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Catalyst for hydro-conversion of mixed aqueous solution containing alcohol, aldehyde, acid and ester into alcohols

A technology for hydroconversion and catalyst, used in the preparation of organic compounds, organic chemistry, bulk chemical production, etc.

Inactive Publication Date: 2011-06-08
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

So far, there are few patent reports on the conversion of aqueous mixtures of alcohols, aldehydes, acids and esters into corresponding alcohol compounds under the action of catalysts.

Method used

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  • Catalyst for hydro-conversion of mixed aqueous solution containing alcohol, aldehyde, acid and ester into alcohols

Examples

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Embodiment 1

[0023] The catalyzer of embodiment 1 is 5%Re-2%Ag-1.5%Pd / coconut shell activated carbon (the activated carbon is not pretreated before use). Weigh 100 grams of commercial coconut shell charcoal (20-40 mesh), and dry at 120° C. for 10 hours. Configuration 105ml contains 7.872 grams of NH 4 ReO 4 , 3.442 g AgNO 3 and 3.550 g Pd(NO 3 ) 2 Aqueous solution, use this aqueous solution to impregnate the above-mentioned coconut shell activated carbon carrier, dry naturally, dry in 120 ℃ of oven nitrogen atmospheres for 4 hours, roast in 300 ℃ of nitrogen atmospheres for 5 hours. Before the reaction, in hydrogen at 250°C (0.2Mpa, 2500h -1 ) reduction activation for 4 hours.

Embodiment 2

[0025] Catalyst 5%Re-2%Ag-1.5%Pd / coconut shell activated carbon of embodiment 2 (pretreatment before activated carbon is used). Weigh 100 grams of commercial coconut shell charcoal (20-40 mesh), wash with deionized water until the conductivity is about 15, and dry at 120° C. for 10 hours. Other steps are the same as in Example 1.

Embodiment 3

[0027] Catalyst 5%Re-2%Ag-1.5%Pd / almond core activated carbon of embodiment 3 (without pretreatment before activated carbon). Take by weighing 100 grams of commercial almond charcoal (20-40 orders). Dry at 120°C for 10 hours. Other steps are the same as in Example 1.

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Abstract

The invention discloses a catalyst for hydro-conversion of a mixture aqueous solution containing alcohol, aldehyde, acid, ester and the like into corresponding alcohols. The catalyst mainly comprises three parts including a main active constituent, an auxiliary and a carrier. The main active constituent is one or more of precious metals including Re, Ru and Pd, the auxiliary is one or more of metals, including Ag, Ni, Cu and the like, or oxides thereof, and the carrier is selected from activated carbon, Al2O3, SiO2 and the like. Under the actions of the catalyst, the mixture aqueous solution containing alcohol, aldehyde, acid, ester and the like in a trickle bed reactor can be converted into a corresponding alcohol aqueous solution in high activity and high selectivity ways under the conditions with certain temperature and pressure.

Description

technical field [0001] The present invention relates to a kind of catalyst that is used to hydrogenate the aqueous solution of the mixture containing alcohol, aldehyde, acid and ester etc. Several or more of propionaldehyde, butanol, butyraldehyde, propionic acid, butyric acid, ethyl acetate, methyl acetate, ethyl propionate, methyl propionate, ethyl butyrate and methyl butyrate The mixed aqueous solution is converted into a catalyst for the corresponding alcoholic compound aqueous solution by hydrogenation. technical background [0002] Carbon dioxide oxygenates such as ethanol, acetaldehyde and acetic acid are basic organic chemical raw materials, especially ethanol as an ideal high-octane low-pollution vehicle fuel and its additives. Using coal resources as raw materials to directly synthesize ethanol and other carbon dioxide containing oxides through synthesis gas, and then convert them into ethanol, can save food resources and make full use of my country's coal resourc...

Claims

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Application Information

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IPC IPC(8): B01J23/68B01J23/89C07C29/141C07C29/149C07C31/08C07C31/10C07C31/12C07C31/04
CPCY02P20/52
Inventor 丁云杰王涛刁成际程显波宋勤华邵守言凌晨曹宏兵
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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