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Production of diesel fuel from renewable feedstocks containing phosphorus

a technology of renewable feedstocks and diesel fuel, which is applied in the direction of catalytic naphtha reforming, hydrocarbon oil treatment products, naphtha reforming, etc., can solve the problem of common contamination of phosphorus

Inactive Publication Date: 2009-12-31
UOP LLC +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Phosphorus is a common contaminant in these types of feedstocks.

Method used

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  • Production of diesel fuel from renewable feedstocks containing phosphorus
  • Production of diesel fuel from renewable feedstocks containing phosphorus
  • Production of diesel fuel from renewable feedstocks containing phosphorus

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[0034]Several renewable feedstocks, each having different levels of phosphorus were hydrogenated and deoxygenated (some were also isomerized), and the occurrence of plugging in the pre-heater or in the reactors was noted. Some of the experiments were conducted with a hydrocarbon recycle and some of the experiments were conducted without a hydrocarbon recycle. The renewable feedstocks tested included vegetable oils, grease, and tallow. For all cases except the yellow grease, the beef tallow, and the cooking oil, the feedstocks were processed at 1 LHSV with respect to fresh feedstock in a down-flow trickle bed reactor containing 150 cc of a promoted nickel-molybdenum on alumina catalyst. The feedstocks were continuously added at a rate of 150 cc / hr or 1LHSV over a period of 1000 hours at an operating pressure of about 3447 kPa absolute (500 psia) and about 310 to about 332° C. (590 to 650° F.). The H2 / hydrocarbon ratio in the feed was about 3700 to about 5000 scfb.

[0035]The Table show...

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Abstract

A process has been developed for producing diesel fuel from renewable feedstocks such as plant oils, animal oils and greases. The process involves treating a renewable feedstock by hydrogenating and deoxygenating to provide a diesel boiling range fuel hydrocarbon product. If desired, the hydrocarbon product can be isomerized to improve cold flow properties. A portion of the hydrocarbon product is recycled to the treatment zone to increase the hydrogen solubility of the reaction mixture. The renewable feedstock comprises from about 1 to about 20 wt. ppm phosphorus measured as elemental phosphorus.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This applications claims priority from Provisional Application Ser. No. 61 / 076,605 filed Jun. 27, 2008, the contents of which are hereby incorporated by reference in its entirety.FIELD OF THE INVENTION[0002]This invention relates to a process for producing diesel boiling range hydrocarbons useful as fuel from renewable feedstocks such as the glycerides and free fatty acids found in materials such as plant oils, animal oils, animal fats, and greases. The process involves hydrogenation, decarboxylation, decarbonylation, and / or hydrodeoxygenation and hydroisomerization in two or more steps. The process is operated with a volume ratio of recycle product to feedstock from about 2:1 to about 8:1. The process is operated at a total pressure of from about 1379 kPa absolute (200 psia) to about 4826 kPa absolute (700 psia). The renewable feedstock contains from about 1 to about 20 wt. ppm phosphorous.BACKGROUND OF THE INVENTION[0003]As the demand fo...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): C10G45/00C10G35/04
CPCC10G2400/04C10G2300/1037C10G3/46C10G3/50C10G2300/1007C10G45/58C10G2300/1018C10G2300/1022C10G2300/202C10G2300/4081C10G2300/1014Y02P30/20
Inventor MARKER, TERRY L.SABATINO, LUIGINA M. F.BALDIRAGHI, FRANCO
Owner UOP LLC
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