Cooking fume collection and analysis apparatus and cooking fume collection and analysis method

Abstract

Disclosed are a cooking fume collection and analysis apparatus and a cooking fume collection and analysis method. The cooking fume collection and analysis apparatus comprises: a cooking fume adsorption part for adsorbing a sample which is at least one among a gas, a liquid, or the gas and the liquid in a mixed state; and a flow rate control part for controlling the inflow rate of the sample into the cooking fume adsorption part. The cooking fume adsorption part comprises: a cooking fume collector formed from a metal material and having formed therein an inner space communicating with an inlet and an outlet; and an adsorbent formed from a porous material and provided in the inner space.

Description

Cooking fume collection and analysis device and cooking fume collection and analysis method

[0001] The present invention relates to a cooking fume collection and analysis device and a cooking fume collection and analysis method, and more particularly, to a cooking fume collection and analysis device and a cooking fume collection and analysis method capable of collecting cooking fume generated during a cooking process and qualitatively / quantitatively analyzing fat components contained in the cooking fume.

[0002] Cooking fumes are primarily generated when cooking oil or fat components in food interact with moisture at cooking temperatures below 200°C. These cooking fumes are primarily composed of fine oil and water particles generated by oil splatter, and may contain some carcinogens resulting from thermal oxidation.

[0003] The dangers of cooking fumes have recently received significant attention. From February 2021 to October 2022, 75 food service workers applied for industrial accident compensation for lung diseases caused by cooking fumes, and 66.7% of these were recognized as industrial accidents. In response, the Ministry of Employment and Labor established health examination standards in December 2021 to allow low-dose CT scans of the lungs for current food service workers aged 55 or older or with more than 10 years of experience in the food service industry. The Ministry also developed and distributed a "School Cafeteria Ventilation Equipment Installation Guide" to promote structural and performance improvements in ventilation facilities. Furthermore, the Ministry of Education announced a "School Cafeteria Cooking Environment Improvement Plan" with the goal of completing the improvements by 2027.

[0004] Existing PM (particulate matter) measurement methods struggle to provide accurate quantitative analysis because they often measure water particles contained in cooking fumes, or because oil and water particles condense and coalesce, altering particle size. As an alternative, derivatization reactions utilizing acidic or basic catalysts can be used to quantitatively analyze cooking fumes by component.

[0005] However, the derivatization reaction utilizing the above acid or base catalyst requires more than two hours, and various impurities cause saponification and hydrolysis reactions, reducing the yield. Furthermore, separation and purification processes are required to obtain high-purity fatty acid alkyl esters, which can result in sample loss, making accurate analysis difficult.

[0006] The present invention addresses the problems of prior art by providing a device capable of efficiently capturing cooking fumes, minimizing loss, and derivatizing fat components contained in cooking fumes without the need for separate catalysts or high-pressure conditions. Furthermore, the present invention provides a cooking fume capture and analysis device and analysis method capable of rapidly and efficiently qualitatively and quantitatively analyzing fat components contained in cooking fumes by shortening and simplifying the long reaction time and complex separation and purification processes involved in the derivatization reaction.

[0007] A cooking fume collection and analysis device according to the present invention comprises: a cooking fume adsorption unit that adsorbs at least one sample of gas, liquid, or a mixture of the gas and the liquid; and a flow rate control unit that controls the flow rate of the sample into the interior of the cooking fume adsorption unit, wherein the cooking fume adsorption unit comprises: a cooking fume collector made of a metal having an internal space communicating with an inlet and an outlet; and an adsorbent made of a porous material provided in the internal space.

[0008] In addition, the cooking fume adsorption unit may further include a first stopper that is connectable to the cooking fume collector and opens and closes the inlet; and a second stopper that is connectable to the cooking fume collector and opens and closes the outlet; and may further include a sample analysis unit that analyzes the components of the sample adsorbed on the cooking fume adsorption unit, wherein the sample analysis unit may include an alcohol supply unit that supplies alcohol into the cooking fume collector; and a heater that heats the cooking fume collector while the first stopper and the second stopper are connected to the cooking fume collector.

[0009] Additionally, the first plug and the second plug can be screw-connected to the cooking fume collector.

[0010] Additionally, the alcohol may be selected from methanol, ethanol, propanol and butanol.

[0011] Additionally, the heater can heat the internal temperature of the sample collector to 300°C to 500°C.

