KR101996570B1 - Advanced method of refining waste lubricant oil by atmospheric distillation and catalytic upgrading with an automatic catalyst regeneration system - Google Patents

Abstract

The present invention relates to a high-nitrogen purifying method by a waste lubricant atmospheric distillation and an automatic regeneration catalyst device, which manufactures transparent light purified oil without smell. The high-nitrogen purifying method of the present invention comprises: a preprocessing step; an atmospheric distillation step; a condensing step; a catalyst treating step; and a microfiltration step.

Description

TECHNICAL FIELD [0001] The present invention relates to a refining method for refining waste lubricant oil by atmospheric distillation and automatic regenerating catalyst,

More particularly, the present invention relates to a method of continuously purifying an autocatalytic catalyst by oxidizing an organic substance adhered to the catalyst during an automatic regeneration catalyst contamination, Regeneration of the waste lubricating oil, which can be used for 5 to 6 months after the regeneration, and which is capable of producing an odorless and transparent hard refined oil.

Waste oil is regulated to be recycled to the refining fuel channel by several methods in waste management law. In the late 1980s, wasted oil, which had been contaminated with mold release agents and heating, was recycled as refining fuel oil was recycled according to the Law on Recycling. However, in the early days of recycling of waste oil, there was not a lot of demand for refined oil, but now it is used for power generation in the sub-industry and it is widely used in terms of waste recycling. For example, with the enforcement of the waste recycling legislation, refined distillation refinery fuel oil has stabilized to the level of use in power plants.

In other words, waste oil was contaminated with hazardous substances due to lack of laws related to recycling, and was circulated to industrial sites in the early 1990s. For example, the internal combustion engine waste lubricating oil is a designated waste containing heavy metals such as lead (Pb), arsenic (As), chromium (Cr) and cadmium (Cd) and has been polluted by discharge of sewer or illegal incineration. Unhealthy carbon monoxide (CO), sulfur oxides (SO _x ) and nitrogen oxides (NO _x ) are emitted from power plants, boilers and automobiles using fuel. In order to conserve the environment and recycle resources due to the discharge of sewage from such waste oil or unauthorized incineration, Law No. 4363 on the Promotion of Resource Conservation and Recycling was enacted in 1991.

In addition, Article 91-99 of the Environment Enforcement Notice notifies the regulations on the collection and disposal of wastes in the event that containers containing hazardous substances, manufactured, processed, imported and sold in large quantities become wastes.

In this way, the waste lubricant was recycled according to the recycling system and developed into the current waste management law. In particular, the amount of waste lubricating oil generated from internal combustion engines in Korea reaches 65 ~ 70% of the total amount of waste oil, which is similar to that of Europe, and the consumption of lubricant oil is also high for automobiles.

On the other hand, the recycling of waste oil is proceeding through many trial and error with suitable treatment facilities according to Environmental Protection Notice No. 91-99. For example, due to the shortage of refined fuel oil in the past, illegal circulation of waste oil increased, and refinery oil was supplied to thermal power plants with the cooperation of public institutions. Since then, the use of refined fuel oil has been confirmed as a cost-saving measure. As a result, refined oil consumption has been increasing in various industries, mainly in the aluminum industry.

In summary, the process of recycling waste oil that has undergone a lot of trial and error at present is to install and use a dust collector in the field of chemical refining, high-temperature pyrolysis, decompression distillation and emulsification fuel, .

First, the removal of heavy metals in the chemical refining process is the process of separating the sludge using Decanter & Separator through chemical reaction. It is a process requiring improvement because of low investment cost and easy handling but ash. In other words, drug refining uses chemicals and centrifuges to produce refined oils with high quality standards such as moisture and sediment, residual carbon, sulfur, ash and heavy metals. The facility investment cost is low, but it is a process requiring facility conversion because it can not be used in big cities due to the restriction of refinery fuel oil use area.

