Method for producing biomass fuel by animal and vegetable oil leftover catalytic cracking

A biomass fuel and catalytic cracking technology, which is applied in the field of catalytic cracking of animal and vegetable oil leftovers to produce biomass fuel, can solve the problems of unsatisfactory esterification effect, high treatment cost, and large sulfuric acid consumption, and achieve good physical and chemical performance indicators and equipment Less corrosive and less environmental pollution

Inactive Publication Date: 2008-12-24
CHONGQING HUAZHENG ENERGY SOURCE DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the deficiencies in the prior art that a large amount of polluted sulfuric acid and dangerous methanol need to be consumed in the treatment of animal and vegetable oils or their leftovers, the environmental pollution is relatively large, the treatment cost is

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0021] Example 1: De-impurity and dehydration of animal and vegetable fats and oils, so that the impurity content is less than 2%, and the moisture content is less than less than 2%; the raw materials and the catalyst are added to the reactor at a mass ratio of 100:4, and the selected catalyst is amorphous silicic acid Aluminum; heated to 380°C for catalytic cracking reaction, mainly producing biodiesel; the product obtained after the reaction is distilled at atmospheric pressure, the biogasoline fraction is distilled at 180°C, and the biodiesel fraction is steamed at 250°C.

Example Embodiment

[0022] Example 2: De-impurity and dehydration of animal and vegetable fats and oils, so that the impurity content is less than 2.5%, and the moisture content is less than 1.8%; the raw materials and the catalyst are added to the reactor at a mass ratio of 100:6, and the selected catalyst is γ-Al2O3; The temperature is raised to 430°C for catalytic cracking reaction; the product obtained after the reaction is distilled at atmospheric pressure, and the biogasoline fraction is distilled at 120°C, and the biodiesel fraction is steamed at 210°C.

Example Embodiment

[0023] Example 3: De-impurity and dehydration of animal and vegetable fats and oils, so that the impurity content is less than 2.5% and the moisture content is less than 1.5%; the raw materials and the catalyst are added to the reactor at a mass ratio of 100:8, and the selected catalyst is molecular sieve; The catalytic cracking reaction is carried out at 480°C; the product obtained after the reaction is distilled at atmospheric pressure, and the biogasoline fraction is distilled at 70°C, and the biodiesel fraction is steamed at 280°C.

[0024] The physical and chemical performance indexes of biodiesel produced by this method are shown in the following table:

[0025] Biodiesel physical and chemical performance indicators

[0026] Item

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Abstract

The invention discloses a method for producing biomass fuel by catalytic cracking from scraps of animal and vegetable oil. The method comprises the following steps that: the animal and vegetable oil or the scraps thereof are subjected to decontamination and dehydration to make an impurity content less than 3 percent and a moisture content less than 3 percent; 2. under the condition of normal temperature, a mass ratio between a raw material and a catalyst in a reaction kettle is between 100 to 2 and 10, the reaction kettle is slowly heated to a temperature of between 300 and 500 DEG C to carry out a catalytic cracking reaction; and a product obtained after the reaction is distilled under normal pressure, a biological gasoline fraction is distilled at a temperature of between 40 and 190 DEG C, and a biological diesel fraction is distilled at a temperature of between 190 and 290 DEG C; and 4. the catalyst is amorphous aluminum silicate, gamma-Al2O3 or a molecular sieve. Compared with the prior method for producing biodiesel by an esterification method or an interchange esterification method, the method for producing the biomass fuel of the invention does not use concentrated sulfuric acid or inorganic base which have strong corrosiveness, has small pollution to the environment and small corrosion to equipment, and reduces cost in sewage treatment; and the raw material has wide application range, comprising animal and vegetable fat, hogwash oil, waste oil, chafing dish oil, bottom oil of plant oil, soapstock, acidified oil and so on, has no restriction on the acid value of the raw material.

Description

technical field [0001] The invention relates to a method for producing biomass fuel by using animal and plant leftovers, especially a method for producing biomass fuel by catalytic cracking of animal and vegetable oil leftovers. Background technique [0002] Animal and vegetable fats and oils or their leftovers, such as hog oil, oil foot, soap foot, etc., are basically organic polymer substances, which should and can be used as biological raw materials; if they are simply discarded, a new type of waste is wasted on the one hand. Organic raw materials, on the other hand, may pollute the environment. In the prior art, the treatment methods of animal and vegetable oils and esters or their leftovers are generally esterification or transesterification reactions, which need to consume a large amount of polluting sulfuric acid and dangerous methanol, etc., which have high processing costs and environmental pollution. Larger deficiencies such as; the technical scheme disclosed in t...

Claims

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Application Information

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IPC IPC(8): C10G3/00
CPCY02E50/10Y02P30/20
Inventor 方建华王九包代勇王红健
Owner CHONGQING HUAZHENG ENERGY SOURCE DEV
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