石炭系中質油留分の粘度の推算
書誌事項
- タイトル別名
-
- Prediction of viscosity of middle oil fractions from coal-derived liquids.
説明
SYNOPSIS: -The viscosity of coal-derived oil is one of the fundamental data for the design of coal liquefaction plant. In this paper, the prediction method of the viscosity of middle oil fractions from coal-derived oils was investigated.<BR>SYNOPSIS: -The viscosity of coal-derived oil is one of the fundamental data for the design of coal liquefaction plant. In this paper, the prediction method of the viscosity of middle oil fractions from coal-derived oils was investigated.<BR>Coal tar distillates and coal liquefaction products were distilled into a number of fractions with narrow boiling range. The viscosity of each fraction was measured in the temperature range from 40 to 100°C by using a rotating rheometer. The logarithms of the viscosity varied linearly with the logarithms of the temperature for middle oil fractions in the mean boiling point (50 vol% off temperature) range from 200 to 375°C. Each of the straight line converged to a specific point (245°C, 0.42mPa.s) and the gradient of the straight line depended on the mean boiling point of each fraction.<BR>Using these results, the following equations were deduced for predicting the viscosity of the middle oil fractions from coal tar or coal liquefaction product at an arbitrary temperature.logη=2.389-log t/2.389-log t1 (0.3768+log η1)-0.3768 (1)<BR>logη= (2.389-log t) 10n-0.3768n=0.00350b50-0.8451 (2)<BR>The viscosity (mPa. s) at an arbitrary temperature t (°C) can be calculated from eq.(1) if the viscosity at a certain temperature t1 is known, or from eq.(2) if the 50 vol% off temperature tb50 (°C) of the fraction is known.<BR>A nomogram for the same purpose was also constructed. The estimation of the viscosity can be made using tb50 of the fraction, and a more accurate value will be obtained if the viscosity at a certain temperature is known.
収録刊行物
-
- 燃料協会誌
-
燃料協会誌 64 (6), 393-401, 1985
一般社団法人 日本エネルギー学会
- Tweet
詳細情報 詳細情報について
-
- CRID
- 1390282679273237760
-
- NII論文ID
- 130003824651
-
- ISSN
- 2185226X
- 03693775
-
- 本文言語コード
- ja
-
- データソース種別
-
- JaLC
- Crossref
- CiNii Articles
-
- 抄録ライセンスフラグ
- 使用不可