Second, high temperature pyrolysis, which was introduced considering the needs of producers and consumers after chemical refining, is an advanced process in terms of quality improvement and waste stabilization. In the case of pyrolysis at high temperature, sludge can be solidified like steel making slag, and heavy metals can be treated safely. However, high temperature pyrolysis distillation products are products that avoid use due to burning equipment and feed pump failure due to heavy smell and tar. Therefore, it can not be used in the city because of odor and tar, and the process raw hydrocarbons C ₂₀₊ to C ₃₀₊ are _replaced with C ₁₅₊ to C ₁₈₊ The volume is increased by about 3% due to decomposition, but it is a process in which the evaporator is deformed by direct heating.

Third, vacuum distillation is a process to produce refined oil similar to base oil by distilling process raw material with end point of 500 ℃ by indirect heating by maintaining distillation facility at 0 ~ 5 Torr. In the same distillation process as base oil production, the process that can produce excellent products by adding hydrogen treatment or solvent extraction process, or the refined oil which produces the process raw material by decompression distillation has a strong smell and color, . Product characteristics are similar to base oil, and heat and flash point are safe products. It is superior to chemical refining and high temperature pyrolysis. Residues oil can be used as raw materials for asphalt or chemical refining process, but it is difficult to utilize due to high investment cost and difficult handling. In the case of refined oil through reduced pressure distillation, the amount of impurities is not so much, but aftertreatment is required because it generates ash during combustion due to the inclusion of impurities such as organic metal compounds and tar. This means that, in the case of the vacuum distillation process, the process of manufacturing base oil in Europe and advanced countries is introduced to produce refined oil similar to base oil. However, refined oil using vacuum is used, And the demand for measures to reduce quality and nitrogen oxides.

Fourth, the petroleum fuel process is a process to produce 10 ~ 20% of water in heavy oil or refined oil to produce emulsified fuel, and it can be used in places where the calorific value is low. The impurities are the same as the first, and the oil separation is caused by the long-term storage. The emulsified fuel causes the combustion device to fail due to the complete combustion purpose using H ₂ O oxygen or the oil separation.

Fifth, in the method of manufacturing clean fuel oil using waste oil (Registration No.: 10-0592856), it was attempted to produce high-quality fuel oil without using distillation of waste oil directly using inorganic ceramic material catalyst. However, It is troublesome to repeat the process of decoloring treatment again.

Sixth, 'refining method of waste lubricating oil using calcium-montmorillonite (registration number: 10-1559461)', reaction, filtration, decolorization and deodorization through special acid (H ₂ SO ₄ ) treatment and heat treatment , And desulfurization and adsorption. It is possible to use refined oil in thermal power plant by removing impurities such as metal organic compounds and tar in distillation products produced by high temperature pyrolysis, atmospheric distillation and reduced pressure distillation by utilizing calcium-montmorillonite having excellent catalytic properties. However, the catalyst is a calcium-montmorillonite of 200 Mesh powder, which can not be regenerated and reusable with a Pore radius 10 ~ 50 Å consuming catalyst. Especially, although the increase of waste increases the cost of production, the odor and the chromaticity are not as clean as the base oil. In particular, the viscosity of distillation products can not be manufactured according to the ISO VG 28 ~ 32 standard such as base oil, but light oil required by current age through temperature control.

Therefore, recently, demand for refined oil which has removed pollutants such as nitrogen oxides, sulfur oxides and metal oxides is urgently required for research on technology development that contributes to the government's environmental policy and makes it possible for small farmers.

Korean Registered Patent No. 10-0592856, Jun. 16, 2006 Registered as a person. Korean Registered Patent No. 10-1559461, October 5, 2015.

Disclosure of the Invention The present invention was made to solve the above-mentioned problems, and it is an object of the present invention to provide a method for regenerating an automatic regenerating catalyst by oxidizing organic substances adhered to the catalyst, The present invention is directed to a method for purification of high quality by using atmospheric distillation of waste lubricating oil and an automatic regenerating catalyst device, in which transparent refined oil is produced.