[0012] Additionally, the adsorbent may be selected from among a matrix or macroporous material including silica, alumina, zeolite, activated carbon, and biochar.

[0013] In addition, the cooking fume collector may further include quartz cotton provided in front and behind the adsorbent, respectively, to fix the adsorbent.

[0014] A cooking fume collection and analysis method according to the present invention comprises the steps of: adsorbing at least one sample of gas, liquid, or a mixture of the gas and liquid onto an adsorbent made of a porous material provided inside a cooking fume collector; supplying alcohol into the interior of the cooking fume collector; heating the cooking fume collector in a sealed state to perform a non-catalytic derivatization reaction; and analyzing a sample on which the non-catalytic derivatization reaction has been performed.

[0015] In addition, the sealing of the cooking fume collector can be achieved by screwing a first stopper onto the cooking fume collector having an inlet and an outlet to seal the inlet, and screwing a second stopper to seal the outlet.

[0016] In addition, the step of performing the non-catalytic derivatization reaction may heat the internal temperature of the cooking fume collector to 300°C to 500°C.

[0017] Additionally, the internal temperature of the cooking fume collector can be maintained at 300°C to 500°C for 0.1 to 5 minutes.

[0018] Additionally, the alcohol may be selected from methanol, ethanol, propanol, and butanol.

[0019] According to the present invention, the cooking fume collection and analysis device and the cooking fume collection and analysis method can provide an integrated process from the collection of cooking fume to the analysis through a non-catalytic derivatization reaction, thereby minimizing sample loss without requiring a separate separation and purification process, and is effective in qualitative and quantitative analysis of a sample with high accuracy even in trace analysis.

[0020] In addition, the cooking fume capture and analysis method enables accurate analysis regardless of the impurity content of the sample through a non-catalytic derivatization reaction without an acidic or basic catalyst, and can effectively prevent problems such as reduced conversion yield and wastewater generation caused by the catalyst.

[0021] In addition, the cooking fume capture and analysis method can reduce the overall analysis time and reaction process cost because the non-catalytic derivatization reaction is completed within a few minutes.

[0022] FIG. 1 is a block diagram showing a cooking fume collection and analysis device according to one embodiment of the present invention.

[0023] Figure 2 is a drawing showing the connection relationship between the cooking fume adsorption unit, flow control unit, and connecting pipe of Figure 1.

[0024] Fig. 3 is a cross-sectional view showing the cooking fume adsorption part of Fig. 2.

[0025] FIG. 4 is a drawing showing a cooking fume capture and analysis method according to one embodiment of the present invention.

[0026] Figure 5 is a flowchart showing the cooking fume capture and analysis method of Figure 4.

[0027] FIG. 6 is a graph showing the conversion rate into fatty acid alkyl ester according to the internal temperature of a cooking fume collector in a non-catalytic derivatization reaction performing step according to one embodiment of the present invention.

[0028] FIG. 7 is a graph showing the conversion rate of fatty acid methyl ester depending on the amount of sample in a non-catalytic derivatization reaction performing step according to one embodiment of the present invention.

[0029] FIGS. 8 to 11 are drawings for explaining a cooking fume analysis step according to one embodiment of the present invention.

[0030] FIG. 12 is a graph showing the conversion rate of fatty acid methyl ester and the composition ratio of fatty acid alkyl ester according to the temperature of the internal space of a cooking fume collector when biochar containing inorganic matter is used as an internal adsorbent of a cooking fume collector in a non-catalytic derivatization reaction performing step according to another embodiment of the present invention.

[0031] A cooking fume collection and analysis device according to the present invention comprises: a cooking fume adsorption unit that adsorbs at least one sample of gas, liquid, or a mixture of the gas and the liquid; and a flow rate control unit that controls the flow rate of the sample into the interior of the cooking fume adsorption unit, wherein the cooking fume adsorption unit comprises: a cooking fume collector made of a metal having an internal space communicating with an inlet and an outlet; and an adsorbent made of a porous material provided in the internal space.

[0032] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. However, the technical concept of the present invention is not limited to the embodiments described herein and may be embodied in other forms. Rather, the embodiments introduced herein are provided to ensure that the disclosed content is thorough and complete and to sufficiently convey the spirit of the present invention to those skilled in the art.

[0033] In this specification, when a component is referred to as being on another component, it means that it can be formed directly on the other component, or a third component may be interposed between them. In addition, in the drawings, the thicknesses of films and regions are exaggerated for the purpose of effectively explaining the technical contents.

