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公开(公告)号：US10995290B2
公开(公告)日：2021-05-04
申请号：US16716875
申请日：2019-12-17
Applicant: ExxonMobil Research and Engineering Company
Inventor： Timothy J. Anderson , Erin R. Fruchey , Suzanne R. Golisz , Kenneth C. H. Kar , Sheryl B. Rubin-Pitel
Abstract: Marine fuel compositions that are low sulfur and have improved wax flow viscosity are disclosed. An example marine fuel composition may have the following enumerated properties: a sulfur content of about 0.50% or less by weight of the marine fuel composition; a density at 15° C. of about 0.86 g/cm3 to about 1.01 g/cm3; a kinematic viscosity at 50° C. of about 1 centistoke to about 700 centistokes; and a ratio of kinematic viscosity to wax flow viscosity of greater than 1, wherein the wax flow viscosity is determined using a minimum operating viscosity of about 8 centistokes at 50° C.
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Patent Agency Ranking
公开(公告)号：US20210246391A1
公开(公告)日：2021-08-12
申请号：US17244222
申请日：2021-04-29
Applicant: ExxonMobil Research and Engineering Company
Inventor： Timothy J. Anderson , Erin R. Fruchey , Suzanne R. Golisz , Kenneth C. H. Kar , Sheryl B. Rubin-Pitel
IPC: C10L1/08
Abstract: Provided are marine fuel compositions having acceptable wax behavior. In one form, the marine fuel composition has the following enumerated properties: a kinematic viscosity at 50° C. of about 5 cSt to about 700 cSt; a wax endpoint temperature of less than about 100° C.; and a ratio of kinematic viscosity at 100° C. to operating viscosity greater than 1, wherein the operating viscosity is at least about 2 cSt. The marine fuel composition exists in a liquid phase with essentially all the wax in the composition melted (essentially free of solid wax) prior to fuel injection into a marine engine.
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公开(公告)号：US20200291317A1
公开(公告)日：2020-09-17
申请号：US16716875
申请日：2019-12-17
Applicant: ExxonMobil Research and Engineering Company
Inventor： Timothy J. Anderson , Erin R. Fruchey , Suzanne R. Golisz , Kenneth C. H. Kar , Sheryl B. Rubin-Pitel
Abstract: Marine fuel compositions that are low sulfur and have improved wax flow viscosity are disclosed. An example marine fuel composition may have the following enumerated properties: a sulfur content of about 0.50% or less by weight of the marine fuel composition; a density at 15° C. of about 0.86 g/cm3 to about 1.01 g/cm3; a kinematic viscosity at 50° C. of about 1 centistoke to about 700 centistokes; and a ratio of kinematic viscosity to wax flow viscosity of greater than 1, wherein the wax flow viscosity is determined using a minimum operating viscosity of about 8 centistokes at 50° C.
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公开(公告)号：US11099144B2
公开(公告)日：2021-08-24
申请号：US16716941
申请日：2019-12-17
Applicant: ExxonMobil Research and Engineering Company
Inventor： Erin R. Fruchey , Suzanne R. Golisz , Kenneth C. H. Kar , Sheryl B. Rubin-Pitel
Abstract: Fuel compositions that are low sulfur and have adequate combustion quality are disclosed. An example fuel composition that is low sulfur may have the following enumerated properties: a sulfur content of about 0.50% or less by weight of the fuel composition; a calculated carbon aromaticity index of about 870 or less; a density at 15° C. of about 900 kg/m3 to about 1,010 kg/m3; a kinematic viscosity at 50° C. of about 100 centistokes to about 700 centistokes; and an estimated cetane number of about 7 or greater.
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公开(公告)号：US20210025841A1
公开(公告)日：2021-01-28
申请号：US16716986
申请日：2019-12-17
Applicant: ExxonMobil Research and Engineering Company
Inventor： Suzanne R. Golisz , Erin R. Fruchey , Kenneth C. H. Kar , Sheryl B. Rubin-Pitel , Madhavi Vadlamudi
Abstract: Systems and methods are provided for using differential scanning calorimetry (DSC) to predict properties of fuel compositions, such as marine fuel oils. It has been discovered that various features of the data plots generated by DSC can be correlated with properties of interest for marine fuel oil compositions. The fuel composition properties that can be predicted based on DSC include, but are not limited to, density; micro carbon residue; pour point; and estimated cetane number (ECN). This can include prediction of ECN for resid-containing fuel compositions. Using DSC to predict ECN can reduce or minimize the number of resid-containing fuel oil samples that require testing using the limited availability equipment required for the IP 541 method.
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公开(公告)号：US20210024842A1
公开(公告)日：2021-01-28
申请号：US16716941
申请日：2019-12-17
Applicant: ExxonMobil Research and Engineering Company
Inventor： Erin R. Fruchey , Suzanne R. Golisz , Kenneth C. H. Kar , Sheryl B. Rubin-Pitel
IPC: C10L1/04
Abstract: Fuel compositions that are low sulfur and have adequate combustion quality are disclosed. An example fuel composition that is low sulfur may have the following enumerated properties: a sulfur content of about 0.50% or less by weight of the fuel composition; a calculated carbon aromaticity index of about 870 or less; a density at 15° C. of about 900 kg/m3 to about 1,010 kg/m3; a kinematic viscosity at 50° C. of about 100 centistokes to about 700 centistokes; and an estimated cetane number of about 7 or greater.
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