公开(公告)号：US10208260B2

公开(公告)日：2019-02-19

申请号：US15608070

申请日：2017-05-30

Applicant: ExxonMobil Research and Engineering Company

Inventor： Stuart S. Shih ,  Timothy L. Hilbert ,  Anastasios I. Skoulidas ,  Bryan A. Patel ,  Michael R. Chuba ,  Sean C. Smyth ,  Mohan Kalyanaraman

IPC: C10G65/02 ,  C10G45/02 ,  C10G45/62 ,  C10G45/64 ,  C10G65/04 ,  B01J8/00 ,  B01J8/18 ,  B01J8/24 ,  B01J29/70 ,  B01J29/72 ,  B01J23/40 ,  B01J29/74

Abstract: Systems and methods are provided for catalytically dewaxing a diesel boiling range feed. In some aspects, catalytic dewaxing can be performed at low hydrogen treat gas rates and/or low hydrogen purity conditions. In other aspects, the systems and methods can allow for distillate dewaxing while reducing or minimizing the amount of equipment required.

公开(公告)号：US10053639B2

公开(公告)日：2018-08-21

申请号：US14506790

申请日：2014-10-06

Applicant: ExxonMobil Research and Engineering Company

Inventor： Stuart S. Shih ,  Xiaochun Xu ,  William J. Novak ,  Carlos N. Lopez ,  Timothy Lee Hilbert ,  Stephen John McCarthy

IPC: C10G67/00 ,  C10G67/02 ,  C10G45/02 ,  C10G45/06 ,  C10G45/08 ,  C10G45/10 ,  C10G45/12 ,  C10G45/62 ,  C10G45/64 ,  C10G65/04

CPC classification number: C10G67/02 ,  C10G45/02 ,  C10G45/06 ,  C10G45/08 ,  C10G45/10 ,  C10G45/12 ,  C10G45/62 ,  C10G45/64 ,  C10G65/043 ,  C10G2300/1051 ,  C10G2300/1055 ,  C10G2300/1059 ,  C10G2300/202 ,  C10G2400/04 ,  C10G2400/08

Abstract: Methods are provided for dewaxing a distillate fuel boiling range feed to improve one or more cold flow properties of the distillate fuel feed, such as cloud point, where the distillate fuel feed is fractionated to produce both a jet fuel product and an arctic diesel fuel product. The decrease of cloud point is achieved by using a feedstock having a concentration of nitrogen of less than about 50 wppm and a concentration of sulfur of less than about 15 wppm. Further, the dewaxing catalyst may have a reduced content of hydrogenation metals, such as a content of Pt or Pd of from about 0.05 wt % to about 0.35 wt %. A distillate fuel feed can be dewaxed to achieve a desired cloud point differential using a reduced metals content dewaxing catalyst under the same or similar conditions to those required for a dewaxing catalyst with higher metals content.

公开(公告)号：US09028673B2

公开(公告)日：2015-05-12

申请号：US13668439

申请日：2012-11-05

Applicant: ExxonMobil Research and Engineering Company

Inventor： Stuart S. Shih ,  Berne K. Stober

IPC: C10G65/02 ,  C10G65/12 ,  C10L1/08 ,  C10G65/10 ,  C10G45/60 ,  C10G65/04 ,  B01D3/14

CPC classification number: C10G65/12 ,  B01D3/141 ,  C10G45/60 ,  C10G65/043 ,  C10G65/10 ,  C10G2300/202 ,  C10G2300/304 ,  C10G2300/4006 ,  C10G2300/4012 ,  C10G2300/4018 ,  C10G2400/02 ,  C10G2400/04 ,  C10G2400/08 ,  C10L1/08

Abstract: Systems and methods are provided for producing at least one low sulfur distillate fuel product with improved low temperature properties. A potential distillate fuel feed is initially hydrotreated to reduce sulfur and nitrogen levels in the feed to desired amounts. The hydrotreated effluent is then fractionated to form several fractions, including a light diesel/distillate fraction and a heavy diesel fraction. The heavy diesel fraction is then dewaxed to improve the cold flow properties of the heavy diesel fraction. The dewaxed heavy diesel fraction can be combined with the light diesel fraction, or the dewaxed heavy diesel fraction can be fractionated as well. Optionally, the heavy diesel fraction is dewaxed under conditions effective for producing a dewaxed fraction with a cloud point that is less than or equal to the cloud point of the light diesel/distillate fraction.

Abstract translation: 提供了用于生产具有改进的低温性能的至少一种低硫馏分燃料产品的系统和方法。 首先加氢处理潜在的馏出物燃料进料，以将进料中的硫和氮水平降低至所需量。 然后将加氢处理的流出物分馏以形成几个馏分，包括轻柴油/馏出物馏分和重柴油馏分。 然后将重质柴油馏分脱蜡以改善重柴油馏分的冷流特性。 脱蜡重柴油馏分可与轻柴油馏分组合，也可将脱蜡重柴油馏分分馏。 任选地，重柴油馏分在有效产生浊点小于或等于轻柴油/馏出馏分的浊点的脱蜡馏分的条件下脱蜡。

公开(公告)号：US20130112594A1

公开(公告)日：2013-05-09

申请号：US13668439

申请日：2012-11-05

Applicant: ExxonMobil Research and Engineering Company

Inventor： Stuart S. Shih ,  Berne K. Stober

IPC: C10G65/12 ,  C10G65/10

CPC classification number: C10G65/12 ,  B01D3/141 ,  C10G45/60 ,  C10G65/043 ,  C10G65/10 ,  C10G2300/202 ,  C10G2300/304 ,  C10G2300/4006 ,  C10G2300/4012 ,  C10G2300/4018 ,  C10G2400/02 ,  C10G2400/04 ,  C10G2400/08 ,  C10L1/08

Abstract: Systems and methods are provided for producing at least one low sulfur distillate fuel product with improved low temperature properties. A potential distillate fuel feed is initially hydrotreated to reduce sulfur and nitrogen levels in the feed to desired amounts. The hydrotreated effluent is then fractionated to form several fractions, including a light diesel/distillate fraction and a heavy diesel fraction. The heavy diesel fraction is then dewaxed to improve the cold flow properties of the heavy diesel fraction. The dewaxed heavy diesel fraction can be combined with the light diesel fraction, or the dewaxed heavy diesel fraction can be fractionated as well. Optionally, the heavy diesel fraction is dewaxed under conditions effective for producing a dewaxed fraction with a cloud point that is less than or equal to the cloud point of the light diesel/distillate fraction.

Abstract translation: 提供了用于生产具有改进的低温性能的至少一种低硫馏分燃料产品的系统和方法。 首先加氢处理潜在的馏出物燃料进料，以将进料中的硫和氮水平降低至所需量。 然后将加氢处理的流出物分馏以形成几个馏分，包括轻柴油/馏出物馏分和重柴油馏分。 然后将重质柴油馏分脱蜡以改善重柴油馏分的冷流特性。 脱蜡重柴油馏分可与轻柴油馏分组合，也可将脱蜡重柴油馏分分馏。 任选地，重柴油馏分在有效产生浊点小于或等于轻柴油/馏出馏分的浊点的脱蜡馏分的条件下脱蜡。