[0034] Also, although terms such as first, second, and third have been used to describe various components in various embodiments of this specification, these components should not be limited by these terms. These terms are only used to distinguish one component from another. Thus, what is referred to as a first component in one embodiment may be referred to as a second component in another embodiment. Each embodiment described and illustrated herein also includes its complementary embodiments. Also, the term "and / or" has been used herein to mean including at least one of the components listed before and after.

[0035] In the specification, singular expressions include plural expressions unless the context clearly dictates otherwise. In addition, terms such as "comprise" or "have" are intended to specify the presence of a feature, number, step, component, or combination thereof described in the specification, and should not be construed as excluding the presence or addition of one or more other features, numbers, steps, components, or combinations thereof. In addition, the term "connection" is used in the present specification to mean both indirectly connecting multiple components and directly connecting them.

[0036] In addition, when describing the present invention below, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description will be omitted.

[0037]

[0038] FIG. 1 is a block diagram showing a cooking fume collection and analysis device according to one embodiment of the present invention, FIG. 2 is a drawing showing the connection relationship of a cooking fume adsorption unit, a flow control unit, and a connecting pipe of FIG. 1, and FIG. 3 is a cross-sectional view showing the cooking fume adsorption unit of FIG. 2.

[0039] Referring to FIGS. 1 to 3, a cooking fume collection and analysis device (10) can collect cooking fumes and perform qualitative and quantitative analysis on the collected samples. Here, the sample refers to cooking fumes collected through the cooking fume collection device (10). The cooking fumes are mainly composed of fine oil and water particles generated due to the oil frying phenomenon, and some of them may contain carcinogens due to thermal oxidation. According to one embodiment, the cooking fumes may be provided as a mixture of gaseous and liquid states generated when fat components of food ingredients, such as cooking oil, lard, beef tallow, and duck fat, interact with moisture at a cooking temperature of 200°C or lower in a cooking facility. The fat components may include animal and vegetable oils including triglycerides and free fatty acids (FFAs).

[0040] The above cooking fume collection and analysis device (10) includes a cooking fume adsorption unit (100), a flow control unit (200), a connection pipe (300), and a sample analysis unit (400).

[0041] The above cooking fume adsorption unit (100) adsorbs cooking fumes and stably stores the sample. The above cooking fume adsorption unit (100) includes a cooking fume collector (101), a first stopper (102), a second stopper (103), an adsorbent (104), and quartz cotton (105).

[0042] The above cooking fume collector (101) has a predetermined length and diameter, and an internal space (101c) is formed therein. The cooking fume collector (101) has an inlet (101a) at one end and an outlet (101b) at the other end, and the inlet (101a) and the outlet (101b) are connected to each other through the internal space (101c). The inlet (101a) is an inlet through which a sample in an external region is introduced into the internal space (101c). The outlet (101b) is an outlet through which a sample in the internal space (101c) is discharged to the outside. The cooking fume collector (101) has screw threads formed along the outer circumference. The cooking fume collector (101) is provided with a metal material that is resistant to heat and corrosion. According to an embodiment, the cooking fume collector (101) may be provided as a stainless steel bulkhead union.

[0043] The first stopper (102) has a predetermined shape. According to one embodiment, the first stopper (102) has a hexahedral shape and a coupling hole is formed inside the first stopper (102). The coupling hole has the same diameter as the internal space (101c) of the cooking fume collector (101) and has screw threads formed along its circumference. The first stopper (102) opens and closes the inlet (101a) of the cooking fume collector (101). Specifically, the first stopper (102) can be screw-coupled with the cooking fume collector (101) by fastening the screw threads of the first stopper (102) and the screw threads of the cooking fume collector (101), and can seal the inlet (101a) of the cooking fume collector (101).

[0044] The second stopper (103) has a predetermined shape. In one embodiment, the second stopper (103) has the same shape as the first stopper (102) and has screw threads formed along the inside thereof. The second stopper (103) opens and closes the outlet (102b) of the cooking fume collector (101). Specifically, the second stopper (103) can be screw-coupled to the cooking fume collector (101) by fastening the screw threads of the second stopper (103) and the screw threads of the cooking fume collector (101), and can seal the outlet (101b) of the cooking fume collector (101).