In order to accomplish the above object, the present invention provides a method for purifying waste lubricating oil, comprising: a pretreatment step of collecting and pretreating waste lubricating oil; An atmospheric distillation step of generating vapor in the pretreated waste lubricating oil by an atmospheric distillation method; A condensing step of condensing the vapor in an air cooling manner to obtain an oil-type distillate product; The distillation product is treated with an automatic regenerating catalyst consisting of 95 to 97 wt% of aluminum oxide (Al ₂ O ₃ ) in granule form and 3 to 5 wt% of silicon dioxide (SiO ₂ ) in granule form to produce odor and color A catalyst treatment step of producing the removed catalyst treatment product; And a microfiltration step of removing the foreign substances from the catalyst-treated product to produce a hard refined oil. Between the catalytic treatment step and the microfiltration step, when the automatic regenerating catalyst is contaminated with organic substances, And a catalyst automatic regeneration step of continuously regenerating the automatically regenerated catalyst while reducing the regenerated catalyst by oxidizing the organic matter through an automatic regenerative catalyst device including a heater for heating the fuel to about 400 ° C, And separating the tar contained in the distilled product by a sedimentation method between the step of separating the distillation product and the step of treating the catalyst. The method is a technical point.

Preferably, the aluminum oxide (Al ₂ O ₃ ) in the catalyst treatment step is formed by calcining the bauxite and is formed to contain 1 to 3 wt% of iron oxide (Fe ₂ O ₃ ) based on the total weight .

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Preferably, the method further comprises mixing a clean dispersant in the distillation product in which the tar is separated and removed to prevent the remaining tar from hardening between the sediment separation step and the catalyst treatment step .

Preferably, the pre-treatment step, the condensation step and the microfiltration step are carried out at room temperature, and in the atmospheric distillation step, heat is transferred by a direct heating method under atmospheric pressure.

The method for purifying and reforming atmospheric distillation of waste lubricating oil according to the present invention by the means for solving the above problems and the automatic purifying and regenerating method using the catalyst for automatic regeneration has the following effects.

First, there is an effect of efficiently producing an odorless, colorless, low viscosity hard refined oil by removing impurities such as organic metal compounds and tar through atmospheric distillation and automatic regeneration catalyst treatment to provide a clean environment for present and future generations.

Secondly, since it is possible to produce hard refined oil which can be used for internal combustion engines such as water tube type, associated type, perfusion type, etc., boiler, agricultural machinery, heavy equipment, small generator, etc., have.

1 is a flowchart according to a preferred embodiment of the present invention;
FIG. 2 is a photograph showing the atmospheric distillation and condensation according to a preferred embodiment of the present invention. FIG.
FIG. 3 is a photograph of a single catalyst treatment according to a preferred embodiment of the present invention. FIG.
FIG. 4 is a photograph of the catalyst treated in two passes according to a preferred embodiment of the present invention. FIG.
FIG. 5 is a photograph of the catalyst treated in three times according to a preferred embodiment of the present invention. FIG.
FIG. 6 is a graph showing the element composition of an automatic regenerating catalyst according to a preferred embodiment of the present invention.
7 is a surface structure of an automatic regenerating catalyst according to a preferred embodiment of the present invention.
8 is a view illustrating a material composition of an automatic regenerating catalyst according to a preferred embodiment of the present invention.

The present invention is intended to improve the energy efficiency of waste, which is a renewable energy field that can contribute to enhancement of national competitiveness. It is anticipated that there will be a continuous demand for hard refined oil which is safe and easy to use in a small- To produce a near-hard refined oil.

For example, the recycling process of waste lubricant oil, which is a typical process raw material, includes chemical refining, vacuum distillation, high-temperature pyrolysis and emulsifying fuels as mentioned in the Background of the Invention.

