LOW MASS LOSS ASPHALTS FROM HEAVY CRUDE OILS

    公开(公告)号:WO2023039336A1

    公开(公告)日:2023-03-16

    申请号:PCT/US2022/075044

    申请日:2022-08-17

    Abstract: Systems and methods are provided for forming soft asphalt compositions with improved properties that are derived from distillation of a crude oil (or mixture of crude oils) having an API gravity of 24° or less. In order to form a target asphalt composition from a feedstock having an API gravity of 24° or less, a distillation is performed where at least two fractions are generated that have a T10 distillation point of 430°C or more. A first fraction can correspond to a distillate fraction having a T10 distillation 2021eml65-usoint of 430°C or more. A second fraction can correspond to a bottoms fraction. Disproportionate blending can then be used to combine a portion of the first fraction with a portion of the second fraction. By using disproportionate blending of a distillate fraction and a bottoms fraction, an asphalt product fraction can be formed that has both a flash point of 270°C or more and a KV100 between roughly 700 cSt and 1200 cSt.

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