[0045] The above adsorbent (104) is positioned in the internal space (101c) of the cooking fume collector (101) and has a predetermined shape. The adsorbent (104) is provided as a porous material having a plurality of pores formed therein, and may be selected from among medium or macroporous materials including silica, alumina, zeolite, activated carbon, and biochar.

[0046] The above quartz cotton (105) is positioned in the internal space of the cooking fume collector (101) and has a predetermined shape. According to one embodiment, the quartz cotton (105) may be provided in a cylindrical shape corresponding to the diameter of the internal space (101c) of the cooking fume collector (101). The quartz cotton (105) is provided in a pair, and is provided at the front and rear of the adsorbent (104), respectively. The quartz cotton (105) fixes the adsorbent (104).

[0047] The above flow control unit (200) controls the flow rate of the sample flowing into the internal space (101c) of the cooking fume collector (101).

[0048] The above connecting pipe (300) is provided in a predetermined length, one end is connected to the cooking fume adsorption unit (100), and the other end is connected to the flow rate control unit (200). The connecting pipe (300) is provided with a refractory material that does not deform due to heat.

[0049] The sample analysis unit (400) performs qualitative and quantitative analysis of the sample adsorbed on the adsorbent (104). Specifically, the sample analysis unit (400) performs qualitative and quantitative analysis of fatty acid alkyl esters converted through a non-catalytic derivatization reaction of the fat component of the cooking fume adsorbed on the adsorbent (104) in the internal space (101c) of the cooking fume collector (101) using gas chromatography (GC). Here, the gas chromatography is a chemical technology that separates and analyzes fatty acid alkyl esters, which are converted forms of fat components contained in a sample, in a gaseous state. The sample analysis unit (400) includes an alcohol supply unit (401) and a heater (402).

[0050] The alcohol supply unit (401) supplies alcohol to the internal space (101c) of the cooking fume collector (101). The alcohol may be provided as methanol, ethanol, propanol, and butanol. In one embodiment, the alcohol may be provided as methanol.

[0051] The heater (402) heats the cooking fume collector (101) to increase the temperature of the internal space (101c) of the cooking fume collector (101) to a high temperature. In one embodiment, the temperature of the internal space (101c) of the cooking fume collector (101) may be provided at 300°C to 500°C. The high temperature of the internal space (101c) of the cooking fume collector (101) causes the alcohols to change phase from liquid to gas, thereby increasing the kinetic energy of the alcohol molecules. As a result, the alcohol molecules in the gaseous state increase the frequency and intensity of collisions with the fat components in the liquid state of the sample adsorbed on the adsorbent (104), thereby causing a non-catalytic derivatization reaction. The non-catalytic derivatization reaction converts the fat components into fatty acid alkyl esters in the gaseous state through an ester exchange reaction between the alcohols and the fat components.

[0052]

[0053] A method (S10) for collecting and analyzing cooking fumes using the above-described cooking fume collecting and analyzing device (10) is described.

[0054] FIG. 4 is a drawing showing a cooking fume capture and analysis method according to one embodiment of the present invention, and FIG. 5 is a flowchart showing the cooking fume capture and analysis method of FIG. 4.

[0055] Referring to FIGS. 4 and 5, the cooking fume capture and analysis method (S10) includes a cooking fume adsorption step (S100), an alcohol supply step (S200), a non-catalytic derivatization reaction performance step (S300), and a sample analysis step (S400).

[0056] The above cooking fume adsorption step (S100) is performed by the user opening either the first stopper (102) or the second stopper (103), connecting the cooking fume collector (101) to the connection pipe (300), and then operating the flow control unit (200) to introduce cooking fume (F) generated during the process of cooking food in the cooking facility (C) into the internal space (101c) from the inlet (101a) of the cooking fume collector (101). The cooking fume (F) is adsorbed to the adsorbent (104). According to one embodiment, the fat component included in the cooking fume (F) may be provided as soybean oil. The adsorbent (104) can adsorb up to 85 mg. When the above cooking fume adsorption step (S100) is completed, either the first stopper (102) or the second stopper (103) is closed to store the cooking fume collector (101) in a sealed state.

[0057] The alcohol supply step (S200) supplies alcohol into the internal space (101c) of the cooking fume collector (101) by opening either the first stopper (102) or the second stopper (103). The alcohol is selected from methanol, ethanol, propanol, and butanol. According to one embodiment, the alcohol supply step (S200) injects 200 μL of methanol into the internal space (101c) of the cooking fume collector (101). When the alcohol supply step (S200) is completed, either the first stopper (102) or the second stopper (103) is closed to store the cooking fume collector (101) in a sealed state.

