公开(公告)号：US11781159B2

公开(公告)日：2023-10-10

申请号：US17068147

申请日：2020-10-12

Applicant: ExxonMobil Technology and Engineering Company

Inventor： Xiaozhou Zhang ,  Zarath M Summers ,  Partha Nandi ,  Mark P Hagemeister ,  Jihad M Dakka ,  Mohor Chatterjee ,  Vera Grankina

IPC: C12P7/42 ,  C07C51/377 ,  C12P19/02 ,  C12P19/14 ,  C13K1/00 ,  C12N1/16 ,  C07C51/367 ,  C07C59/01

CPC classification number: C12P7/42 ,  C07C51/377 ,  C12P19/02 ,  C12P19/14 ,  C13K1/00

Abstract: Hydroxycarboxylic acids may be biosynthesized from a carbonaceous feedstock and then isolated through forming and subsequently hydrolyzing an intermediate sophorolipid. After biosynthesizing a hydroxycarboxylic acid in a cell culture medium or otherwise providing a hydroxycarboxylic acid in a first aqueous medium, the hydroxycarboxylic acid and glucose may be converted into at least one sophorolipid by a suitable microorganism or an enzyme cocktail. The at least one sophorolipid may be then be separated from the cell culture medium or first aqueous medium and then hydrolyzed in a second aqueous medium to form the hydroxycarboxylic acid and glucose as free components separate from the cell culture medium or first aqueous medium. The hydroxycarboxylic acid is present as a phase separate from the second aqueous medium and the glucose remains in the second aqueous medium.

公开(公告)号：US11859133B2

公开(公告)日：2024-01-02

申请号：US17496644

申请日：2021-10-07

Applicant: ExxonMobil Technology and Engineering Company

Inventor： Wesley Sattler ,  Keith R. Hajkowski ,  Changmin Chun ,  Partha Nandi ,  Vera Grankina ,  Joseph E. Gatt ,  Ning Ma ,  Anastasios Skoulidas ,  William R. Gunther ,  Everett J. O'Neal

IPC: C10G11/04 ,  C10G11/22 ,  B01J35/04 ,  B01J21/04 ,  B01J23/755 ,  B01J38/12 ,  B01J8/00 ,  B01J23/00 ,  B01J23/10 ,  B01J23/46 ,  B01J29/74 ,  B01J35/00 ,  B01J35/10 ,  B01J37/03 ,  B01J37/04 ,  B01J37/08 ,  C01B3/38 ,  C01B3/40

CPC classification number: C10G11/04 ,  B01J8/008 ,  B01J21/04 ,  B01J23/002 ,  B01J23/10 ,  B01J23/464 ,  B01J23/755 ,  B01J29/74 ,  B01J35/0006 ,  B01J35/04 ,  B01J35/1009 ,  B01J35/1014 ,  B01J37/038 ,  B01J37/04 ,  B01J37/082 ,  B01J38/12 ,  C01B3/382 ,  C01B3/384 ,  C01B3/40 ,  C10G11/22 ,  B01J2208/00017 ,  B01J2208/00548 ,  C01B2203/0233 ,  C01B2203/0811 ,  C01B2203/1058 ,  C01B2203/1064 ,  C10G2300/70

Abstract: Systems and methods are provided for using size-reversing materials in vessels where direct heating is used to at least partially provide heat for reforming reactions under cyclic reforming conditions. An example of a size-reversing material is the combination of NiO and Al2O3. It has been discovered that size-reversing materials can undergo a phase transition that can assist with re-dispersion of metal at elevated temperatures. This can assist with maintaining catalytic activity for reforming over longer time periods in the presence of cyclic reforming conditions.