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Low-temperature hydrocarbon production from oxygenated hydrocarbons

A technology for oxidizing hydrocarbons and silicon dioxide, applied in the direction of producing hydrocarbons from oxygen-containing organic compounds, catalysts, organic chemistry, etc., can solve the problems of raw material depletion, achieve the effect of increasing energy yield and reducing volume

Inactive Publication Date: 2005-09-14
WISCONSIN ALUMNI RES FOUND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Non-renewable raw materials will eventually be depleted over time

Method used

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  • Low-temperature hydrocarbon production from oxygenated hydrocarbons
  • Low-temperature hydrocarbon production from oxygenated hydrocarbons
  • Low-temperature hydrocarbon production from oxygenated hydrocarbons

Examples

Experimental program
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Effect test

Embodiment 1

[0091] By using Pt(NH 3 ) 4 2+ exchange of H on the silica surface + , to prepare a 5wt% silica-supported platinum catalyst system (Pt / SiO 2 ). The preparation process includes the following steps: (1) use Pt(NH 3 ) 4 (NO 3 ) 2 (Aldrich Chemical, Milwaukee, Wisconsin) to exchange Cab-O-Sil EH-5, by using Pt(NH 3 ) 4 (OH) 2 (2) filter the resulting material and rinse with deionized water; and (3) dry the filtered material in air at 390K overnight.

Embodiment 2

[0093] A 5 wt% silica-supported platinum catalyst system was prepared according to the procedure of Example 1. However, the catalyst was modified by dehydroxylation and capping with trimethylethoxysilane. The catalyst system was prepared as follows: (1) Fumed silica (Cab-O-SilEH-5 grade) was dried at 600K for 10 hours in a flow of helium; Platinum is added to the carrier by deposition; (3) the obtained Pt / SiO is calcined at 600K in an oxygen flow 2 Catalyst system; (4) use hydrogen flow to reduce the calcined catalyst system at 600K; (5) dehydroxylate the resulting catalyst system at 1173K under helium flow; (6) use CO to treat the catalyst system at 300K to prevent Platinum sites were reacted with trimethylethoxysilane; (7) the resulting catalyst was treated with 4.5 mmol trimethylethoxysilane (Gelest Inc., Tullytown, Pennsylvania) at 300K; (8) the catalyst was treated with CO, until the residual pressure is 10 torr; (9) at 473K, compounding trimethylethoxysilane into the c...

Embodiment 3

[0095] The catalyst system described in Examples 1 and 2 was used for the liquid phase reforming of sorbitol. The device used for reforming is image 3 Schematic depiction of the device. The catalyst was loaded into a 1 / 4 inch stainless steel reactor. The catalyst was reduced by flowing hydrogen over the catalyst at a temperature of 225°C. The catalyst is cooled after reduction. The system was then purged with nitrogen, and a 10 wt% aqueous solution of sorbitol was charged into the reactor using an HPLC pump. Once liquid is observed in the separator, the pressure of the system is raised to 21.7 bar using nitrogen (pressure is controlled by back pressure regulator 26; see image 3 ). The liquid feed was pumped through the catalyst bed while the furnace heated the catalyst bed to 225°C. The liquid leaves the reactor and is cooled in a jacketed water cooler ( image 3 , reference number 22). Liquid from this cooler is combined with a nitrogen stream at the top of the cool...

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PUM

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Abstract

Disclosed is a method of producing hydrocarbons from oxygenated hydrocarbon reactants, such as glycerol, glucose, or sorbitol. The method can take place in the vapor phase or in the condensed liquid phase (preferably in the condensed liquid phase). The method includes the steps of reacting water and a water-soluble oxygenated hydrocarbon having at least two carbon atoms, in the presence of a metal-containing catalyst. The catalyst contains a metal selected from the group consisting of Group VIIIB transitional metals, alloys thereof, and mixtures thereof. These metals are supported on supports that exhibit acidity or the reaction is conducted under liquid-phase conditions at acidic pHs. The disclosed method allows the production of hydrocarbon by the liquid-phase reaction of water with biomass-derived oxygenated compounds.

Description

[0001] Cross References to Related Applications [0002] Priority is claimed to Provisional Application Serial No. 60 / 379,486, filed May 10, 2002, and is incorporated herein by reference. [0003] Federal Funds Statement [0004] NSF Grant No. 9802238 and DOE Grant No. DE-FG02-84ER13183 granted the US Government support for this invention. The United States has certain rights in this invention. field of invention [0005] The present invention relates to a process for the production of hydrocarbons by low temperature gas phase and condensed liquid phase reforming of oxidized hydrocarbons. Background of the invention [0006] Hydrocarbon feedstocks are currently mined from the ground and burned to produce energy. Currently these hydrocarbon feedstocks are preferably in liquid form (ie gasoline) for ease of transportation. Non-renewable raw materials will eventually be depleted over ti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L3/06C07C1/20C10G3/00
CPCC10G3/46C10G2300/805C10G3/47C07C2523/42C10G3/48C10G2300/1011C07C1/20C07C2521/08C10G3/49Y02P30/20
Inventor R·D·科尔特赖特J·A·杜梅西克
Owner WISCONSIN ALUMNI RES FOUND
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