[0058] The non-catalytic derivatization reaction performing step (S300) performs the non-catalytic derivatization reaction by heating the cooking fume collector (101). Specifically, the non-catalytic derivatization reaction performing step (S300) heats the temperature of the internal space (101c) of the cooking fume collector (101) to 300°C to 500°C, and maintains the temperature of the internal space (101c) of the cooking fume collector (101) at 300°C to 500°C for 0.1 to 5 minutes.

[0059] The molecules of the alcohols above are phase-changed from liquid to gas due to the increase in temperature of the internal space (101c) of the cooking fume collector (101). As a result, the molecules of the alcohols in the gas phase increase in kinetic energy, and thus the number and intensity of collisions with the fat component increase, thereby causing a non-catalytic derivatization reaction. The non-catalytic derivatization reaction is a transesterification reaction between the alcohols in the gas phase and the fat component in the liquid phase, thereby converting the fat component in the liquid phase into a fatty acid alkyl ester in the gas phase.

[0060] The sample analysis step (S400) above qualitatively and quantitatively analyzes the fatty acid alkyl ester produced by the non-catalytic derivatization reaction. In one embodiment, the sample analysis step (S400) qualitatively and quantitatively analyzes the fatty acid alkyl ester using gas chromatography (GC).

[0061]

[0062] FIG. 6 is a graph showing the conversion rate of fatty acid methyl ester according to the temperature of the internal space of a cooking fume collector in a non-catalytic derivatization reaction performing step according to one embodiment of the present invention.

[0063] Referring to FIG. 6, the graph shows the conversion rate of a fat component into fatty acid methyl ester according to the temperature of the internal space (101c) of the cooking fume collector (101), and the x-axis represents the temperature of the internal space (101c) of the cooking fume collector (101), and the y-axis represents the conversion rate of fatty acid methyl ester (FAME yield) and the composition ratio of fatty acid methyl ester (FAME composition ratio).

[0064] Looking at the graph, it can be confirmed that as the temperature of the internal space (101c) of the cooking fume collector (101) increases from 200℃ to 360℃, the conversion rate of fatty acid methyl ester increases from 0% to a maximum of 97.2%, and it can be confirmed that the efficiency of the non-catalytic derivatization reaction is maximized at high temperatures. In addition, since the composition ratio of fatty acid methyl ester (FAME composition ratio) is constant regardless of the temperature of the internal space (101c) of the cooking fume collector (101), it can be confirmed that no deterioration of the sample due to thermal decomposition occurs when the temperature of the internal space (101c) of the cooking fume collector (101) is between 200℃ and 360℃. It can be confirmed through the graph that the optimal temperature of the internal space (101c) of the cooking fume collector (101) at which fat components are converted into fatty acid methyl ester is 360℃.

[0065]

[0066] Figure 7 is a graph showing the conversion rate of fatty acid methyl ester according to the amount of sample used in a non-catalytic derivatization reaction according to one embodiment of the present invention. In this experiment, soybean oil was used as a substitute for the fat component contained in cooking fumes. The graph shows the conversion rate of fatty acid methyl ester according to the amount of soybean oil used in the non-catalytic derivatization reaction.

[0067] Referring to Fig. 7, the graph shows the conversion rate of fat methyl ester through the non-catalytic derivatization reaction according to the amount of soybean oil as a sample in the non-catalytic derivatization reaction performance step, and the x-axis represents the amount of soybean oil, and the y-axis represents the conversion rate of fat methyl ester (FAME Yield).

[0068] Examining the graph, we can see that the conversion rate of fatty acid methyl esters remains above 95% when up to 20 mg of soybean oil is used. Furthermore, the conversion rate of fatty acid methyl esters gradually decreases after 20 mg of soybean oil is used.

[0069] Through the graph, it can be confirmed that the optimal conversion rate of fatty acid methyl ester can be achieved when the amount of soybean oil is 20 mg or less in the non-catalytic derivatization reaction performance step (S300).

[0070]

[0071] FIGS. 8 to 11 are drawings for explaining a cooking fume analysis step according to one embodiment of the present invention.

