Supercritical water process integrated with visbreaker
AssigneeSaudi Arabian Oil Company
InventorsKi-Hyouk Choi, Mazin M. Fathi, Mohnnad H. Alabsi, Vinod Ramaseshan
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Abstract
An integrated upgrading process for upgrading a heavy oil, the process comprising the steps of introducing a heavy oil to a visbreaker unit; processing the heavy oil in the visbreaker unit to produce a visbreaker product stream; feeding the visbreaker product stream to a fractionator; separating the visbreaker product stream in the fractionator to produce a bottoms stream, a gas oil stream, a naphtha stream, and a gas product stream; feeding the bottoms stream to a supercritical water unit; and processing the bottoms stream in the supercritical water unit to produce an upgraded bottoms stream.
Claims2
A system for upgrading a heavy oil, the system comprising:
- a supercritical water unit, the supercritical water unit configured to process the heavy oil to produce an upgraded heavy oil;
- a mixer fluidly connected to the supercritical water unit and a visbreaker unit, the mixer configured to mix the entirety of the upgraded heavy oil with the entirety of a visbreaker product to produce a mixed product stream;
- a fractionator fluidly connected to the mixer, the fractionator configured to separate the mixed product stream to produce a bottom fraction;
- and
- a visbreaker unit fluidly connected to the fractionator, the visbreaker unit configured to process the bottom fraction to produce the visbreaker product.
Dependencies are inferred from the claim text.