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Method for preparing water coke slurry fuel by using oily water

A technology for oily sewage and water coke slurry, applied in the field of resource utilization, can solve the problems of increasing the difficulty of treatment, poor sewage treatment, polluting the environment, etc. Effect

Inactive Publication Date: 2010-11-17
SHANDONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These chemical additives and microemulsified oil have a stable structure, so they are relatively difficult to degrade, which increases the difficulty of handling
Poor treatment of these sewage not only pollutes the environment, but also wastes resources; if it is properly treated, it will save energy and protect the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Add 68kg of Liaohua petroleum coke powder that has passed 200 mesh sieves and account for more than 80% in the grinder equipped with stirring equipment, 31kg of well washing sewage with an oil content of 0.37%, 1kg of dispersant, and filter after stirring and mixing for 30min to obtain the present invention. Water coke slurry fuel.

[0015] The dispersant is sodium polystyrene sulfonate, sodium naphthalene sulfonate formaldehyde condensate, polyethylene glycol and sodium carbonate, and the raw material component weight percent is respectively 40% sodium polystyrene sulfonate, sodium naphthalene sulfonate formaldehyde condensate 30%, polyethylene glycol 20% and sodium carbonate 10%.

[0016] The viscosity of the prepared water coke slurry is 1180mPa·s, the fluidity is good, and there is no delamination or hard precipitation after 20 days of storage.

Embodiment 2

[0018] Add 67kg of Liaohua petroleum coke powder with a 200-mesh sieve accounting for more than 80%, 32kg of sewage produced after demulsification of crude oil with an oil content of 0.24%, and 1kg of dispersant in a grinder equipped with stirring equipment, stir and mix for 30 minutes and then filter. The water coke slurry fuel of the present invention is obtained.

[0019] The dispersant is sodium polystyrene sulfonate, sodium naphthalene sulfonate formaldehyde condensate, polyethylene glycol and sodium carbonate, and the raw material component weight percent is respectively 35% of sodium polystyrene sulfonate, sodium naphthalene sulfonate formaldehyde condensate 45%, polyethylene glycol 10% and sodium carbonate 10%.

[0020] The prepared water coke slurry has a viscosity of 1350mPa·s, good fluidity, and no delamination or hard precipitation occurs after storage for 20 days.

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Abstract

The invention relates to a method for preparing a novel environment-friendly water coke slurry fuel by using the resource recycling technology of combining oily water and water coke slurry. The novel environment-friendly water coke slurry fuel comprises the following raw material components in percentage by weight: 62 to 72 percent of petroleum coke powder of which over 80 percent of the petroleum coke powder passes a 200-mesh sieve, 28 to 38 percent of oily water and 0.5 to 1.5 percent of dispersant, wherein the components are mixed and stirred at normal temperature under normal pressure to form high-dispersion stable slurry. The method has the advantages of simple operation, low energy consumption and low cost; the prepared water coke slurry has good fluidity and strong stability, does not need to add a stabilizing agent, fully meets the requirement of a boiler for fuel combustion, realizes the resource recycle of the oily water, reduces the treatment cost of the oily water, and has good market prospect and popularization value.

Description

Technical field: [0001] The invention relates to a resource utilization technology for combining oily sewage and water coke slurry. Specifically, the oily sewage and petroleum coke powder are mixed and stirred under the action of a small amount of dispersant to prepare slurry fuel. Background technique: [0002] With the exploration, development and production of land and offshore oil and natural gas, the amount of oily sewage is also increasing year by year. Oily sewage in oil fields mainly includes oil production sewage, drilling and well washing sewage, and sewage produced after crude oil demulsification. These sewage not only contain high oil concentration, but also contain a large amount of suspended solids and other pollutants. At present, oil production in oil fields has entered the stage of secondary and tertiary oil recovery, which makes the oily sewage in oil fields contain a large amount of chemical additives and microemulsified oil particles. These chemical add...

Claims

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Application Information

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IPC IPC(8): C10L1/32C10L1/24C10L1/198
Inventor 高洪阁张大松王涛贺龙
Owner SHANDONG UNIV OF SCI & TECH
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