[0072] Referring to Fig. 8, the sample analysis step (S400) performs qualitative and quantitative analysis of cooking fumes generated during the process of roasting duck meat in a cooking facility. The graph shows the composition of fatty acid methyl esters (FAMEs) according to the time (Retention time) for the fat component of the sample to pass through the column and reach the detector in gas chromatography, and the x-axis represents the time (Retention time) for each component of the sample to pass through the column and reach the detector in gas chromatography, and the y-axis represents the detection response degree of fatty acid methyl esters (FAMEs).

[0073] Looking at the graph, the retention time for each component of the sample to pass through the column and reach the detector in gas chromatography is about 25 to 35 minutes, and the presence or absence of five fatty acid methyl esters (C16:0, C16:1, C18:0, C18:1, C18:2) can be confirmed qualitatively, and the total concentration value (quantitative value) of the fatty acid methyl esters is 5,184 You can check it with .

[0074] Referring to Fig. 9, the sample analysis step (S400) performs qualitative and quantitative analysis of cooking fumes generated during the process of grilling pork in a cooking facility. Looking at the graph, the retention time (time for the fat component of the sample to pass through the column and reach the detector) in gas chromatography is about 25 to 35 minutes, and four qualitative (presence) fatty acid methyl esters (C16:0, C18:0, C18:1, C18:2) can be confirmed, and the total concentration value (quantitative) of the fatty acid methyl esters is 3,552 You can check it with .

[0075] Referring to Fig. 10, the sample analysis step (S400) performs qualitative and quantitative analysis of cooking fumes generated during the process of grilling fish in a cooking facility. Looking at the graph, the retention time for each component of the sample to pass through the column and reach the detector in gas chromatography is about 25 to 35 minutes, and four qualitative (presence) fatty acid methyl esters (C16:0, C18:0, C18:1, C18:2) can be confirmed, and the total concentration value (quantitative) of the fatty acid methyl esters is 1,722. You can check it with .

[0076] Referring to Fig. 11, the sample analysis step (S400) performs qualitative and quantitative analysis of cooking fumes generated during the process of frying shrimp in a cooking facility. Looking at the graph, the retention time for each component of the sample to pass through the column and reach the detector in gas chromatography is about 25 to 35 minutes, and four qualitative (presence) fatty acid alkyl esters (C16:0, C18:0, C18:1, C18:2) can be confirmed, and the total concentration value (quantitative) of the fatty acid methyl esters is 1,348 You can check it with .

[0077]

[0078] FIG. 12 is a graph showing the conversion rate of fatty acid methyl ester and the composition ratio of fatty acid alkyl ester according to the temperature of the internal space of a cooking fume collector when biochar containing inorganic matter is used as an internal adsorbent of a cooking fume collector in a non-catalytic derivatization reaction performing step according to another embodiment of the present invention.

[0079] Referring to Fig. 12, the adsorbent (104) may be provided as biochar (PWRB-600) obtained by pyrolyzing peanut waste at a pyrolysis temperature of 600°C or biochar (PWRB-700) obtained by pyrolyzing peanut waste at a pyrolysis temperature of 700°C. The graph can compare the conversion rate (FAME Yield) of fatty acid methyl ester and the composition ratio of fatty acid methyl ester (FAME composition ratio) according to the adsorbent (104) provided as biochar and the adsorbent (104) provided as silica in one embodiment of the present invention. Here, the x-axis represents the temperature of the internal space (101c) of the cooking fume collector (101), and the y-axis represents the conversion rate of fatty acid methyl ester and the composition ratio of fatty acid methyl ester (FAME composition ratio).

[0080] Looking at the graph, the adsorbent (104) provided as the biochar has a conversion rate of fatty acid methyl ester of about 96% or more of the fat component at about 300°C. It can be confirmed that the adsorbent (104) of the biochar has a higher conversion rate of fatty acid methyl ester at a lower temperature than the adsorbent (104) of the silica. In addition, the adsorbent (104) of the biochar of PWRB-700 has a higher conversion rate of fatty acid methyl ester than the adsorbent (104) of the biochar of PWRB-600 at the same temperature of the internal space (101c) of the cooking fume collector (101), so it can be confirmed that the adsorbent (104) of the biochar of PWRB-700 has the best performance.

[0081] In addition, the silica adsorbent (104) can be confirmed to have a constant composition ratio of fatty acid methyl ester when the temperature of the internal space (101c) of the cooking fume collector (101) is from about 270°C to about 390°C, the biochar adsorbent (104) of PWRB-600 can be confirmed to have a constant composition ratio of fatty acid methyl ester when the temperature of the internal space (101c) of the cooking fume collector (101) is from about 120°C to about 390°C, and the biochar adsorbent (104) of PWRB-700 can be confirmed to have a constant composition ratio of fatty acid methyl ester when the temperature of the internal space (101c) of the cooking fume collector (101) is from about 70°C to about 390°C.

