What is the uses of Decant Oil or clarified oil or slurry oil which is generated from the Catalytic Converter? What are the valuable chemicals recoverable for it? What is the different technology behind this to convert it to a useful fractions? Which company provides the technology?
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14/11/2018
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Arthur Morgan, Eloite, system.foxx@gmail.com
Piggy backing on the question, is it possible to process this slurry oil in solvent deasphalting units along with straight-run resid?
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26/10/2017
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Victor Scalco, General Atomics Electromagnetic Systems (GA-EMS), Vic.Scalco@ga.com
In reading your question it might be better to answer what is the best use for clarified slurry oil and how do I get the most return for the investment of clarifying this product. IMO 2020 will put a damper on the profitability of the slurry due to the restrictions on Sulphur content, however with the proper technology in place the markets are still valid.
1. Marine Fuel/ Bunker Fuel
2. Carbon Black - Specialty Black
3. Refinery Fuel
4. Carbon Fiber - Anode Pitch Coke
While mechanical filtration in the past has shown some efficiency unfortunately many of these units are failing in RFCC and new heavier FCC processes. Due to this other methods such as electrostatic slurry separation "Gulftronic" have become more popular. This technology is currently recommended by UOP and Axens for main column bottom separation below 100ppm. There is also MOTT filtration which uses sintered metal cartridges but mechanical filtration is heavy on maintenance cost. There are papers going into more detail on the topic in Hydrocarbon Processing. "Making money in a Slurry."
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17/08/2017
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Lindsay McRae, Pall Corporation, Lindsay_McRae@pall.com
Decant Oil or FCC Slurry is mostly used for Bunker Fuel Oil for ships however to meet shipping ECA (Emission Control Areas) specifications for aluminium and silicon the slurry oil may need to be first filtered to remove FCC catalyst fines which contaminates the FCC Slurry Oil & contains aluminium and silicon.
FCC Slurry oil may also be used as a feedstock for Carbon Black or Carbon Fibre production and there is usually a specification to be met for total suspended solids if refiners want to upgrade & sell FCC Slurry Oil as a feedstock to the petrochemical industry.
For over 25 years Pall Corporation has provided automatic filter systems for removing FCC catalyst fines and coke from FCC Slurry oil from 2,000-10,000 ppmw to less than 100 ppmw to meet current Slurry Oil specifications.
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16/08/2017
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Eric Vetters, ProCorr Consulting Services, ewvetters@yahoo.com
Historically it has gone primarily into carbon black and fuel oil markets. Its low viscosity and relatively low S content make it a good fuel oil blend stock although changing fuel oil S specs may require hydrotreating in the future. Hydrotreating slurry also increases its crackibility when recycled back to the FCC.
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16/08/2017
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Sridhar Balakrishnan, Bharat Oman Refineries Limited , laksrid@yahoo.com
Clarified Slurry Oil can be recycled with FCC feed to an extent to product more lighters i.e LPG and
Gasoline . It can be used as N0.6 Fuel Oil known as bunker C fuel . Can be diverted to Delayed Coker Unit as a feed stock to product high quality grade coke. Also send to hydrocracker as a feedstock to convert part of slurry oil into useful lighter products. By Increasing the density, it gives good CBFS ( carbon black feed stock ) , which has high market value. Also it can blended with visbreaker unit bottom as blending stock for fuel oil production , which increases the stability of fuel oil.
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16/08/2017
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Eric Hennings, Technip Stone & Webster, EHennings@technip.com
Highly aromatic slurry is candidate for carbon black manufacture.
Another is a candidate for anode-grade electrodes.
Finally, excess slurry oil can be blended into heavy fuel oil.
While certain properties are appropriate in evaluating the destination, solids removal is often a significant requirement.
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16/08/2017
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Ralph Ragsdale, Ragsdale Refining Courses, ralph.ragsdale@att.net
The common uses are:
• Heavy fuel oil
• Carbon black feed
• Added feed to resid hydrocracker to retard asphaltenes precipitation
• Blocked out runs on the delayed coker for premium coke production
• Coker feed to just dispose of it.
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