First, drug refining was first introduced in Korea. Since the early 1990s, more than 60% of refiners have relied on chemical refining, which requires environmentally friendly, high-quality processes. This is a simple process for physical treatment of waste lubricant refining processes It is difficult to remove the organometallic compound.

Secondly, decompression distillation is a distillation method using heat and vacuum to remove the most impurities, but residual organic metal compounds in the distillation product can be confirmed by ICP analysis and also with tar.

Third, high-temperature pyrolysis is a kind of distillation method, and removal of impurities is good. However, not only the process improvement is required because the bad smell and tar are produced in the distillation product, but also the tar is generated in the distillation product and the refined oil containing the organometallic compound is burned The generation of ash from the metal oxide causes damage to the heat transfer area of the combustion equipment, the connection and the water pipe. In the case of special combustion facilities, Na, K, etc. are mainly controlled by substances controlled to less than 0.25 mg / l, and As is caused by SCR catalyst damage.

Fourth, the emulsified fuel has the purpose of complete combustion using H ₂ O oxygen, but the oil separation causes the combustion device failure.

Therefore, the present invention is a new technology for manufacturing hard refined oil which dramatically removes ash and nitrogen oxides by utilizing an atmospheric distillation and automatic regeneration catalyst device so that even a small-scale business site that does not have an SCR facility can be used safely.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a flowchart according to a preferred embodiment of the present invention. As shown in FIG. 1, the process for purifying and solidifying a waste lubricating oil by the atmospheric distillation and automatic regeneration catalytic device according to the present invention comprises a pretreatment step (S1), an atmospheric distillation step (S2), a condensation step (S3) Impurities and odors are removed through step S4, clean dispersant mixing step S5, catalytic treatment step S6, automatic catalyst regeneration step S7 and microfiltration step S8 to produce a colorless transparent hard refined oil Each of the detailed steps will be described in more detail as follows.

First, the pretreatment step is a step of collecting and pretreating the waste lubricating oil. (S1)

Prior to describing the pretreatment step, waste lubricating oil was heated to 80 to 90 ° C in Korea, and foreign materials having a size of 50 μm or more were removed using a decanter to separate sludge, and 0.5 to 50 μm sludge was pretreated using a separator In the present invention, pretreatment is performed without using Decanter & Separator.

That is, the pretreatment step is a step of collecting waste lubricating oil as a raw material of the process and removing foreign substances. The waste lubricating oil containing heavy metals is collected from an automobile garage or industry and then introduced into a non-resistance 2-way screen in a ground tank, Rotary screen is used to filter out foreign matters. When filtration is completed, the first rotary gear pump (RP-101) on the rear surface of the non-resistance 2-way screen is operated to store the waste lubricating oil in the first storage tank (ST-101) .

In other words, the collected waste lubricant can be replaced with a centrifuge (Decanter & Separator) because it removes foreign matter by using a non-resistance 2-way screen without pressure load.

The non-resistance 2-way screen, which does not have a pressure load, replaces the centrifugal separator. It removes the solid matter contained in the waste lubricating oil at room temperature without using heat energy. It is easy to handle and can save energy cost. .

For reference, the non-resistive 2-way screen is an energy-saving device without pressure load, and can remove foreign matter without pressure load. In order to separate the sludge by heating the existing waste lubricating oil to 80 ~ 90 ℃, it is necessary to remove foreign substances of 50 ㎛ or more by using Decanter and pretreat the sludge of 0.5 ~ 50 ㎛ using a separator. .

At this time, it is desirable to apply a safe method in which all the waste gas such as hydrocarbons C ₁ -C ₅ , hydrogen sulfide, mercaptan, alcohol, amine, aldehyde and ketone which are not recovered is incinerated into a flare stack.

However, although the process raw material in the present invention is limited to the waste lubricating oil, any waste oil generated at home or abroad may be applied. For example, process raw materials include domestic engine oil, waste oil to be discarded after consumption of industrial lubricants, and refined fuel oil from abroad.

