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Chemical Injection |
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Agitation |
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Sludge Recovered as Oil |
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Delivering effective, environmentally friendly, cost-saving solutions to the oil industry |
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PetroFlow Solutions Pty Ltd © 2011 |
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Pre-Treatment |
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Tank cleaning requires coordinated planning to reduce downtime and eliminate the sludge using the proper amount of our organic chemical products. Heat, agitation, solvency and our products all play an important role in removing all the tank sludge.
How We Determine the Best Application Technique
· We determine the composite make-up of the sludge on the Tank bottom via sample analysis · We calculate the volume of the sludge build up in the tank · We measure the chemical composite make-up of the oil and API gravity via sample analysis
Application Techniques
· The tank needs cutter stock oil on top of the sludge to help prepare for the introduction and circulation of the chemical products. · Agitation is necessary to circulate the chemical mix and oil cutter stock for uniform contact of all the oil sludge. In many cases the circulation mechanism for agitation can be accomplished with existing tank equipment. · Heat can also be an important factor in the treatment. Heat will accelerate the process and lessen the time needed for agitation |
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Our system has been proven to: ü Allow tank cleaning to be conducted while storage tanks are in-line ü Provide full recovery of sludge as smooth homogeneous and pumpable oil, at production quality with API levels such that separators are not required. ü Provide clean water draw-off after settling ü Ensure that no manual or automated in-tank cleaning is required and that no person is required to enter a tank at any time in the process |
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In-Line Tank Clean-up and Sludge Treatment |
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Requirements |
Requirements Description |
Conventional Methods |
Our Chemical Solution |
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Recovery of sludge |
The amount of sludge that is recovered and sold as oil in the cleaning process |
low |
high |
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Setup and Mobilization : |
Scaffolding, cranes, cleaning equipment, air systems, high pressure equipment |
high |
low |
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Outside contractor cleaning costs |
Sub contracted costs of tank cleaning specialists |
high |
low |
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Lost production / margin: |
Shut-down time resulting in the loss of capacity while the tank is out of service. |
4 weeks |
one week but available if needed |
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Utility and operating costs: |
Consumption of steam, and electricity, caused from the actual cleaning process |
high |
very low |
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Chemical |
The chemicals used for treatment |
low |
medium |
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Re-processing/recovery costs: |
Cleaned-out sludge which requires re-processing. |
high |
low |
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Personnel costs: |
Additional operations and maintenance manpower, safety/work permitting). |
high |
low |
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Waste disposal: |
Processing of waste and disposal of hazardous waste products |
high |
low |
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Damage to tank equipment |
Repair of damages to the tank from cleaning such as coating and steam coils |
happens occasionally |
none |
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Legislation and regulations: |
Penalties and fines related to violation of environmental, health and safety regulations. |
happens occasionally |
none |
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Personnel liability: |
Injuries, illness resulting from hazardous working environment and exposure to toxic substances. |
happens occasionally |
none |