发明名称 |
Process for improving cold flow properties and increasing yield of middle distillate feedstock through liquid full hydrotreating and dewaxing |
摘要 |
Novel liquid-full process for improving cold flow properties and increasing yield of middle distillate fuel feedstock by hydrotreating and dewaxing the feedstock in liquid-full reactors. |
申请公布号 |
US9499750(B2) |
申请公布日期 |
2016.11.22 |
申请号 |
US201414208258 |
申请日期 |
2014.03.13 |
申请人 |
E I DU PONT DE NEMOURS AND COMPANY |
发明人 |
Dindi Hasan;Palit Sandeep;Pulley Alan Howard;Murillo Luis Eduardo;Ta Thanh Gia;Boeger Brian |
分类号 |
C10G65/04;C10G45/22;C10G45/58;C10G45/60;C10G45/62;C10G45/64;C10G49/20;C10G49/22;C10L1/08 |
主分类号 |
C10G65/04 |
代理机构 |
|
代理人 |
|
主权项 |
1. A liquid-full process for hydroprocessing a middle distillate fuel feedstock, comprising:
(a) contacting the feedstock with (i) a diluent and (ii) hydrogen, to produce a feedstock/diluent/hydrogen mixture, wherein the hydrogen is dissolved in the mixture to provide a liquid feed; (b) contacting the feedstock/diluent/hydrogen mixture with a hydrotreating catalyst in a first reaction zone, to produce a first product effluent; and (c) contacting the first product effluent with a dewaxing catalyst in a second reaction zone, to produce a second product effluent comprising naphtha and a middle distillate product;wherein the middle distillate product has at least one improved cold flow property compared to the middle distillate fuel feedstock and has the yield of at least 85 wt %, and wherein the middle distillate fuel feedstock has a nitrogen content of at least 200 wppm, and the middle distillate product has an iso- to n-paraffin ratio increase of at least 1.5 compared to the middle distillate fuel feedstock. |
地址 |
Wilmington DE US |