公开(公告)号：US20210302371A1

公开(公告)日：2021-09-30

申请号：US17205528

申请日：2021-03-18

Applicant: ExxonMobil Research and Engineering Company

Inventor： Ashley M. Wittrig ,  Kuangnan Qian ,  Thomas R. Fredriksen

IPC: G01N27/626 ,  H01J49/16 ,  G01N1/38 ,  H01J49/38

Abstract: A method for detecting and analyzing olefins in petroleum by electrospray ionization mass spectrometry can include obtaining a hydrocarbon sample comprising at least about 90 wt % of saturate compounds; producing a solution comprising the hydrocarbon sample and a metal salt, the metal salt comprising a metal ion; forming olefin-metal ion complexes by electrospray ionization; and detecting the olefin-metal ion complexes using mass spectrometry.

公开(公告)号：US20190241707A1

公开(公告)日：2019-08-08

申请号：US16366224

申请日：2019-03-27

Applicant: ExxonMobil Research and Engineering Company

Inventor： Virginia M. Reiner ,  Nabila Brabez ,  Ross Mabon ,  Ashley M. Wittrig

IPC: C08H7/00 ,  C10M159/02 ,  C08L97/00 ,  C07G1/00

CPC classification number: C08H6/00 ,  C07G1/00 ,  C08L97/005 ,  C10M159/02 ,  C10M2203/1006 ,  C10M2209/12 ,  C10N2230/10

Abstract: Technical lignin compositions and pyrolysis methods for forming such technical lignin compositions from pyrolyzed biomass are provided. The technical lignin compositions can include at least about 50 wt % phenolic polymers and/or at least about 75 wt % combined phenolic monomers and phenolic polymers. In some aspects, less than about 50 wt % of the linkages between benzylic units in the phenolic polymers and/or in the composition can correspond to β-O-4 linkages. At least about 50 wt % of the hydroxyl groups in the composition can correspond to phenolic hydroxyl groups. At least about 60 wt % of the phenolic hydroxyl groups and/or phenolic ether groups can correspond to phenolic hydroxyl groups and/or phenolic ether groups in an ortho position relative to at least one substituent.

公开(公告)号：US20210363080A1

公开(公告)日：2021-11-25

申请号：US17325755

申请日：2021-05-20

Applicant: ExxonMobil Research and Engineering Company

Inventor： Peter H. Galebach ,  Michael P. Lanci ,  George W. Huber ,  Wenzhao Wu ,  Ashley M. Wittrig ,  Nathaniel M. Eagan ,  Paolo Andres Cuello Penaloza ,  J. Scott Buchanan

IPC: C07C29/151 ,  C10G11/04 ,  B01J21/04 ,  B01J23/06 ,  C10G11/18 ,  B01J37/16 ,  C07C29/154

Abstract: Processes for producing alcohols from biomass are provided. The processes utilize supercritical methanol to depolymerize biomass with subsequent conversion to a mixture of alcohols. In particular the disclosure relates to continuous processes which produce high yields of alcohols through recycling gases and further employ dual reactor configurations which improve overall alcohol yields. Processes for producing higher ethers and olefins from the so-formed alcohols, through alcohol coupling and subsequent dehydration are also provided. The resulting distillate range ethers and olefins are useful as components in liquid fuels, such as diesel and jet fuel.