Next, in the atmospheric distillation step, the pretreated waste lubricating oil is vaporized by an atmospheric distillation method. (S2)

Specifically, the atmospheric distillation step is a step of evaporating the waste lubricating oil, which has been pretreated by the removal of foreign matter, with a direct heating method using an electric furnace, a gas burner, an oil burner or the like at a temperature of 400 to 700 ° C to generate vapor.

More specifically, the waste lubricating oil stored in the first storage tank (ST-101) is removed by operating the second rotary gear pump (RP-102) Distillation vessel, DV-101, and directly heated under an atmospheric pressure with an electric furnace, a gas burner, an oil burner or the like at a temperature of 400 to 700 ° C to generate vapor.

In the case of the atmospheric distillation, when it is directly heated to less than 400 ° C., the vapor is not generated sufficiently in a short time from the pretreated waste lubricating oil, which is disadvantageous in terms of the inefficiency in the process due to high time consuming. On the other hand, when the temperature is higher than 700 ° C., there is an advantage that the vapor is generated quickly. However, since the high temperature causes the physical properties of the waste lubricating oil to be deformed, It is preferable to generate the vapor by the direct heating method.

The material to be removed by the atmospheric distillation contained in the waste lubricating oil stored in the first storage tank (ST-101) of the pretreatment step is an organic metal compound used as a lubricant additive, and is an alkali metal, an alkaline earth metal, Group, a boron group, a carbon group, a nitrogen group, an oxygen group, and a halogen group.

These metals are co-entrained with steam to produce organometallic compounds and tar. Burning the distillate product in the future will lead to metal oxide and harmful gases, resulting in environmental pollution and thermal efficiency degradation.

Among them, nitrogen oxide acts as a mechanism to induce fine dusts, which not only makes the environment dark and humid, but also causes respiratory diseases to people. Accordingly, the distillation product obtained later through the reduced pressure distillation includes metal oxides, sulfur oxides, and nitrogen oxides. Therefore, it is important to recycle resources, which must fundamentally remove impurities harmful to nature and human beings.

In addition, in the case of an atmospheric distillation vessel (DV-101), it is preferable to form a spherical or round shape to prevent deformation.

Next, the condensing step is a step of condensing the vapor in an air cooling manner to obtain an oil-like distillation product. (S3)

FIG. 2 is a photograph showing the atmospheric distillation and condensation according to a preferred embodiment of the present invention. FIG. Referring to FIG. 2, it is shown that the vaporized product obtained through atmospheric distillation is condensed to be a carbonized distillation product having a black color. Particularly, since foreign substances are removed in the pre-treatment step, it is understood that foreign matter of some large particles are removed in the distillation product.

That is to say, the condensation step is performed by distilling the distillation vessel (DV-101) in the atmospheric distillation stage and condensing the obtained vapor into an air condenser (AC-101) to prepare a first buffer tank (BT-101 ) To recover the distilled product.

For reference, it is preferable to arrange a distillation vessel (DV-101) and an air condenser (AC-101) in series in order to simplify the process and reduce the investment cost.

Next, the sediment separation step separates and removes the tar contained in the distillation product by the precipitation method. (S4)

That is, in the precipitate separation step, when the distillation product having been condensed in the first simple tank (BT-101) is collected, the precipitate containing tar is separated and then the first centrifugal pump (CP-101) 2 storage tank (ST-201).

Next, the clean dispersant mixing step is a step of mixing the clean dispersant into the distilled product in which the tar is separated and removed to prevent the remaining tar from hardening. (S5)

That is, the clean dispersant mixing step is a step of mixing a clean dispersant into a second storage tank (ST-201) containing a distilled product from which tar has been removed in the precipitate separation step. This is mixed with a second storage tank (ST-201 The remaining tar that will remain unremoved is filled in the piping or the like to prevent the pipeline from clogging.

In other words, in the clean dispersant mixing step, the waste lubricating oil is distilled through the atmospheric distillation step, so that the remaining tar is hardened and accumulated on the pipe to close the pipe, so that the tar is not cured.

