A full liquid phase hydrogenation technology

A liquid-phase hydrogenation technology, applied in the field of hydrogenation stations, can solve the problems of high transportation and storage costs of hydrogenation stations

Active Publication Date: 2020-01-07
余菲
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of high transportation and storage costs of hydrogen refueling stations, and proposes a full liquid phase hydrogenation technology to effectively solve the problem of high transportation and storage costs of hydrogen refueling stations

Method used

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  • A full liquid phase hydrogenation technology
  • A full liquid phase hydrogenation technology
  • A full liquid phase hydrogenation technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A full liquid phase hydrogenation technology, comprising the following steps;

[0028] S1. The ethanol raw material delivery vehicle delivers the ethanol raw material to the ethanol raw material storage tank set up inside the hydrogenation station, and transports the ethanol raw material to the raw material buffer preheating tank;

[0029] S2. Add the hydrogen-reduced catalyst to the high-pressure reactor set up in the hydrogenation station, and open the control valve, inject the ethanol raw material in the raw material buffer preheating tank into the high-pressure reactor, and open the gas path valve to feed the high-pressure reactor Add nitrogen to the reactor, and raise the pressure to 2.5-3MPa, and control the jacket heating device at the bottom of the high-pressure reactor through an external circuit to raise the temperature to 200-250°C, and continue to stir;

[0030] S3. During the reaction process, keep stirring for 2.5-3.5 hours. After the gas phase in the high...

Embodiment 2

[0043] Embodiment 2: Based on Embodiment 1 but different;

[0044] The gas product after gas-liquid separation is measured by Agilent 7890A gas chromatograph, chromatographic column 5A molecular sieve (2m, φ3mm) packed column and PorapakQ (3m) packed column, nitrogen is carrier gas, hydrogen is measured by TCD detector, CO 2 , CO, CH 4 And other alkanes are detected by the FID detector after being converted by the reformer. The column temperature is 50°C, the injector temperature is 100°C, the reformer temperature is 380°C, and the detector temperature is 100°C.

[0045] The liquid phase product after gas-liquid separation was determined by Agilent 7890A gas chromatograph, the chromatographic column was DB-WAX (60m, φ0.53mm), and the carrier gas was helium. The initial column temperature was 40°C, raised to 240°C at a heating rate of 10°C / min, kept for 8 minutes, and quantified by the internal standard method, using ethylene glycol-butyl ether as the internal standard. The ...

Embodiment 3

[0046] Embodiment 3: based on embodiment 1 and 2 but different;

[0047] Pd / γ-Al is given in the table below 2 o 3 , PdNi / γ-Al 2 o 3 and Ni / γ-Al 2 o 3 The basic physical structure properties of the three catalysts, the three catalysts are prepared by the equal volume impregnation method, the theoretical metal loading is 3wt%, and the actual loading is measured by ICP-AES. As shown in the table below, before loading γ-Al 2 o 3 The specific surface area of ​​the carrier is as high as 167.40m 2 / g, the pore volume and average pore diameter are 0.41cm 3 / g and 9.35nm. After metal loading, it is found that no matter what kind of metal is loaded, although the actual loading rate is below 3wt% as determined by ICP-AES,

[0048] But γ-Al 2 o 3 The specific surface area of ​​the carrier decreased significantly from the initial

[0049] 167.40m 2 / g drops to 124-133m 2 / g, the pore volume is reduced to pure γ-Al 2 o 3 Half of the carrier, the average pore diameter also ...

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Abstract

The invention discloses a full liquid-phase hydrogenation technology, and belongs to the field of hydrogen refueling stations. Hydrogen is obtained through an aqueous phase reforming hydrogen production technology by using biomass derivatives as raw materials, a low-carbon environment-friendly new energy road is developed, and a great development potential is achieved in search for substitutes offossil energy. Ethylene glycol is selected as a representative of polyol to carry out an aqueous phase reforming hydrogen production reaction, the doping modification of a Pd-based catalyst is studiedfor the high cost of noble metal, and multiple catalysts are designed and prepared according to the defects of Ni-based catalysts; and the ethylene glycol aqueous phase reforming hydrogen productionperformance of the catalysts is investigated in detail.

Description

technical field [0001] The invention relates to the field of hydrogen refueling stations, in particular to a full liquid phase hydrogen refueling technology. Background technique [0002] The high calorific value and cleanness of hydrogen energy make it an ideal energy source to replace fossil energy. The existing industrialized hydrogen production technology is either unsustainable due to the use of petroleum as a raw material, or consumes energy through electrolysis, and the conversion efficiency is low, so it does not have an advantage in the development of hydrogen energy in the future. The use of biomass derivatives for aqueous phase reforming technology to obtain hydrogen has the advantages of high conversion rate, simple equipment, wide source of raw materials and easy purification of gas phase products, and is regarded as a new hydrogen production technology with the most development potential. In this paper, a variety of catalysts were designed and prepared, and th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B3/32B01J23/755
CPCB01J23/755C01B3/326C01B2203/1058C01B2203/1082C01B2203/1217Y02P20/584
Inventor 余菲
Owner 余菲
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