公开(公告)号：US11518725B2

公开(公告)日：2022-12-06

申请号：US17325755

申请日：2021-05-20

Applicant: ExxonMobil Technology 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 ,  B01J21/04 ,  B01J23/06 ,  B01J37/16 ,  C07C29/154 ,  C10G11/04 ,  C10G11/18

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.

公开(公告)号：US11787758B2

公开(公告)日：2023-10-17

申请号：US17325707

申请日：2021-05-20

Applicant: ExxonMobil Technology and Engineering Company

Inventor： Nathaniel M. Eagan ,  Michael P. Lanci ,  George W. Huber ,  Paolo Andres Cuello Penaloza ,  J. Scott Buchanan

IPC: C07C41/09 ,  C07C29/34 ,  C07C1/24

CPC classification number: C07C41/09 ,  C07C1/24 ,  C07C29/34 ,  C07C29/34 ,  C07C31/12 ,  C07C29/34 ,  C07C31/125 ,  C07C41/09 ,  C07C43/04

Abstract: Provided are two-stage processes by which primary alcohols such as ethanol or 1-butanol are converted into distillate-range ethers and olefins utilizing Guerbet coupling followed by intermolecular dehydration. The ethers can be used, for example, as cetane-improvers in diesel fuel, while the olefins can be hydrogenated to afford paraffins.