In addition, any of the non-metallic clean dispersants that can prevent the remaining tar from hardening may be used as the clean dispersant.

Next, the catalyst treatment step is a step of treating the distillation product with an automatic regenerating catalyst composed of 95 to 97 wt% of aluminum oxide (Al ₂ O ₃ ) in granule form and 3 to 5 wt% of silicon dioxide (SiO ₂ ) in granule form To thereby prepare a catalyst-treated product in which odor and color are removed. (S6)

That is, the distillation product of the second storage tank (ST-201) in which the clean dispersant is mixed is activated by the second centrifugal pump (CP-102) -102), and then a third rotary gear pump (RP-103) is operated for automatic regeneration catalyst treatment, and the amount is automatically supplied to the automatic regeneration catalyst system (ARCS-101) Remove odors and impurities.

In the catalyst treatment step, a second centrifugal pump (CP-102) of a second storage tank (ST-201) is operated to distill the distilled product into a second buffer tank (BT-102 ), And then a third rotary gear pump (RP-103) was operated to inject the quantitative amount into an automatic regeneration catalyst system (ARCS-101) to remove impurities and odors at room temperature It produces a clear, transparent hard refined oil.

In this case, the automatic regeneration catalyst system (ARCS-101) is used to quantitatively inject distilled products to remove tar and impurities. Among the characteristics of the regenerated catalyst, various mechanisms such as oxidation reaction, reduction reaction, ion exchange, Metal compounds, tar, odor, and color.

In detail, the automatic regeneration catalyst system (ARCS-101) is used to select a catalyst for the removal of organometallic compounds, tar, odor and color in the distillation product, Through experiments, we have analyzed and verified the optimum composition.

The automatic regeneration catalyst system (ARCS-101), which uses the mechanism of oxidation reaction, reduction reaction, ion exchange, adsorption, filtration and discoloration, There are features that can be reproduced continuously for 6 months.

6 is a graph showing an element composition of an automatic regenerating catalyst according to a preferred embodiment of the present invention. Referring to FIG. 6, the components of the automatic regenerating catalyst have been confirmed.

The mixing ratio of the regenerated catalyst is 95 to 97 wt% of aluminum oxide (Al ₂ O ₃ ) of 20 to 70 meshes in granule form and 3 to 10 wt% of silicon dioxide (SiO ₂ ) of 10 to 50 mesh of granule type. And 5 wt%. This is detailed in Table 1 below.

division Al O Si S Content (wt%) 40 to 50 45 to 55 1-5 0.3 to 0.6

7 is a surface structure of an automatic regenerating catalyst according to a preferred embodiment of the present invention. Referring to FIG. 7, it can be seen that the microgap formed on the surface of the automatic regenerating catalyst is an enlarged photograph.

The pore radius of the regenerated catalyst consisting of 95 to 97 wt% of aluminum oxide (Al ₂ O ₃ ) in granule form and 3 to 5 wt% of silicon dioxide (SiO ₂ ) in granule form, Swellable with a specific surface structure of 20 Å (preferably 19 Å), pore volume of 0.2 cm 3 / g, BJH desorption of 148 cm 2 / g and MBET of 194 cm 2 / g. This is summarized in Table 2 below.

division Pore radius Pore volume BJH desorption MBET characteristic 19 Å 0.2 cm 3 / g 148㎠ / g 194 cm 2 / g

First, aluminum oxide (Al ₂ O ₃ ) is formed by processing natural bauxite to have a special structure and performance. It is the main component of auto regenerating catalyst, so it occupies more than 95wt% do.

Figure 8 shows the composition of compounds according to a preferred embodiment of the present invention by XRD-1 analysis. Referring to FIG. 8, it is confirmed that aluminum oxide (Al ₂ O ₃ ) is a main component. The x-axis shows the intensity of the y-axis according to the change of time, and aluminum oxide (Al ₂ O ₃ ) and iron .

