公开(公告)号：US20190002773A1

公开(公告)日：2019-01-03

申请号：US16064046

申请日：2016-12-23

申请人： SHELL OIL COMPANY

发明人： Diederik DE JONGE ,  Edward Julius CREYGHTON ,  Eduard Philip KIEFFER ,  Duurt RENKEMA

IPC分类号： C10G69/02 ,  C10M105/02 ,  C10M171/02

摘要： The present invention relates to a process for preparing a residual base oil from a hydrocarbon feed which is derived from a Fischer-Tropsch process, the process comprises the steps of: (a) providing a hydrocarbon feed which is derived from a Fischer-Tropsch process; (b) subjecting the hydrocarbon feed of step (a) to a hydrocracking/hydroisomerisation step to obtain an at least partially isomerised product; (c) separating at least part of the at least partially isomerised product as obtained in step (b) into one or more lower boiling fractions and a hydrowax residue fraction; (d) catalytic dewaxing of the hydrowax residue fraction of step (c) to obtain a highly isomerised product; (e) separating the highly isomerised product of step (d) into one or more light fractions and a isomerised residual fraction; (f) mixing of the isomerised residual fraction of step (e) with a diluent to obtain a diluted isomerised residual fraction; (g) cooling the diluted isomerised residual fraction of step (f) to a temperature between 0° C. and −60° C.; (i) subjecting the mixture of step (g) to a centrifuging step at a temperature between 0° C. and −60° C. to isolate the wax from the diluted isomerised residual fraction; (j) separating the diluent from the diluted isomerised residual fraction to obtain a residual base oil.

公开(公告)号：US20190276754A1

公开(公告)日：2019-09-12

申请号：US16346809

申请日：2017-11-02

申请人： SHELL OIL COMPANY

发明人： Gerrit Leendert BEZEMER ,  Duurt RENKEMA

IPC分类号： C10G73/44 ,  C10G73/36 ,  C10G2/00 ,  C10G7/00

摘要： A process for preparing normal paraffin involves separating a Fischer-Tropsch product stream to obtain first gaseous and liquid hydrocarbon streams. The first gaseous hydrocarbon stream is cooled and separated to obtain a second liquid hydrocarbon stream and a third liquid hydrocarbon stream, which are separated by atmospheric distillation, to obtain a normal paraffin fraction comprising 5 to 9 carbon atoms and a normal paraffin fraction comprising 10 to 35 carbon atoms. The normal paraffin fraction comprising 10 to 35 carbon atoms is separated by atmospheric distillation to obtain a normal paraffin fraction comprising 10 to 18 carbon atoms and a normal paraffin fraction comprising 19 to 35 carbon atoms. The fraction comprising 10 to 18 carbon atoms hydrogenated (a) and separated to obtain a normal paraffin comprising 10 to 13 carbon atoms and a normal paraffin comprising 14 to 18 carbon atoms.

公开(公告)号：US20170369794A1

公开(公告)日：2017-12-28

申请号：US15540266

申请日：2015-12-30

申请人： SHELL OIL COMPANY

发明人： Duurt RENKEMA ,  Johannes Leendert Willem Cornelis DEN BOESTERT ,  Eduard Philip KIEFFER

IPC分类号： C10G57/00 ,  C10M177/00 ,  B01D61/02 ,  C10M101/00 ,  B01J29/74 ,  B01D71/70

CPC分类号： C10G57/00 ,  B01D61/022 ,  B01D71/70 ,  B01D2311/2669 ,  B01D2319/025 ,  B01D2325/023 ,  B01J29/7469 ,  C10G31/11 ,  C10G45/58 ,  C10G67/14 ,  C10G2300/1022 ,  C10G2300/304 ,  C10G2400/10 ,  C10M101/00 ,  C10M177/00 ,  C10M2203/003 ,  C10M2205/173 ,  C10N2220/023 ,  C10N2270/00

摘要： A process for preparing a base oil fraction having a reduced cloud point from a hydrocarbon feed which is derived from a Fischer-Tropsch process is provided. The process comprises: subjecting a hydrocarbon feed which is derived from a Fischer-Tropsch process to a catalytic dewaxing treatment to obtain an at least partially isomerised product; separating at least part of the at least partially isomerised product into one or more light hydrocarbon fractions and one or more heavy base oil fractions; separating at least one of the heavy base oil fractions by means of a first membrane into a first permeate and a first retentate; separating at least part of the first permeate by means of a second membrane into a second permeate and a second retentate; and recovering the second permeate.