Oil Refinery Provides Spent Caustic Soda to Lead Refinery
Summary
Shell generates approximately 3300 tonnes/year of spent caustic soda, two different types of: one containing phenols (10% phenolic) and one containing sodium napthenate at around 4-6% concentration which is used to remove mercaptans from propane, butane and gasoline. In January 2001, Nova Pb started using the spent caustic instead of calcium carbonate that is used in the process as a desulphurising and fluxing agent.
Industry
| Industry Sector |
Specific Industry |
| petroleum sector |
- oil refinery producing a range of petroleum products such as liquefied petroleum gases, low sulphur gasoline, distillates, diesel, jet fuel, lubricating oils, waxes, heavy fuel oils and bitumen
|
| mining and minerals sector |
- integrated lead recycling facility
|
Region
Montreal, Quebec, Canada
Applied Technologies
None.
Triple Bottom Line Aspects (direct at operational level)
Economic |
- cost savings through the replacement of calcium carbonate (limestone)
- cost saving through the eliminated need of spent caustic soda disposal
|
Environment |
- reduced mining requirements for limestone
|
Social |
|
Additional Comments
None.
References
- Dias, S & Yates, R (2001) "Advancing Cooperative By-Product Synergy Programs Between Canada, Mexico and USA", Hatch, Canada, Retrieved from: http://www.hatch.ca/Sustainable_Development/Projects/advancing_coop_bps_programs.htm
- Hatch (2001) "Montreal By-Product Synergy Project", Hatch, Canada, Retrieved from: http://www.hatch.ca/Sustainable_Development/Articles/Montreal_bps.pdf
Last Update
20 July 2010
