Preparing of Ni2P/Zr-MCM-41 catalyst and application for preparing biofuel by catalyzed biolipid

A zr-mcm-41, catalyst technology, applied in physical/chemical process catalysts, biological raw materials, molecular sieve catalysts and other directions, can solve the problems of affecting catalytic performance, affecting catalytic effect, small specific surface area, etc. Good resistance to carbon deposition and stability, the effect of large specific surface area

Active Publication Date: 2016-05-04
HAINAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the most commonly used carrier for catalysts is γ-Al 2 o 3 The carrier, the specific surface area of ​​the carrier is small, the loading active components and the reaction sites provided are less, and the γ-Al 2 o 3 It has strong acidity, but the higher the acidity, the easier it is to deposit carbon in the HDO reaction; under high temperature and pressure, γ-Al 2 o 3 A hydration reaction will also occur, further affecting the catalytic performance
In addition, metal Ni is cheap and has a good catalytic effect, but it is easy to agglomerate on the carrier, which affects the catalytic effect.

Method used

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  • Preparing of Ni2P/Zr-MCM-41 catalyst and application for preparing biofuel by catalyzed biolipid
  • Preparing of Ni2P/Zr-MCM-41 catalyst and application for preparing biofuel by catalyzed biolipid
  • Preparing of Ni2P/Zr-MCM-41 catalyst and application for preparing biofuel by catalyzed biolipid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] 1. Preparation of Zr-MCM-41 carrier

[0034] Add cetyltrimethylammonium bromide (CTAB) into water, stir until completely dissolved, then add zirconium nitrate and tetraethyl orthosilicate (TEOS), and adjust the pH to 10.5 with ethylenediamine, stir for 2 hours, and then heat up to 105°C, and crystallized at this temperature for 48h. After the reaction, the sample obtained was washed with water until neutral, and dried at room temperature. Then the obtained sample was placed in a muffle furnace, heated to 550°C in an air atmosphere, and roasted for 6 hours to remove the surfactant to obtain a Zr-MCM-41 carrier; wherein cetyltrimethylammonium bromide: B The molar ratio of diamine: water: tetraethylorthosilicate: zirconium nitrate is 0.14:8.0:130:1:0.025;

[0035] 2. Ni 2 Preparation of P / Zr-MCM-41 Catalyst Precursor

[0036] Weigh nickel nitrate and diammonium hydrogen phosphate according to the molar ratio of Ni:P=1, mix them, 2 P20% load was made into an aqueous sol...

Embodiment 2

[0040] 1. Preparation of Zr-MCM-41 carrier: Same as Example 1.

[0041] 2. Ni 2 Preparation of P / Zr-MCM-41 catalyst precursor: same as Example 1.

[0042] 3. Ni 2 Preparation of P / Zr-MCM-41 Catalyst

[0043] will Ni 2 The P / Zr-MCM-41 catalyst precursor is reduced with hydrogen. The specific operation is: first rise to 250°C at 10°C / min in a hydrogen atmosphere (flow rate 100mL / min), and then rise to 350°C at 5°C / min. Then rise to 550°C at 1°C / min and keep at 550°C for 2h. After hydrogen reduction, the product was cooled to room temperature and switched to a low concentration of O 2 After passivation for 2 hours, Ni with a loading capacity of 20wt% was obtained 2 P / Zr-MCM-41 catalyst.

Embodiment 3

[0045] 1. Preparation of Zr-MCM-41 carrier: Same as Example 1.

[0046] 2. Ni 2 Preparation of P / Zr-MCM-41 catalyst precursor: same as Example 1.

[0047] 3. Ni 2 Preparation of P / Zr-MCM-41 Catalyst

[0048] will Ni 2 The P / Zr-MCM-41 catalyst precursor is reduced with hydrogen. The specific operation is: first rise to 250°C at 10°C / min in a hydrogen atmosphere (flow rate 100mL / min), and then rise to 350°C at 5°C / min. Then increase to 600°C at 1°C / min and keep at 600°C for 2h. After hydrogen reduction, the product was cooled to room temperature and switched to a low concentration of O 2 After passivation for 2 hours, Ni with a loading capacity of 20wt% was obtained 2 P / Zr-MCM-41 catalyst.

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Abstract

The invention provides preparing of Ni2P/Zr-MCM-41 catalyst and application for preparing biofuel by catalyzed biolipid. A preparing method comprises: preparing a Zr-MCM-41 carrier, then weighing nickel nitrate and diammonium hydrogen phosphate with a molar weight of Ni to P, preparing into a solution, then adsorbing the solution with the carrier, taking out, and roasting to obtain a precursor; rising temperature of the precursor to 250 DEG C at 10 DEG C/min in hydrogen, then rising to 350 DEG C at 5 DEG C/min, then rising to 450-650 DEG C at 1 DEG C /min, keeping for 2h, finally cooling to room temperature, and performing passivation for 2h in low O2 concentration to obtain the catalyst. The method is simple and easy to realize, the catalyst is low in price, the hydrodeoxygenation efficiency is high, hydrodeoxygenation of manioca oil can be better catalyzed, the biofuel is high in straight-chain paraffin content, main components are petroleum diesel and aviation kerosene, the calorific value is high, the stability is high and the catalyst has very high industrial application prospect.

Description

technical field [0001] The present invention relates to a kind of active ingredient is Ni 2 The preparation method of the P / Zr-MCM-41 catalyst and the obtained catalyst also relate to the application of using the catalyst to catalyze bio-oil to prepare bio-fuel. Background technique [0002] With the lack of petroleum energy and the increasingly serious environmental pollution, renewable green energy has attracted more and more attention and research. Among them, the fuel derived from bio-oil has low sulfur and nitrogen content, and only produces very little SO during combustion. 2 and NO 2 , renewable and other advantages, is considered to be an ideal clean energy. However, the oxygen content in unrefined vegetable oil is as high as 50%, which seriously affects the combustion value, transportation and storage of oil products. This kind of fuel, which is similar to the components of petrochemical diesel, is the second-generation biodiesel. The second-generation biodiese...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J29/76C10G3/00
CPCY02P30/20B01J29/76B01J2229/18B01J2229/20C10G3/48
Inventor 李进曹阳
Owner HAINAN UNIVERSITY
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