Title:
METHOD AND APPARATUS FOR INLINE DETECTION AND CONTROL OF DEGREE OF SWELLING OF COAL
Document Type and Number:
WIPO Patent Application WO/2017/067028
Kind Code:
A1
Abstract:
A method and device for inline detection and control of the degree of swelling of coal: transporting a portion of an oil-coal slurry completely swollen in an oil-coil slurry swelling tank (1) into a detection tank (4), calculating the liquid level height h1 = m/ρ·s·(a + 1) of unswollen pulverized coal in the detection tank (4) on the basis of the oil-to-coal mass ratio a, the density ρ of pulverized coal, the bottom area s of the detection tank (4), and the measured total mass m of the oil-coal slurry in the detection tank (4), then turning on a centrifuge (5) at the lower part of the detection tank (4) to rotate the oil-coal slurry until the oil and coal are stratified, and then measuring the liquid level height h2 of the coal stratum, thus determining the degree of swelling of coal Q = h2/h1, and operating normally the swelling tank (1) when Q is in an acceptable range, otherwise, turning on a steam pneumatic valve (7) controlling the swelling conditions of the oil-coal slurry swelling tank (1) to optimize operating conditions. The detection and control of the degree of swelling of coal per the present method ensure the conversion rate of coal and the yield and quality of a hydrogenated oil, and provide great effects and value for industrial promotion.
Inventors:
LI SUAN (CN)
DENG QINGYU (CN)
WANG KUNPENG (CN)
DENG QINGYU (CN)
WANG KUNPENG (CN)
Application Number:
PCT/CN2015/094141
Publication Date:
April 27, 2017
Filing Date:
November 09, 2015
Export Citation:
Assignee:
CATECH TECH CO LTD (CN)
International Classes:
C10G1/00; B01F1/00; G01N13/04; G01N15/08
Foreign References:
| CN102998429A | 2013-03-27 | |||
| CN102313756A | 2012-01-11 | |||
| RU1775668C | 1992-11-15 | |||
| US3187555A | 1965-06-08 | |||
| JPH09286987A | 1997-11-04 |
Other References:
CHANG, HONGYAN ET AL.: "Study on Thermally Dissolved Product Changes of Coal-Oil Slurry during Direct Coal Liquefaction", JOURNAL OF CHINA COAL SOCIETY, vol. 30, no. 1, 25 February 2005 (2005-02-25), pages 91
Attorney, Agent or Firm:
CATECH TECHNOLOGY CO., LTD. (CN)
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