ENHANCED METHODS FOR SOLVENT DEASPHALTING OF HYDROCARBONS
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United States of America Patent
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Issued Date -
Feb 11, 2016
app pub date -
Jul 22, 2015
filing date -
Oct 19, 2011
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Improvements to open-art Solvent Deasphalting (SDA) processes have been developed to reduce capital and operating costs for processing hydrocarbon streams are provided whereby open art SDA scheme is modified to include appropriately placed mixing-enabled precipitators (MEP's) to reduce solvent use requirements in an asphaltene separation step and to increase overall reliability for SDA processes, particularly suitable for Canadian Bitumen. When integrated with a mild thermal cracker, the improved SDA configuration further improves crude yield to be pipeline-ready without additional diluent and for use to debottleneck existing facilities such as residue hydrocrackers and coking units.
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