Method for producing superheavy oil emulsion fuel and fuel produ

Details Method for producing superheavy oil emulsion fuel and fuel produ Method for producing superheavy oil emulsion fuel and fuel produ

1997-05-23

1998-12-22

Johnson, Jerry D.

Fuel and related compositions

Liquid fuels

Emulsion fuel

44302, 2523115, C10L 132

Patent

active

058512454

ABSTRACT:
A method for producing a superheavy oil emulsion fuel comprising the steps of (i) preparing a liquid mixture comprising a superheavy oil, water, one or more nonionic surfactants having an HLB (hydrophilic-lipophilic balance) of 13 to 19, and optionally one or more stabilizers, and then agitating the resulting liquid mixture with a high shear rate of 1000/sec to 60000/sec, to give an oil-in-water (O/W) type emulsion fuel having a superheavy oil concentration of from 74 to 82% by weight; and (ii) adding at least one of ionic dispersants, and optionally water, to the emulsion fuel obtained in step (i), and then blending and agitating the resulting liquid mixture with a shear rate of 10/sec to 10000/sec, to give an oil-in-water (O/W) type emulsion fuel having a superheavy oil concentration of from 68 to 79% by weight. In step (i), the nonionic surfactants are contained in an amount of from 0.1 to 0.8% by weight of the emulsion fuel obtained in step (i), and the stabilizers are contained in an amount of from 0.001 to 0.5% by weight of the emulsion fuel obtained in step (i). In step (ii), the ionic dispersants are contained in an amount of from 0.01 to 0.5% by weight of the emulsion fuel obtained in step (ii).

REFERENCES:
patent: 4842616 (1989-06-01), Verhille
patent: 5024676 (1991-06-01), Moriyama et al.
patent: 5411558 (1995-05-01), Taniguchi et al.
patent: 5437693 (1995-08-01), Iizuka et al.
patent: 5551956 (1996-09-01), Moriyama et al.
patent: 5603864 (1997-02-01), Silva et al.

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