Herein, aluminum oxide (Al ₂ O ₃ ) may include natural iron oxide (Fe ₂ O ₃ ) in an amount of 1 to 3 wt% based on the total weight of the aluminum oxide (Al ₂ O ₃ ) Fe ₂ O ₃ ) is added in an amount of less than 1 wt%, it is difficult to maintain the rigidity of aluminum oxide (Al ₂ O ₃ ), and if it is added in an amount exceeding 3 wt%, the physical properties may deteriorate.

In this case, aluminum oxide (Al ₂ O ₃ ) is in a granule form of 20 to 70 meshes. When the particle size is less than 20 meshes, the particle size is too large and the compounding with silicon dioxide (SiO ₂ ) is poor. On the other hand, (Al ₂ O ₃ ) preferably has a particle size of 20 to 70 meshes because the production efficiency is lowered due to outflow in the solid phase process.

Second, silicon dioxide (SiO ₂ ) is used for increasing the transmittance and has a cation exchange capacity of 100 meq / g and a pore radius of 10 to 50 Å.

Here, silicon dioxide (SiO ₂ ) is in a granule form of 10 to 50 meshes. When it is less than 10mesh, the particles are large, so that they are poorly mixed when mixed with aluminum oxide (Al ₂ O ₃ ) (SiO ₂ ) preferably has a particle size of 10 to 50 mesh because the particles are too small to be easily fired when the particle size is more than 50 mesh and the outflow rate is high when the particles are made into an autocatalytic catalyst.

FIG. 3 is a photograph of a single catalyst treatment according to a preferred embodiment of the present invention. FIG. Referring to FIG. 3, the color of the distillation product according to FIG. 2 in which the catalyst treatment step has been performed once can be confirmed. The distillation product of FIG. 2 has a yellow distillation color which is relatively more transparent than a black distillation product obtained through atmospheric distillation and condensation The product is confirmed to be refined.

FIG. 4 is a photograph of the catalyst subjected to two times of treatment according to a preferred embodiment of the present invention. FIG. Referring to FIG. 4, the color of the distillation product obtained by further catalytically treating the distillation product of FIG. 3 can be confirmed. It is confirmed that the product is purified to a yellow distillation product which is relatively transparent than the color of the distillation product shown in FIG. do.

FIG. 5 is a photograph of the catalyst treated in three times according to a preferred embodiment of the present invention. Referring to FIG. 5, it can be seen that the distillation product of FIG. 4 passes through the catalyst once more and becomes clear and transparent.

Next, in the automatic catalyst regeneration step, when the automatic regeneration catalyst is contaminated by adherence of organic substances, the regeneration catalyst is reduced by oxidizing organic matter through an automatic regeneration catalyst device including a heater that heats the gas at 350 to 400 ° C., Is continuously reproduced. (S7)

That is, in the automatic catalyst regeneration step, when the catalytic function of the automatically regenerated catalyst contaminated with organic matters is lowered, the regeneration catalyst is regenerated so that the regenerated catalyst is regenerated again. Thus, To be reused.

That is, if the catalyst function is deteriorated due to adhesion of organic substances to the automatic regeneration catalyst, the regeneration mode of the catalyst is switched to the regeneration mode of the organic substance removal catalyst, and the regeneration catalyst is regenerated by heating the regeneration catalyst at 350 to 400 ° C. Subsequently, when the catalyst regeneration mode is finished, the catalyst is naturally cooled and finished.

In particular, when the temperature is lower than 350 ° C, the regenerated catalyst is not regenerated, and thus the regenerated catalyst is inevitably exchanged. When the temperature exceeds 400 ° C, It is important to heat the heater to a temperature of 350 to 400 ° C.

Therefore, the automatic regenerating catalyst oxidizes the organic substances attached to the surface and the voids, and the regenerated catalyst is regenerated through the reducing action, so that the regenerated catalyst can be continuously used for a certain period of time.

