タイトルヨミ | クウキ ネンショウホウ ニヨル ケロジェン イオウ ノウド ノ ソクテイ
|
日本語以外のタイトル | Measurement of kerogen sulphur concentration by combustion method in air
|
ファイル | |
言語 |
日本語
|
著者 |
市場 健二
鈴木 徳行
|
内容記述(抄録等) | Determination of total sulphur concentration of kerogen by combustion method in air is examined. The combustion of sample was carried out at 950℃ for 10 min under flowing air of 2500 ml/min. Most sulphurs in sample are oxidized to be SO_2 by combustion. The sulphur dioxide is further trapped by H_2O_2 solution (ca. 3.0%) and reacted with H_2O_2 to be H_2SO_4. The determination of [SO^(2-)_4] in H_2O_2 solution by ion chromatograph and pH meter are examined, respectively. The direct determination of [SO^(2-)_4]by ion chromatograph is one of the most useful and precise analytical methods. While, the determination of [SO^(2-)_4] by pH meter ls based on the possible liner relationship between [H^+] and [SO^(2-)_4] in H_2O_2 solution. Kerogen samples often contain significant amount of halogen anions such as Cl^- and F^- because HCl and HF are generally used for the kerogen extraction. Another halogen anion, Br^-, can be significantly present in kerogen sample when we adopt ZnBr_2 solution as heavy liquid to separate neoformed fluorides and silicate minerals from HF/HCl treated samples. Those halogen anions can induce significant H^+ and obstruct the determination of [SO^(2-)_4]. However, results of [SO^(2-)_4] determination by pH meter for sufficiently washed kerogens are consistent well with ones by ion chromatography. If we sufficiently remove those halogen anions from kerogen samples, the indirect measurement of [SO^(2-)_4] by pH meter can be a fast and useful method to determine kerogen sulphur concentration.
|
掲載誌名 |
島根大学地質学研究報告
|
巻 | 10
|
開始ページ | 75
|
終了ページ | 80
|
ISSN | 0287816X
|
発行日 | 1991-07-30
|
NCID | AN00054980
|
DOI(SelfDOI) | |
出版者 | 島根大学理学部地質学教室
|
出版者別表記 | Department of Geology, Faculty of Science, Shimane University
|
資料タイプ |
紀要論文
|
ファイル形式 |
PDF
|
著者版/出版社版 |
出版社版
|
部局 |
総合理工学部
|
備考 | 1-11 / 1982-1992
島田昱郎教授退官記念論誌集
|
他の一覧 |