RHEOIOGICAL AND SWELLING CHARACTERISTICS OF COAL-OIL SLURRY PREPARED FROM COAL AND INFERIOR OIL

Petroleum Processing and Petrochemicals ›› 2020, Vol. 51 ›› Issue (1): 80-85.

RHEOIOGICAL AND SWELLING CHARACTERISTICS OF COAL-OIL SLURRY PREPARED FROM COAL AND INFERIOR OIL

Research Institute of petroleum processing and coal liquefaction

Received:2019-05-21 Revised:2019-09-26 Online:2020-01-12 Published:2020-01-19
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Abstract

Abstract: The adaptability of coal to coal-oil slurry with different inferior oils during the process of coal-oil co-processing was investigated. The swelling degree and apparent viscosity of coal after different swelling time were investigated. The effect of swelling on rheology at pipeline transportation temperature was discussed. The results showed that the coal-oil slurry of the Baishihu coal and the >310℃ heavy oil showed shear thinning behavior; the slurry of vacuum residue and high temperature coal tar revealed non-continuous shear thickening trend; the system with shear thickening trendency were not suitable solvents for preparation of coal-oil slurry. The coal-oil slurry, using heavy oil as solvent, appeared swelling behavior at working temperature (80℃), and the apparent viscosity increased. The swelling behavior of the coal-oil slurry had little effect at a higher temperature (≥90 ℃)on rheological property.

Key words: inferior oil, coal -oil slurry, rheological property, swelling, apparent viscosity

CLC Number:

References

[1]许红星.我国能源利用现状与对策[J]. [J].中外能源, 2010, (1):3-14
[2]方向晨.国内外渣油加氢处理技术发展现状及分析[J]. [J].化工进展, 2011, (1):95-104
[3]瞿国华.延迟焦化工艺在重质/劣质原油加工过程中的地位和发展[J]. [J].炼油技术与工程, 2010, (6):1-7
[4]李梅.高聚物和离聚物在溶液中的缔合与聚集行为的研究[M]. 复旦大学, 1996.
[5]许建和，孙贤达，卢为琴等.红外光谱定量法研究醇在正烷烃中的氢键缔合[J].[J].物理化学学报,, 1992, (8):358-363
[6]张星, 李兆敏, 孙仁远等.聚合物流变性实验研究[J]. [J].新疆石油地质,, 2006, (27):197-199
[7]常鸿雁, ?张德祥, ?韩文煜.不同温度下煤在溶剂中的溶胀行为[J]. , 2004(8): 406-409.[J].华东理工大学学报, 2004, (8):406-409
[8]王勇.溶胀预处理对煤结构及煤液化性能的影响[M].
[9]Nishioka M.The associated molecular nature of bituminous coal[J]. Fuel, 1992(71): 941-948.
[10]Spears?D, Kispert?L, Piekara-Sady L.Low temperature swelling of argonne premium coal samples: effect on micropore shape and size[J]. Fuel, 1992(71): 1003-1014.
[11]刘颈松，冯杰.溶胀作用在煤结构与热解研究中的应用[J]. 煤炭转化，1998?(2): 1-4.
[12]Shinn J.From coal to single-stage and two-stage products: A reactive model of coal structure[J]. Fuel, 1984(9): 1187-1196.
[13]Sobkowiak?M, Painter P.Determination of the aliphatic and aromatic CH contents of coals by FT-i.r.: studies of coal extracts[J]. Fuel, ?1992, ?71(10): 1105-1125.
[14]Gorbaty M.Prominent frontiers of coal science: past,present and future[J].Fuel, 1994, ?73(12):1819-1828
[15]Shinn J.From coal to single-stage and two-stage products: A reactive model of coal structure[J]. Fuel, ?1984, ?63?(9): 1187-1196.
[16]王三跃, 曾凡桂, 田承圣等.分子模拟在煤大分子结构演化研究中的应用及进展[J]. 太原理工大学学报，2004，(35)9: 541-544.