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Device for producing diesel oil by using waste diesel oil

A technology of waste engine oil and diesel oil, which is applied in the direction of only multi-stage series refining and cracking process treatment, lubricating composition, etc., can solve the problems that impurities cannot be effectively removed, and the use effect is not good, so as to improve social and economic benefits, The design is reasonable and practical to achieve the effect of recycling resources

Inactive Publication Date: 2015-05-20
DONGYING ZHENGFENG NEW ENERGY TECH
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AI Technical Summary

Problems solved by technology

Although there is a waste engine oil treatment device in this area at present, the effect is not good and the impurities cannot be effectively removed

Method used

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  • Device for producing diesel oil by using waste diesel oil

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Embodiment Construction

[0007] As shown in the figure, a waste engine oil production diesel equipment mainly consists of a heating furnace 1, a vacuum tower 2, a first cooler 3, a first pump 4, a reactor 5, a second cooler 6, and a third cooler 7 , a diesel tank 8, a second pump 9, a gas-liquid separation tank 10, a fourth pump 11 and a third pump 12.

[0008] The technical process of the present invention: after the waste engine oil is pre-treated, it is distilled in the decompression tower, and the fraction of diesel oil and lighter than diesel oil is drawn out from the side line of the tower into the diesel fraction tank, and the fraction heavier than diesel oil enters the tank equipped with cracking catalyst. The reactor is cracked at 350-390°C, and then returned to the tower for fractionation after cracking. Such circulation can obtain the maximum yield of diesel oil. The catalyst is silicon / aluminum, molecular sieve or type-selective molecular sieve catalyst, and the catalyst life is designed ...

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Abstract

The invention provides a device for producing diesel oil by using waste diesel oil. The device mainly comprises a heating furnace 1, a vacuum tower 2, a first cooler 3, a first pump 4, a reactor 5, a second cooler 6, a third cooler, a diesel oil tank 8, a second pump 9, a gas-liquid separation tank 10, a fourth pump 11 and a third pump 12, wherein the catalyst inside the reactor 5 is a molecular sieve-selective molecular sieve compounded cracking agent, the ratio of selectors are 3:1-4:1; the feeding temperature of the vacuum tower 2 is 380-400 DEG C and can be adjusted by the mixing of high and low temperature feed streams; and the vacuum tower 2 is a packing tower and adopts a structured packing mode. The device for producing the diesel oil by using the waste diesel oil disclosed by the invention has a reasonable and practical design, solves the problem in the prior art that impurities cannot be effectively removed and the problem of environmental pollution, truly achieves the resource regeneration of wastes, and greatly improves the social benefit and the economic benefit; and the device is suitable for general popularization and use.

Description

technical field [0001] The invention relates to the technical field of producing diesel from waste engine oil, in particular to equipment for producing diesel from waste engine oil. Background technique [0002] Waste engine oil is industrially used waste lubricating oil and mechanical oil containing a large amount of impurities, which has become a polluting site that is harmful to the environment. The annual production volume in my country is more than 10 million tons. How to deal with waste engine oil has become an urgent problem to be solved. Waste engine oil can be recycled by removing impurities through dehydration, filtration, precipitation, distillation, acid, alkali, and clay refining. Although there is a waste engine oil treatment device in this respect at present, the use effect is not good, and impurities cannot be effectively removed. Contents of the invention [0003] The object of the present invention is to provide a waste engine oil production diesel equip...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G55/06C10M175/00
Inventor 蒋学东
Owner DONGYING ZHENGFENG NEW ENERGY TECH
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