SYSTEMS AND METHODS FOR PRODUCING A CRUDE PRODUCT
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United States of America Patent
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Nov 19, 2015
app pub date -
May 15, 2014
filing date -
May 15, 2014
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Abstract
Systems and methods for hydroprocessing heavy oil feedstocks are disclosed. The process employs a plurality of contacting zones operating under hydrocracking conditions and at least one separation zone to convert at least a portion of the heavy oil feedstock to lower boiling hydrocarbons, forming upgraded products. The first contacting zone consists of one or more ebullated bed reactors. Most of the metals in the heavy oil feed are converted and adsorbed on the ebullated bed catalyst and can be removed during catalyst replacement. The second contacting zone consists of one or more slurry phase reactors. The slurry phase reactor can be operated at higher temperature to achieve higher conversion.
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