![Thermal remediation of oil polluted sands from black tides: The fluidized bed option [An article from: Chemical Engineering Journal]](https://www.ebooknetworking.net/books/B00/0PK/bigB000PKI3KY.jpg)
Thermal remediation of oil polluted sands from black tides: The fluidized bed option [An article from: Chemical Engineering Journal]
Book Details
PublisherElsevier
ISBN / ASINB000PKI3KY
ISBN-13978B000PKI3K9
AvailabilityAvailable for download now
MarketplaceUnited States 🇺🇸
Description
This digital document is a journal article from Chemical Engineering Journal, published by Elsevier in 2007. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.
Description:
Following the oil spills due to the accidents involving the oil tankers Erika and Prestige on the Atlantic coast, thermal remediation of oil polluted sands in a fluidized bed was studied. A thermal process is proposed as an alternative to the physico-chemical washing that has been carried out with the Erika wastes. The study consists of: choice of the polluted wastes; air fluidization behavior of oil polluted sands in a cold fluidized bed; depollution characterization in a hot fluidized bed; design and engineering of an industrial scale furnace and investment and operating cost evaluation of such a remediation unit. Polluted sands were prepared for different combinations of sand particle diameter, oil and water content. Fluidizability of oil polluted sands was checked in a cold model fluidized bed facility. Hot tests showed that combustion started as soon as the fluidized bed temperature was equal to or higher than 700^oC. The remediation of the polluted sand was good in all the cases with a remaining pollution in the sand of about 50mg/kg. Flue gas emissions were within the regulatory limits. There was no danger of any ash fusion noticed even in the long duration tests. An industrial scale furnace was then designed based on the measured limits of fluidizability and the evaluated time necessary to get an almost complete remediation of the oil. Fluidized bed treatment costs were then evaluated and compared to the physico-chemical separation that has been used in the case of Erika oil spill and the thermal treatment in a rotating furnace. Fluidized bed combustion appeared to be one of the best options with a cost of only 80@?/t of polluted waste.
Description:
Following the oil spills due to the accidents involving the oil tankers Erika and Prestige on the Atlantic coast, thermal remediation of oil polluted sands in a fluidized bed was studied. A thermal process is proposed as an alternative to the physico-chemical washing that has been carried out with the Erika wastes. The study consists of: choice of the polluted wastes; air fluidization behavior of oil polluted sands in a cold fluidized bed; depollution characterization in a hot fluidized bed; design and engineering of an industrial scale furnace and investment and operating cost evaluation of such a remediation unit. Polluted sands were prepared for different combinations of sand particle diameter, oil and water content. Fluidizability of oil polluted sands was checked in a cold model fluidized bed facility. Hot tests showed that combustion started as soon as the fluidized bed temperature was equal to or higher than 700^oC. The remediation of the polluted sand was good in all the cases with a remaining pollution in the sand of about 50mg/kg. Flue gas emissions were within the regulatory limits. There was no danger of any ash fusion noticed even in the long duration tests. An industrial scale furnace was then designed based on the measured limits of fluidizability and the evaluated time necessary to get an almost complete remediation of the oil. Fluidized bed treatment costs were then evaluated and compared to the physico-chemical separation that has been used in the case of Erika oil spill and the thermal treatment in a rotating furnace. Fluidized bed combustion appeared to be one of the best options with a cost of only 80@?/t of polluted waste.
