Process for producing petroleum residuum-water slurry
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United States of America Patent
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-
Feb 6, 2001
Grant Date -
N/A
app pub date -
Mar 25, 1999
filing date -
Mar 27, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Use is made of a high-speed agitator comprising vessel 2 rotated at a low speed and bladed agitating element 3 rotated at a high speed in direction reverse to that of the vessel 2, the bladed agitating element 3 having a rotary axis arranged parallel to, and located apart from, the rotary axis of the vessel 2. Petroleum residuum such as solvent deasphalting residuum is agitated together with a grinding auxiliary and water in the high-speed agitator so that the petroleum residuum is ground. Thereafter, a dispersant is added thereto to form a slurry and the viscosity thereof is adjusted to a given value. A stabilizer is further added thereto to obtain a stable slurry. The dispersant and the stabilizer may be placed in the high-speed agitator prior to the grinding of the petroleum residuum. Thus, there is provided a process in which a high-concentration petroleum residuum-water slurry with a desirable particle size distribution, being cheap and highly stable, can easily be obtained by a one-stage grinding.
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