Ultimate negative pressure waste oil catalytic cracking regeneration rectification complete set of acid-base free treatment

Abstract

The invention provides a complete apparatus capable of performing extreme negative pressure catalytic cracking regeneration rectification on waste oil without acid-alkali treatment. The complete apparatus comprises an oil inlet pump (1), a vacuum dehydration tank (5), a reaction kettle (10), an oil gas catalysis tower (15), an oil gas cooling device (16), a gas-liquid separation device (17), a first finished product oil storage tank (18), a second finished product oil storage tank (19) and a filtration tank (28), wherein the first finished product oil storage tank (18) and the second finishedproduct oil storage tank (19) are identical and are mutually spare to each other. According to the present invention, the complete apparatus integrates waste oil cracking, rectification, catalysis, gasification separation and other processes, has the simple and reasonable structure, significantly improves the dewatering, degassing, decolorization, desulfurization, cracking and rectification effecton waste oil, has the oil output rate of 95%, has advantages of continuous production and production cost reducing, wherein the obtained finished product oil has the good quality, and meets the national standard, and has promotion value.

Description

technical field [0001] The invention belongs to the field of rectification and regeneration of waste oil, and relates to a complete set of device for waste oil catalytic cracking regeneration rectification without acid and alkali treatment under extreme negative pressure. Background technique [0002] Waste oil refers to various lubricating oils that can no longer be used after being used for a period of time due to the immersion of pollutants and oxidative deterioration of some components. The replaced lubricating oils are collectively referred to as waste oil. Lubricating oil is widely used in automobiles, ships, various industrial equipment and transmission parts of various machinery, etc., and the scope of use is very wide. According to incomplete statistics, China's waste oil can reach more than 20 million tons per year, which is a huge amount. If the replaced waste oil cannot be treated scientifically, it will waste a lot of resources and cause serious environmental p...

AI Technical Summary

Problems solved by technology

1) acid-base refining method, the discharge and treatment of acid slag affect the environment and cause environmental pollution; 2) filter and sieve separation method, which has very strict requirements on raw materials, and the production efficiency is low; 3) centrifugal separation method, its production efficiency 4) Vaporization separation method is mainly used for large-scale treatment equipment, it is difficult to adapt to the miniaturization equipment of small and medium-sized waste oil treatment institutions, and its catalyst replacement cost is high; 5) Distillation hydrofining method , its initial construction and installation investment costs are usually more than 30 million, so its cost is very high

[0004] The existing waste oil pyrolysis rectification regeneration device also has the following problems: (1) the heating pipe is only partially heated, and has a short service life, is prone to explosion, is unsafe, and is prone to scaling and coking, which greatly affects the yield. If there is a fault at the pipe, there is a problem of difficulty in replacement; (2) the existing catalyst has low efficiency, cannot be reused and reused, and the catalytic effect is not good; (3) the existing device lacks waste treatment links, resulting in a large amount of smoke and odor, Therefore, it is not environmentally friendly, and the waste gas, waste residue, and waste water generated are not treated in an environmentally friendly manner, which may easily lead to environmental pollution; (4) The existing device still uses manual monitoring, which is costly and prone to omissions, and automatic control is not used

[0005] In order to solve the problems of cost, safety and environmental protection in the existing technology, it is necessary to improve the existing waste oil regeneration equipment and process, and study a new waste oil catalytic cracking regeneration rectification device

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