[0082] The adsorbent (104) of the biochar can convert the fatty component into fatty acid methyl ester at a lower temperature than the adsorbent (104) of silica through the alkaline component contained in the biochar. The alkaline component of the adsorbent (104) of the biochar can be confirmed through [Table 1].

[0083]

[0084] K(wt%)Mg(wt%)Ca(wt%)Total(wt%)PWRB-6002.2970.9120.8884.097PWRB-7002.3310.9610.8114.103

[0085] As can be seen from [Table 1], the biochar adsorbent (104) of PWRB-700 has the largest total amount of alkaline components (K, Mg, Ca) than the biochar adsorbent (104) of PWRB-600. Therefore, the alkaline components can play a catalytic role in the non-catalytic derivatization reaction, thereby improving the reaction speed and efficiency.

[0086]

[0087] While the present invention has been described in detail using preferred embodiments, the scope of the present invention is not limited to the specific embodiments described above, and should be interpreted in accordance with the appended claims. Furthermore, those skilled in the art will appreciate that numerous modifications and variations are possible without departing from the scope of the present invention.

[0088] The present invention can be used to quantitatively and qualitatively analyze the components of cooking fumes generated during the cooking process.

Claims

1. A cooking fume adsorption unit that adsorbs at least one sample of gas, liquid, or a mixture of the gas and the liquid; and Including a flow control unit for controlling the flow rate of the sample into the interior of the cooking fume adsorption unit, The above cooking fume adsorption part is, A cooking fume collector made of metal having an internal space communicating with an inlet and an outlet; and A cooking fume capture and analysis device comprising an adsorbent made of a porous material provided in the internal space.

2. In paragraph 1, The above cooking fume adsorption part is, A first plug that can be combined with the above cooking fume collector and opens and closes the inlet; and It can be combined with the above cooking fume collector and further includes a second plug for opening and closing the outlet. Further comprising a sample analysis unit for analyzing the components of the sample adsorbed in the above cooking fume adsorption unit, The above sample analysis section An alcohol supply unit for supplying alcohol into the above cooking fume collector; and A cooking fume capturing and analyzing device including a heater that heats the cooking fume collector while the first plug and the second plug are coupled to the cooking fume collector.

3. In paragraph 2, A cooking fume capturing and analyzing device in which the first plug and the second plug are screw-connected to the cooking fume collector.

4. In paragraph 2, The above alcohol is a cooking fume capture and analysis device selected from methanol, ethanol, propanol and butanol.

5. In paragraph 2, 6. In paragraph 2, A cooking fume capture and analysis device wherein the adsorbent is selected from among a porous or macroporous body including silica, alumina, zeolite, activated carbon, and biochar.

7. In paragraph 6, A cooking fume capture and analysis device further comprising quartz cotton provided in front and behind the adsorbent inside the cooking fume capture device, the quartz cotton fixing the adsorbent.

8. A step of adsorbing at least one sample among gas, liquid, or a mixture of the gas and the liquid onto an adsorbent made of a porous material provided inside a cooking fume collector; A step of supplying alcohol into the interior of the above cooking fume collector; A step of heating the cooking fume collector while the cooking fume collector is sealed to perform a non-catalytic derivatization reaction; and A method for capturing and analyzing cooking fume, comprising a step of analyzing a sample on which the above non-catalytic derivatization reaction has been performed.

9. In paragraph 8, The sealing of the above cooking fume collector is: A cooking fume capturing and analyzing method comprising: sealing the inlet by screwing a first stopper into the cooking fume collector having an inlet and an outlet; and sealing the outlet by screwing a second stopper.

10. In paragraph 8, The step of performing the above non-catalytic derivatization reaction is: A cooking fume collection and analysis method wherein the internal temperature of the above cooking fume collector is heated to 300°C to 500°C.

11. In Article 10, A method for capturing and analyzing cooking fume, wherein the internal temperature of the cooking fume collector is maintained at 300°C to 500°C for 0.1 to 5 minutes.

12. In paragraph 8, A method for capturing and analyzing cooking fumes, wherein the alcohol is selected from methanol, ethanol, propanol, and butanol.

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