Although refined oil from existing vacuum distillation is a clean product, it has been difficult to comply with the current Air Quality Conservation Act emission standards. Therefore, it was a reality to supply refined oil to companies that built large power plants or SCR facilities. However, by removing the organometallic compound and tar of the distillate product through an atmospheric distillation step and an automatic regeneration catalyst treatment step, and purifying it with a clear and transparent hard refined oil free from odor, color, viscosity, and impurities, the physical and chemical properties Physical properties can be achieved.

Accordingly, safe and clean refined refined oil required by the future age can be manufactured without any problem on the current emission standards, and there is an effect that a small business operator can easily use the purified refined oil regardless of time and place.

Finally, the microfiltration step is a step of preparing hard refined oil by removing foreign matter from the catalyst treatment product. (S8)

Specifically, the microfiltration step is a step of removing a foreign matter having a particle size of 1 탆 or more generated from catalyst particles or pipelines of an automatic regeneration catalytic device with a filter.

More particularly, the present invention relates to an automatic regeneration catalyst treatment step of removing impurities such as tar and odor by utilizing mechanisms such as oxidation reaction, reduction reaction, ion exchange, filtration and adsorption, When stored in a tank (BT-103), a 4th Rotary gear pump (RP-104) is operated and a final filter (FF-101) The rigid refined oil product that has removed particles and pipeline foreign matter is stored in a third storage tank (ST-301) and supplied to the consumer.

In addition, it is preferable to provide a cartridge & bag filter which removes foreign matter of 0.5 탆 or more with a membrane filter (MF-101) that removes oxides that may be generated in a storage facility at the time of shipment of a hard refined oil product stored for a long period of time . This is to maintain a good product until it reaches the consumer after shipment of the hard refined product.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention may be embodied otherwise without departing from the spirit and scope of the invention.

Therefore, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to illustrate them, and the scope of the technical idea of the present invention is not limited by these embodiments.

The scope of protection of the present invention should be construed according to the claims, and all technical ideas within the scope of the claims should be construed as being included in the scope of the present invention.

Claims (5)

A pretreatment step of collecting and pretreating waste lubricating oil;
An atmospheric distillation step of generating vapor in the pretreated waste lubricating oil by an atmospheric distillation method;
A condensing step of condensing the vapor in an air cooling manner to obtain an oil-type distillate product;
The distillation product is treated with an automatic regenerating catalyst consisting of 95 to 97 wt% of aluminum oxide (Al ₂ O ₃ ) in granule form and 3 to 5 wt% of silicon dioxide (SiO ₂ ) in granule form to produce odor and color A catalyst treatment step of producing the removed catalyst treatment product; And
And a microfiltration step of removing foreign matters from the catalyst-treated product to produce a hard refined oil,
Between the catalyst treatment step and the microfiltration step,
The automatic regenerating catalyst is reduced by continuously oxidizing the organic substance through an automatic regenerating catalyst apparatus including a heater for heating the regenerated catalyst at 350 to 400 ° C. when the regenerated catalyst is contaminated with organic substances, Further comprising the steps of:
Between the condensing step and the catalyst treatment step,
And separating and removing the tar contained in the distilled product by a precipitation method. The method of claim 1, further comprising the step of separating and removing the tar contained in the distilled product by a precipitation method. The method according to claim 1,
The aluminum oxide (Al ₂ O ₃ )
The bauxite is formed by plastic working,
(Fe ₂ O ₃ ) is contained in an amount of 1 to 3 wt% based on the total weight of the exhaust gas purifying catalyst. delete The method according to claim 1,
Between the precipitate separation step and the catalyst treatment step,
And a clean dispersant mixing step of mixing the clean dispersant into the distillation product in which the tar is separated and removed so that the remaining tar is not hardened. The method according to claim 1,
Wherein the pre-treatment step, the condensation step and the microfiltration step are carried out at room temperature,
Wherein the atmospheric distillation step transfers heat by a direct heating method under atmospheric pressure.

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