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High value utilization method of gutter oil

A waste oil, high-value technology, applied in chemical instruments and methods, processing hydrocarbon oil, petroleum industry, etc., can solve problems such as high cost, complex reaction process, calorific value, viscosity, corrosiveness gap, etc., to improve the strength. , The effect of high catalytic cracking conversion rate and high liquid phase yield

Inactive Publication Date: 2016-09-07
HUAIYIN TEACHERS COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Relatively speaking, the processes of impurity removal, purification and transesterification are more complex and costly. Compared with petrochemical diesel, the obtained biodiesel has some differences in calorific value, viscosity and corrosiveness.

Method used

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  • High value utilization method of gutter oil
  • High value utilization method of gutter oil
  • High value utilization method of gutter oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Embodiment 1: preparation catalyst and modified attapulgite

[0045] (1) Weigh 50 g of rare earth materials, Re=La, Ce, Pr, Nd, Sm, Eu, Gd rare earth metal oxalate or nitrate, dissolve it in 100 g of water to form a paste, and stir it gradually Add concentrated nitric acid with a mass fraction of 65% dropwise until it is completely dissolved, then add 5 g of citric acid solid powder to dissolve, and slowly evaporate into a sol at 70°C;

[0046] (2) Weigh the molecular sieve and add it into the sol according to the ratio of the amount of rare earth to the total weight of the molecular sieve as 2%, stir evenly, become a gel after drying, heat up to 550°C and roast for 2 hours to obtain a rare earth modified molecular sieve;

[0047] (3) Prepare 100 ml of sodium hexametaphosphate dispersant aqueous solution with a mass concentration of 1.0%, and add commercially available attapulgite at a solid-to-liquid ratio of 1:15, stir at a high speed for 0.5 h, and then stand for 1 h...

Embodiment 2

[0050] Embodiment 2: preparation catalyst and modified attapulgite

[0051] (1) Weigh 50 g of rare earth materials, Re=La, Ce, Pr, Nd, Sm, Eu, Gd rare earth metal oxalate or nitrate, dissolve it in 100 g of water to form a paste, and stir it gradually Add concentrated nitric acid with a mass fraction of 65% dropwise until it is completely dissolved, then add 5 g of citric acid solid powder to dissolve, and slowly evaporate into a sol at 80°C;

[0052] (2) Weigh the molecular sieve and add it into the sol according to the ratio of the amount of rare earth to the total weight of the molecular sieve as 4%, stir evenly, become a gel after drying, and heat up to 600°C for 2 hours to obtain the rare earth modified molecular sieve;

[0053] (3) Prepare 100 ml of sodium hexametaphosphate dispersant aqueous solution with a mass concentration of 1.1%, add commercially available attapulgite at a solid-to-liquid ratio of 1:22.5, stir at high speed for 0.5 h, and then stand still for 1.5 h...

Embodiment 3

[0056] Embodiment 3: preparation catalyst and modified attapulgite

[0057] (1) Weigh 50 g of rare earth materials, Re=La, Ce, Pr, Nd, Sm, Eu, Gd rare earth metal oxalate or nitrate, dissolve it in 100 g of water to form a paste, and stir it gradually Add concentrated nitric acid with a mass fraction of 65% dropwise until it is completely dissolved, then add 5 g of citric acid solid powder to dissolve, and slowly evaporate into a sol at 90°C;

[0058] (2) Weigh the molecular sieve and add it into the sol according to the ratio of the amount of rare earth to the total weight of the molecular sieve as 6%, stir evenly, become a gel after drying, heat up to 650°C and roast for 2 hours to obtain a rare earth modified molecular sieve;

[0059] (3) Prepare 100 ml of sodium hexametaphosphate dispersant aqueous solution with a mass concentration of 1.2%, add commercially available attapulgite at a solid-to-liquid ratio of 1:30, stir at high speed for 0.5 h, and then let stand for 2 h t...

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Abstract

The invention discloses a high value utilization method of gutter oil. The method comprises the following steps: purifying and preprocessing gutter oil, subjecting gutter oil to catalytic cracking, and separating and refining the products. The gutter oil is preprocessed in a clarifying tank, then filtered by a filter, washed by hot water, demulsified, desalted, dehydrated, and purified. Then, gutter oil exchanges heat with reaction products, and is delivered to a reactor to carry out catalytic cracking. The reaction products are separated by a separator, the waste heat is recycled, and fuel diesel oil, gasoline, and light hydrocarbon gas are obtained. The method has the following advantages: (1) the gutter oil is effectively converted into valuable resources such as diesel oil, gasoline, and the like, and the products have the advantages of high thermal efficiency, and low pollution environment; (2) the produced diesel oil has the advantages of good color value, high calorific value, low condensation point, and high flash point and meets related national and industrial standards; (3) the yield of liquid oil is high, the coking degree is low during the cracking process, the whole technology is compact, the efficiency is high, and the method can be applied to industry easily.

Description

technical field [0001] The invention relates to the technical fields of high-value comprehensive utilization of waste waste oil, fuel oil processing and environmental protection, and in particular relates to a new process for producing fuel oil products by processing waste oils and fats through a catalytic cracking method. Background technique [0002] Waste oil is a general term for waste animal and vegetable oils, swill oil, repeated heating and use, and waste oil from catering sewers. Among them, waste vegetable oil is the most important source and composition of waste oil. According to statistics from China Business Intelligence Network, the catering industry in domestic cities produces up to 4.5 million tons of waste oil every year. Because waste oil is a kind of edible oil with heavy pollution, it will release a series of aldehydes, acids and other substances that pollute the atmosphere and deteriorate the environment through complex biochemical reactions in the water...

Claims

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Application Information

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IPC IPC(8): C11C3/00B01J29/00C10G3/00C11B3/00C11B3/10
CPCB01J29/00B01J2229/186C10G3/49C10G2300/1007C10G2300/307C10G2400/02C10G2400/04C11B3/001C11B3/008C11B3/10C11C3/00Y02E50/10Y02P30/20
Inventor 吴飞跃刘炳华周守勇徐继明褚效中陈莉莉穆飞虎
Owner HUAIYIN TEACHERS COLLEGE
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