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Supported solid base catalyst, preparation method and appliance thereof for compounding novel biological diesel oil

A solid base catalyst, biodiesel technology, applied in chemical instruments and methods, physical/chemical process catalysts, biofuels, etc., can solve the problems of complex post-processing process, non-reusability, low reactivity, etc., and achieve simple post-processing. , easy to recycle, cheap and easy-to-obtain raw materials

Active Publication Date: 2015-12-30
中德晨晰环保工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0012] The present invention aims to solve the problem that the existing homogeneous base catalysts such as KOH or metal sodium used in the preparation of new biodiesel have low reactivity and cannot be reused, the post-treatment process is complicated, and the reaction products need to be neutralized and washed, resulting in emissions A large amount of waste water, the problem of polluting the environment, and provide a kind of load-type solid base catalyst, its preparation method and its application in synthetic novel biodiesel

Method used

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  • Supported solid base catalyst, preparation method and appliance thereof for compounding novel biological diesel oil
  • Supported solid base catalyst, preparation method and appliance thereof for compounding novel biological diesel oil
  • Supported solid base catalyst, preparation method and appliance thereof for compounding novel biological diesel oil

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specific Embodiment approach 1

[0029] Specific embodiment one: the supported solid base catalyst of the present embodiment comprises sodium aluminate (NaAlO 2 ), potassium fluoride (KF), sodium fluoride (NaF), potassium fluoroaluminate and sodium fluoroaluminate, of which sodium aluminate (NaAlO 2 ) as the carrier, potassium fluoride (KF), sodium fluoride, potassium fluoroaluminate and sodium fluoroaluminate as loads.

specific Embodiment approach 2

[0030] Specific embodiment two: the difference between this embodiment and specific embodiment one is: the supported solid base catalyst is recorded as x-KF / NaAlO 2 , where x represents the loading capacity of potassium fluoride on the sodium aluminate, based on the percentage of potassium fluoride in the mass of the carrier sodium aluminate, x is 10% to 70%. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0031] Specific embodiment three: the preparation method of the described supported solid base catalyst of embodiment one, carry out according to the following steps:

[0032] 1. Preparation of precursor: sodium aluminate (NaAlO 2 ) in an air atmosphere at 200-600°C for 2-6 hours; add the roasted sodium aluminate to a KF methanol solution with a mass percentage concentration of 0.63%-4.07% and stir evenly, and control the stirring speed to 100r / min-120r / min, then leave it for 4h to get the precursor;

[0033] 2. Drying and roasting: move the precursor prepared in step 1 to an oven, dry it at a temperature of 50-90°C for 12-24 hours, grind it, and finally roast it in an air atmosphere at a temperature of 200-600°C for 2-6 hours, that is A supported solid base catalyst is obtained.

[0034] The supported solid base catalyst described in this embodiment can be expressed as x-KF / NaAlO 2 , wherein x is the loading amount of potassium fluoride on sodium aluminate, based on the p...

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Abstract

The invention discloses a supported solid base catalyst, a preparation method and an appliance thereof for compounding novel biological diesel oil, which relate to a solid base catalyst, a perpetration method and a method for catalyzing and preparing novel biological diesel oil, and aim to solve the problems that existing homogeneous base catalysts are not high in reaction activity, can not be recycled, are complex in post-processing process, need to neutralize and wash reaction products, and leads to discharge a lot of waste water and pollute environment. The supported solid base catalyst comprises sodium aluminate, potassium fluoride, sodium fluoride, potassium fluoroaluminate and sodium fluoroaluminate. The preparation method comprises steps: 1 x-KF / NaAlO2 precursors are prepared; and 2 drying and calcining, thereby obtaining the supported solid base catalyst. The method for catalyzing and preparing the novel biological diesel oil is that reaction materials and catalysts are added into a reactor with a reflux condensation device, are stirred and reacted in normal reaction pressure and protection of nitrogen, and then are centrifugally separated, decompressed and distilled. The supported solid base catalyst can be used to catalyze and compound the novel biological diesel oil.

Description

technical field [0001] The invention relates to a supported solid base catalyst, its preparation method, and its application in catalytic preparation of novel biodiesel. Background technique [0002] Biodiesel is a fatty acid alkyl ester obtained by the transesterification reaction of vegetable oil and short-chain alkyl alcohol. Because it has similar physical and chemical properties to petrochemical diesel, it is a green and high-quality alternative energy source. [0003] [0004] Formula 1 biodiesel transesterification reaction equation [0005] R in Formula 1 1 , R 2 , R 3 for C 12～24 (saturated or unsaturated) straight-chain hydrocarbon groups, ROH represents lower fatty alcohols, methanol and ethanol are mostly used, and glycerides are mostly mixed glycerides (ie R 1 ≠R 2 or R 1 ≠R 3 ). Although biodiesel has properties such as non-toxicity, easy degradation and good lubricating properties, its molecular structure only contains one ester group, the oxygen c...

Claims

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Application Information

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IPC IPC(8): B01J27/12B01J27/125C11C3/10C10L1/02
CPCY02E50/10
Inventor 贾丽华娄升风仵文旺郭祥峰宋柏张鑫鑫
Owner 中德晨晰环保工程有限公司
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