Vapor-liquid distribution of oil in coat liquefaction process

Koichi Ikeda, Seiichi Okada, Michiharu Mochizuki, Tetsuya Takeda, Kouji Sakawaki, Kenji Inokuchi, Hayashi Jun-Ichiro, Tadatoshi Chiba

Research output: Contribution to journalArticle

Abstract

Measurements and analyses were conducted on high-temperature and high-pressure vapor-liquid distribution in the hot separator and the reactor of a 1-ton/day coal liquefaction process supporting unit, which simulated the NEDOL process. The vapor/liquid molar ratio, measured for the individual fractions of coal-derived oil in the hot separator, decreased from 1 to 0.01 with an increase in the average boiling-point temperature from 373 to 798 K. The measured ratios generally coincided well with those calculated using the Soave-Redlich-Kwong equation, with a slight discrepancy for fractions having boiling point temperatures lower than ∼ 470 K. Based on the degree of concentration of the slurry, the fractional weight of vaporized oil was estimated to ≥ 0.7, depending on the reactor temperature and the feed ratio of gas/slurry. These results were used in operation and optimization of a 150-ton/day pilot plant for the NEDOL process.

Original languageEnglish
Number of pages1
JournalJournal of Chemical Engineering of Japan
Volume36
Issue number3
Publication statusPublished - Mar 1 2003
Externally publishedYes

Fingerprint

Liquefaction
Oils
Vapors
Boiling point
Liquids
Separators
Coal liquefaction
Temperature
Coal
Vapor pressure
Pilot plants
Chemical reactions
Gases

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

Ikeda, K., Okada, S., Mochizuki, M., Takeda, T., Sakawaki, K., Inokuchi, K., ... Chiba, T. (2003). Vapor-liquid distribution of oil in coat liquefaction process. Journal of Chemical Engineering of Japan, 36(3).

Vapor-liquid distribution of oil in coat liquefaction process. / Ikeda, Koichi; Okada, Seiichi; Mochizuki, Michiharu; Takeda, Tetsuya; Sakawaki, Kouji; Inokuchi, Kenji; Jun-Ichiro, Hayashi; Chiba, Tadatoshi.

In: Journal of Chemical Engineering of Japan, Vol. 36, No. 3, 01.03.2003.

Research output: Contribution to journalArticle

Ikeda, K, Okada, S, Mochizuki, M, Takeda, T, Sakawaki, K, Inokuchi, K, Jun-Ichiro, H & Chiba, T 2003, 'Vapor-liquid distribution of oil in coat liquefaction process', Journal of Chemical Engineering of Japan, vol. 36, no. 3.
Ikeda K, Okada S, Mochizuki M, Takeda T, Sakawaki K, Inokuchi K et al. Vapor-liquid distribution of oil in coat liquefaction process. Journal of Chemical Engineering of Japan. 2003 Mar 1;36(3).
Ikeda, Koichi ; Okada, Seiichi ; Mochizuki, Michiharu ; Takeda, Tetsuya ; Sakawaki, Kouji ; Inokuchi, Kenji ; Jun-Ichiro, Hayashi ; Chiba, Tadatoshi. / Vapor-liquid distribution of oil in coat liquefaction process. In: Journal of Chemical Engineering of Japan. 2003 ; Vol. 36, No. 3.
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