公开(公告)号：US20180134978A1

公开(公告)日：2018-05-17

申请号：US15788954

申请日：2017-10-20

Applicant: ExxonMobil Research and Engineering Company

Inventor： Eugine CHOI ,  Matthew W. BOLAND ,  Zhisheng GAO ,  Luca SALVI ,  Shamel MERCHANT ,  Bruce W. CRAWLEY

IPC: C10L10/10 ,  C10L1/06

Abstract: Naphtha boiling range compositions are provided that can have improved combustion properties (relative to the research octane number of the composition) in spark ignition engines and/or compression ignition engines. The improved combustion properties can be achieved by controlling the total combined amounts of n-paraffins and isoparaffins that include a straight-chain propyl group (R1—CH2—CH2—CH2—R2). For such a straight-chain propyl group, R2 can correspond to any convenient CxHy group that can appear in a paraffin or isoparaffin. R1 can correspond to a hydrogen atom, making the straight-chain propyl group a terminal n-propyl group; or R1 can correspond to any convenient CxHy group that can appear in a paraffin or isoparaffin.

公开(公告)号：US20180134975A1

公开(公告)日：2018-05-17

申请号：US15788917

申请日：2017-10-20

Applicant: ExxonMobil Research and Engineering Company

Inventor： Eugine CHOI ,  Matthew W. BOLAND ,  Zhisheng GAO ,  Luca SALVI ,  Shamel MERCHANT ,  Bruce W. CRAWLEY

IPC: C10L1/06 ,  C10L1/10 ,  C10L1/16

Abstract: Naphtha boiling range compositions are provided that can have improved combustion properties (relative to the research octane number of the composition) in spark ignition engines and/or compression ignition engines. The improved combustion properties can be achieved by controlling the total combined amounts of n-paraffins and isoparaffins that include a straight-chain propyl group (R1—CH2—CH2—CH2—R2). For such a straight-chain propyl group, R2 can correspond to any convenient CxHy group that can appear in a paraffin or isoparaffin. R1 can correspond to a hydrogen atom, making the straight-chain propyl group a terminal n-propyl group; or R1 can correspond to any convenient CxHy group that can appear in a paraffin or isoparaffin.

公开(公告)号：US20190062668A1

公开(公告)日：2019-02-28

申请号：US16108371

申请日：2018-08-22

Applicant: ExxonMobil Research and Engineering Company

Inventor： Zhisheng GAO ,  Luca SALVI ,  Eugine CHOI ,  Matthew W. BOLAND

IPC: C10M169/04 ,  C10M137/14 ,  C10M135/06 ,  C10M145/36 ,  C10M133/12 ,  C10M161/00

Abstract: An ashless lubricating oil having a lubricating oil base stock as a major component, and a mixture of (i) at least one ashless antiwear additive, (ii) at least one ashless detergent, and (iii) at least one aminic antioxidant, as minor components. The lubricating oil base stock is a monoester obtained by a) reacting one Guerbet alcohol of 8 to 20 carbon atoms with a Guerbet acid, a linear or branched acid of 6 to 20 carbon atoms or b) reacting one linear or branched alcohol with at least 6 to 20 carbon atoms with a Guerbet acid of 8 to 20 carbon atoms. The lubricating oil base stock is present in an amount from 30 to 99.8 wt. % of the oil. A method for improving oxidative stability and high temperature stability of a lubricating oil in an engine or other mechanical component lubricated with the lubricating oil by using the ashless lubricating oil.

公开(公告)号：US20190062667A1

公开(公告)日：2019-02-28

申请号：US16108352

申请日：2018-08-22

Applicant: ExxonMobil Research and Engineering Company

Inventor： Zhisheng GAO ,  Luca SALVI ,  Eugine CHOI ,  Matthew W. BOLAND

IPC: C10M169/04 ,  C10M137/14 ,  C10M135/06 ,  C10M145/36 ,  C10M133/12 ,  C10M161/00

Abstract: An ashless lubricating oil having a lubricating oil base stock as a major component, and a mixture of (i) at least one ashless antiwear additive, (ii) at least one ashless detergent, and (iii) at least one aminic antioxidant, as minor components. The lubricating oil base stock is a branched polyol ester. The lubricating oil base stock is present in an amount from about 30 to about 99.8 mass percent, based on the total mass of the ashless lubricating oil. A method for improving oxidative stability and high temperature stability of a lubricating oil in an engine or other mechanical component lubricated with the lubricating oil by using the ashless lubricating oil. The ashless lubricating oil is useful as a passenger vehicle engine oil (PVEO).