公开(公告)号：US20180237706A1

公开(公告)日：2018-08-23

申请号：US15879505

申请日：2018-01-25

Applicant: ExxonMobil Research and Engineering Company

Inventor： Michael T. SHOWAK ,  Monica A. ARBOLEDA-PENA ,  Bryan C. LU

IPC: C10G45/08

CPC classification number: C10G45/08 ,  C10G25/003 ,  C10G67/06 ,  C10G2300/1044 ,  C10G2300/202 ,  C10G2300/207 ,  C10G2300/308 ,  C10G2400/02

Abstract: Processes for desulfurizing a fluid catalytic cracker (FCC) naphtha feedstock, straight run naphtha feedstocks and combinations thereof are provided herein. Naphtha boiling range feed is passed over a silicon trap prior to being hydrodesulfurized in an olefin-retentive, catalytic naphtha hydrodesulfurization process. Processes for removing silicon from FCC naphtha feedstock, straight run naphtha feedstock and combinations thereof are also provided herein.

公开(公告)号：US20170015915A1

公开(公告)日：2017-01-19

申请号：US15202711

申请日：2016-07-06

Applicant: ExxonMobil Research and Engineering Company

Inventor： Mohsen N. HARANDI ,  John P. GREELEY ,  Michael R. CHUBA ,  Bryan C. LU

IPC: C10G65/16 ,  C10L1/06 ,  C10G65/00

CPC classification number: C10G65/16 ,  C10G17/00 ,  C10G29/00 ,  C10G45/02 ,  C10G65/00 ,  C10G67/16 ,  C10G2300/1044 ,  C10G2300/202 ,  C10G2400/02 ,  C10L1/06 ,  C10L2200/0415 ,  C10L2200/0423 ,  C10L2230/22 ,  C10L2270/023 ,  C10L2290/544 ,  C10L2290/60

Abstract: Systems and methods are provided for producing naphtha boiling range fractions having a reduced or minimized amount of sulfur and an increased and/or desirable octane rating and suitable for incorporation into a naphtha fuel product. A naphtha boiling range feed can be separated to form a lower boiling portion and a higher boiling portion. The lower boiling portion, containing a substantial amount of olefins, can be exposed to an acidic catalyst without the need for providing added hydrogen in the reaction environment. Additionally, during the exposure of the lower boiling portion to the acidic catalyst, a stream of light olefins (such as C2-C4 olefins) can be introduced into the reaction environment. Adding such light olefins can enhance the C5+ yield and/or improve the removal of sulfur from thiophene and methyl-thiophene compounds in the naphtha feed.

Abstract translation: 提供了用于生产具有减少或最小量的硫以及增加和/或期望的辛烷值并且适于掺入石脑油燃料产物中的石脑油沸程级分的系统和方法。 可以将石脑油沸程进料分离以形成较低沸点部分和较高沸点部分。 含有大量烯烃的低沸点部分可以暴露于酸性催化剂，而不需要在反应环境中提供添加的氢气。 此外，在低沸点部分暴露于酸性催化剂期间，可以将轻质烯烃（如C 2 -C 4烯烃）引入反应环境中。 加入这样的轻质烯烃可以提高石脑油进料中的C5 +产率和/或改善噻吩和甲基 - 噻吩化合物中硫的去除。