;Ying-Ju Chang;Wuu-Liang Huang
Contributors: 國立臺灣海洋大學:應用地球科學研究所
Date: 2006-04
Issue Date: 2017-02-06T06:11:06Z
Publisher: Organic Geochemistry
Abstract: Abstract: The yields and composition of hydrocarbon gases and CO2 generated from a humic coal were experimentally determined using the confined pyrolysis technique with different lithological conditions simulated by adding a variety of minerals (haematite, siderite, pyrrhotite, gypsum, KCl salt) and transition metals (including iron, nickel and vanadium). The experiments were conducted at 340 and 360 °C for time durations ranging from 24 to 240 h. The amount of water in the absence of minerals has negligible effect on the hydrocarbon gas yields; whereas some mineral–water environments impose a small, but measurable influence on both the yields and composition of the generated gases. The experiments with vanadium generated the highest hydrocarbon gas yield, while those with siderite yielded the least; with the difference as high as 15 mol%. The hydrocarbon gas yields increase slightly in the order from runs with Fe2O3, Ni, Fe, and V, and this trend becomes more pronounced at higher maturity. The dryness of HC gas decreases and then increases with increasing maturity, whereas the i-C4/n-C4 isomer ratios progressively decrease with increasing maturity. The effects of most studied mineral matrices on these two ratios are insignificant, except the effect of Fe and haematite on the butane isomers. The effects of mineral environments with siderite, Fe, Ni and KCl on the variations of CO2 yields are significant: CO2 yield is highest in siderite and lowest in metallic iron or nickel environments. The effect of mineral environments on the variations of CO2 yields is more pronounced than that of hydrocarbon gases.
Relation: 37(4)
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/40707
Appears in Collections:[應用地球科學研究所] 期刊論文

Files in This Item:

File Description SizeFormat
index.html0KbHTML58View/Open


All items in NTOUR are protected by copyright, with all rights reserved.

 


著作權政策宣告: 本網站之內容為國立臺灣海洋大學所收錄之機構典藏,無償提供學術研究與公眾教育等公益性使用,請合理使用本網站之內容,以尊重著作權人之權益。
網站維護: 海大圖資處 圖書系統組
DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback