阅读说明：本技术 一种废弃物焚烧处理二氧化碳排放的测算方法 (Method for measuring and calculating emission of carbon dioxide generated by incineration treatment of waste ) 是由 马占云 冯鹏 杨鹊平 高文康 严薇 刘倩 徐建立 高庆先 付加锋 于 2021-08-06 设计创作，主要内容包括：本发明公开了一种废弃物焚烧处理二氧化碳排放的测算方法,涉及温室气体排放的检测领域,能够针对废弃物焚烧排放的二氧化碳气体进行准确的测算,具体方案为：包括以下步骤：S1：将废弃物焚烧尾气的初级气体导入至一级处理室；S2：一级处理室中使用氢氧化钠溶液进行处理,将初级气体中的硫氧化物中和,得到含有一氧化碳和二氧化碳混合气体的二级气体,将二级气体导入至二级处理室；S3：使用废弃物焚烧过程产生的热量对二级处理室进行加热,将二级气体中一氧化碳转换为二氧化碳,得到三级气体,然后将三级气体导入至检测室。本发明提供的废弃物焚烧处理二氧化碳排放的测算方法能够有效获取二氧化碳的排放量。(The invention discloses a method for measuring and calculating the emission of carbon dioxide generated by burning waste, which relates to the field of detection of greenhouse gas emission, can accurately measure and calculate the emission of the carbon dioxide generated by burning waste, and has the specific scheme that: the method comprises the following steps: s1: introducing primary gas of waste incineration tail gas into a primary treatment chamber; s2: treating the primary treatment chamber by using a sodium hydroxide solution, neutralizing sulfur oxides in the primary gas to obtain a secondary gas containing a mixed gas of carbon monoxide and carbon dioxide, and introducing the secondary gas into the secondary treatment chamber; s3: and heating the secondary treatment chamber by using heat generated in the waste incineration process, converting carbon monoxide in the secondary gas into carbon dioxide to obtain tertiary gas, and then introducing the tertiary gas into the detection chamber. The method for measuring and calculating the emission of the carbon dioxide generated by burning the waste can effectively obtain the emission of the carbon dioxide.)

1. A method for measuring and calculating the emission of carbon dioxide generated by burning waste is characterized by comprising the following steps:

s1: introducing primary gas of waste incineration tail gas into a primary treatment chamber;

s2: treating the primary treatment chamber by using a sodium hydroxide solution, neutralizing sulfur oxides in the primary gas to obtain a secondary gas containing a mixed gas of carbon monoxide and carbon dioxide, and introducing the secondary gas into the secondary treatment chamber;

s3: heating the secondary treatment chamber by using heat generated in the waste incineration process, converting carbon monoxide in secondary gas into carbon dioxide to obtain tertiary gas, and then introducing the tertiary gas into the detection chamber;

s4: the detection chamber detects the content of carbon dioxide in the three-level gas, and the specific detection method comprises the following steps: the method comprises the steps that a visible light source, a light source receiving device and a temperature sensor are arranged, the visible light source and the light source receiving device penetrate through three-stage gas, the temperature sensor is used for measuring the real-time temperature in a detection chamber, and the content of carbon dioxide is judged in real time according to the illumination intensity of the light source obtained by the light source receiving device;

s5: and integrating the carbon dioxide content information acquired in real time to obtain the whole carbon dioxide emission.

2. The method for measuring and calculating the emission of carbon dioxide generated by incinerating waste according to claim 1, wherein in the step S4, the calculation relationship between the illumination intensity of the light source and the carbon dioxide content obtained by the light source receiving device is obtained by the following method:

t1: setting a visible light source and a light source receiving device, introducing carbon dioxide with different concentrations, receiving the illumination intensity of the visible light source through the light source receiving device, and drawing a curve of the concentration of the carbon dioxide and the illumination intensity;

t2: setting a plurality of temperature range intervals, and implementing the T1 step in different temperature range intervals to obtain corresponding curves of carbon dioxide concentration and illumination intensity;

t3: and obtaining the final emission of the carbon dioxide according to the relation between the carbon dioxide concentration and the illumination intensity curve at different temperatures.

3. The method for measuring and calculating the emission of carbon dioxide generated by incineration of waste according to claim 1, wherein in the step of S1, a filtering device is arranged before the primary gas is introduced into the primary treatment chamber, a filter screen is arranged in the filtering device, the filter screen is used for shielding flying solid particles generated in the incineration of waste, and then the filtered gas is introduced into the primary treatment chamber again.

4. The method for measuring and calculating the emission of carbon dioxide generated by incineration of waste according to claim 3, wherein a recovery device (1) is arranged at the bottom of the primary treatment chamber, and the recovery device (1) is detachably connected with the primary treatment chamber.

5. The method for measuring and calculating the emission of carbon dioxide generated by incineration of waste according to claim 1, wherein in the step of S2, the secondary processing chamber comprises a gas inlet (2) at the bottom and a gas outlet (3) at the top, a sodium hydroxide spraying device (4) is hung at the top of the secondary processing chamber, and the primary gas is converted into the secondary gas after being sprayed with the sodium hydroxide liquid, and then the secondary gas flows from the gas outlet (3) to the secondary processing chamber.

6. The method for measuring and calculating the emission of carbon dioxide generated by incineration of waste according to claim 1, wherein the detection chamber is communicated with a temperature control device, the temperature control device is a gas-gas exchanger or a gas-liquid exchanger, and the temperature control device is provided with a carbon dioxide outlet.

Technical Field

The invention relates to the field of detection of greenhouse gas emission, in particular to a method for measuring and calculating carbon dioxide emission in waste incineration treatment.

Background

In both daily life and industrial production of people, and in medical industry, various wastes are generated. The current way people dispose of waste includes incineration. During incineration, carbon dioxide gas is inevitably generated, wherein carbon dioxide generated by combustion of fossil components in the incinerated waste is taken into account in the total greenhouse gas emission amount, and carbon dioxide generated by combustion of biological components in the waste is biogenic and is carbon neutral, which is not taken into account in the total greenhouse gas emission amount. The global greenhouse effect is aggravated due to the emission of a large amount of greenhouse gases, and even the consequences of increased plant diseases and insect pests, rising sea level, abnormal climate, increased ocean storm, drought land, increased desertification area and the like can be caused.

Measurement and calculation of greenhouse gas emission are basic work for coping with climate change and are necessary conditions for realizing urban low-carbon development, main emission sources of greenhouse gases can be identified through measurement and calculation, the current emission situation of each department is known, the potential for slowing down in the future is predicted, and the method is helpful for making coping measures.

The waste treatment is an important part of the total greenhouse gas emission, and therefore, the calculation and statistics of the carbon dioxide emission of the incineration treatment waste are required. Therefore, a scientific, precise and efficient method for measuring and calculating greenhouse gas emission is urgently needed, the emission of carbon dioxide generated by incineration is comprehensively and effectively measured and calculated, and the method contributes to low-carbon development of China.

Disclosure of Invention

In order to solve the technical problems, the invention provides a method for measuring and calculating the emission of carbon dioxide generated by burning waste, which comprises the steps of firstly distinguishing the generation amount of biogenic factors and fossil factors according to the components of the waste, calculating the proportion, then applying the device and the method to accurately measure and calculate the carbon dioxide gas emitted by burning the waste, and distinguishing the fossil factors and the biogenic factors according to the proportion. The measuring and calculating method is simple, the device can also recover oxysulfide generated by waste incineration, and better economy can be realized while air pollution is avoided.

The technical purpose of the invention is realized by the following technical scheme:

a method for measuring and calculating the emission of carbon dioxide generated by burning waste comprises the following steps:

s1: introducing primary gas of waste incineration tail gas into a primary treatment chamber;

s2: treating the primary treatment chamber by using a sodium hydroxide solution, neutralizing sulfur oxides in the primary gas to obtain a secondary gas containing a mixed gas of carbon monoxide and carbon dioxide, and introducing the secondary gas into the secondary treatment chamber;

s3: heating the secondary treatment chamber by using heat generated in the waste incineration process, converting carbon monoxide in secondary gas into carbon dioxide to obtain tertiary gas, and then introducing the tertiary gas into the detection chamber;

s4: the detection chamber detects the content of carbon dioxide in the three-level gas, and the specific detection method comprises the following steps: the method comprises the steps that a visible light source, a light source receiving device and a temperature sensor are arranged, the visible light source and the light source receiving device penetrate through three-stage gas, the temperature sensor is used for measuring the real-time temperature in a detection chamber, and the content of carbon dioxide is judged in real time according to the illumination intensity of the light source obtained by the light source receiving device;

s5: and integrating the carbon dioxide content information acquired in real time to obtain the whole carbon dioxide emission.

In the scheme, tail gas generated by burning wastes is collected in a centralized manner, all the tail gas is collected and guided into a primary treatment chamber, the tail gas is mixed with a sodium hydroxide solution to remove oxysulfide, a large amount of heat is released, and the released heat preheats a mixed gas of carbon monoxide and carbon dioxide; the remaining hot carbon monoxide and carbon dioxide containing gas is then introduced into a secondary treatment chamber; in the secondary treatment chamber, carbon monoxide is converted into carbon dioxide by heating, and the conversion of the carbon monoxide is realized by taking the heat generated by burning wastes as a heating source of the secondary treatment chamber, so that energy can be effectively saved; in the detection chamber, other conditions are the same, such as temperature, and the illumination intensity of the visible light source obtained by the light source receiving device is different under the condition of different concentrations of carbon dioxide, so that the final measurement of the carbon dioxide is realized.

As a preferable scheme, in the S4 process, the calculation relationship between the illumination intensity of the light source and the carbon dioxide content acquired by the light source receiving device is acquired by the following method:

t1: setting a visible light source and a light source receiving device, introducing carbon dioxide with different concentrations, receiving the illumination intensity of the visible light source through the light source receiving device, and drawing a curve of the concentration of the carbon dioxide and the illumination intensity;

t2: setting a plurality of temperature range intervals, and implementing the T1 step in different temperature range intervals to obtain corresponding curves of carbon dioxide concentration and illumination intensity;

t3: and obtaining the final emission of the carbon dioxide according to the relation between the carbon dioxide concentration and the illumination intensity curve at different temperatures.

In the preferred embodiment, a curve relation diagram of the carbon dioxide concentration and the illumination intensity is obtained through the modeling, and the carbon dioxide concentration is accurately measured by setting different temperatures.

Preferably, in the S1 process, a filtering device is provided before the primary gas is introduced into the primary treatment chamber, a filtering net is provided in the filtering device, the filtering net is used for shielding flying solid particles generated in waste incineration, and then the filtered gas is introduced into the primary treatment chamber again.

In above-mentioned preferred scheme, through setting up filter equipment, filter the solid particle, avoid the solid particle to follow under the drive of thermal current and enter into the primary treatment room in, the condition of influence treatment effect appears.

As a preferred scheme, the bottom of the primary treatment chamber is provided with a recovery device, and the recovery device is detachably connected with the primary treatment chamber.

In the above preferred embodiment, by providing the recovery device, the excess sodium hydroxide solution and the neutralized sulfide can be collected, so that the generated sulfur oxides are prevented from causing environmental pollution, and the recovered sulfur oxides can generate a certain economic value.

Preferably, in the S2 process, the secondary processing chamber includes a gas inlet at the bottom and a gas outlet at the top, a sodium hydroxide spraying device is hung at the top of the secondary processing chamber, and the primary gas is converted into the secondary gas after being sprayed with the sodium hydroxide liquid, and then flows to the secondary processing chamber from the gas outlet.

In above-mentioned preferred scheme, through setting up sodium hydroxide sprinkler, can effectively increase the contact surface of sodium hydroxide and primary gas, increase the utilization ratio of sodium hydroxide solution, improve oxysulfide's efficiency of getting rid of simultaneously.

Preferably, the detection chamber is communicated with a temperature control device, the temperature control device is a gas-gas exchanger or a gas-liquid exchanger, and the temperature control device is provided with a carbon dioxide outlet.

In above-mentioned preferred scheme, through setting up the interchanger, cool down the carbon dioxide gas of finally deriving, avoid causing the influence to the environment.

In conclusion, the invention has the following beneficial effects:

(1) the method for measuring and calculating the emission of the carbon dioxide generated by burning the waste can effectively obtain the emission of the carbon dioxide, and has the advantages of accurate calculation and simple process;

(2) the method for measuring and calculating the emission of the carbon dioxide generated by burning the wastes treats and recovers the generated oxysulfide, so that the economical efficiency can be improved while the environmental pollution is avoided;

(3) the method for measuring and calculating the emission of the carbon dioxide generated by burning the waste has high treatment efficiency and short treatment period.

Drawings

FIG. 1 is a flow chart of a method for measuring and calculating carbon dioxide emission in incineration of waste according to an embodiment of the present invention;

FIG. 2 is a schematic view of a primary processing chamber according to an embodiment of the present invention;

reference numerals:

1. a recovery device; 2. an air inlet; 3. an air outlet; 4. sodium hydroxide sprinkler.

Detailed Description

This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, within which a person skilled in the art can solve the technical problem to substantially achieve the technical result.

The terms in upper, lower, left, right and the like in the description and the claims are combined with the drawings to facilitate further explanation, so that the application is more convenient to understand and is not limited to the application.

The present invention will be described in further detail with reference to the accompanying drawings.

A method for measuring and calculating the emission of carbon dioxide generated by burning waste comprises the following steps:

s1: introducing primary gas of waste incineration tail gas into a primary treatment chamber;

s2: treating the primary treatment chamber by using a sodium hydroxide solution, neutralizing sulfur oxides in the primary gas to obtain a secondary gas containing a mixed gas of carbon monoxide and carbon dioxide, and introducing the secondary gas into the secondary treatment chamber;

s3: heating the secondary treatment chamber by using heat generated in the waste incineration process, converting carbon monoxide in secondary gas into carbon dioxide to obtain tertiary gas, and then introducing the tertiary gas into the detection chamber;

s4: the detection chamber detects the content of carbon dioxide in the three-level gas, and the specific detection method comprises the following steps: the method comprises the steps that a visible light source, a light source receiving device and a temperature sensor are arranged, the visible light source and the light source receiving device penetrate through three-stage gas, the temperature sensor is used for measuring the real-time temperature in a detection chamber, and the content of carbon dioxide is judged in real time according to the illumination intensity of the light source obtained by the light source receiving device;

s5: and integrating the carbon dioxide content information acquired in real time to obtain the whole carbon dioxide emission.

In the scheme, tail gas generated by burning wastes is collected in a centralized manner, all the tail gas is collected and guided into a primary treatment chamber, the tail gas is mixed with a sodium hydroxide solution to remove oxysulfide, a large amount of heat is released, and the released heat preheats a mixed gas of carbon monoxide and carbon dioxide; the remaining hot carbon monoxide and carbon dioxide containing gas is then introduced into a secondary treatment chamber; in the secondary treatment chamber, carbon monoxide is converted into carbon dioxide by heating, and the conversion of the carbon monoxide is realized by taking the heat generated by burning wastes as a heating source of the secondary treatment chamber, so that energy can be effectively saved; in the detection chamber, other conditions are the same, such as temperature, and the illumination intensity of the visible light source obtained by the light source receiving device is different under the condition of different concentrations of carbon dioxide, so that the final measurement of the carbon dioxide is realized.

As a preferable scheme, in the S4 process, the calculation relationship between the illumination intensity of the light source and the carbon dioxide content acquired by the light source receiving device is acquired by the following method:

t1: setting a visible light source and a light source receiving device, introducing carbon dioxide with different concentrations, receiving the illumination intensity of the visible light source through the light source receiving device, and drawing a curve of the concentration of the carbon dioxide and the illumination intensity;

t2: setting a plurality of temperature range intervals, and implementing the T1 step in different temperature range intervals to obtain corresponding curves of carbon dioxide concentration and illumination intensity;

t3: and obtaining the final emission of the carbon dioxide according to the relation between the carbon dioxide concentration and the illumination intensity curve at different temperatures.

In the preferred embodiment, a curve relation graph of the carbon dioxide concentration and the illumination intensity is obtained through the modeling, theoretically, the smaller the range of the temperature is, the more accurate the measured final data is, but in actual measurement, a plurality of relatively large range values are generally set, and then the carbon dioxide concentration in each range value is averaged, so that the input cost of the measuring device is reduced, and generally, when the error of the measured value is not more than 10%, the final measured data cannot be greatly influenced; moreover, a relatively stable temperature range can be formed in the measuring chamber through the reaction time of the sodium hydroxide and the primary gas and the temperature control in the heating process, and the final data measured in the temperature range can be more accurate; the concentration of the carbon dioxide is accurately measured by setting different temperatures; according to different areas, different altitudes, different visible lights and other factors, the obtained curve relationship between the carbon dioxide and the illumination intensity is different.

Preferably, in the S1 process, a filtering device is provided before the primary gas is introduced into the primary treatment chamber, a filtering net is provided in the filtering device, the filtering net is used for shielding flying solid particles generated in waste incineration, and then the filtered gas is introduced into the primary treatment chamber again.

In above-mentioned preferred scheme, through setting up filter equipment, filter equipment can carry out fine interception to the solid particle that the waste incineration in-process drove, avoids appearing the condition of slagging scorification in the primary treatment room, and filters solid particle, avoids solid particle to follow under the drive of thermal current and enters into the primary treatment room in, the condition of influence treatment effect appears.

As a preferred scheme, the bottom of the primary treatment chamber is provided with a recovery device 1, and the recovery device 1 is detachably connected with the primary treatment chamber.

In the above preferred embodiment, by providing the recovery device 1, the excess sodium hydroxide solution and the neutralized sulfur oxide can be collected, so that the generated sulfur oxide is prevented from polluting the environment, and the recovered sulfur oxide can generate a certain economic value; because the secondary treatment chamber needs to react in a sealed environment, the generated sulfur oxide and the residual sodium hydroxide solution can be led out through the leading-out device under the condition of not influencing the sealed environment, the reaction process of the secondary treatment chamber cannot be influenced by the arrangement, and the recovered sulfur oxide and the residual sodium hydroxide solution are not required to be stopped for treatment.

Preferably, in the process of S2, the secondary processing chamber includes a gas inlet 2 at the bottom and a gas outlet 3 at the top, a sodium hydroxide spraying device 4 is hung at the top of the secondary processing chamber, and the primary gas is converted into the secondary gas after being sprayed with the sodium hydroxide liquid and flows from the gas outlet 3 to the secondary processing chamber.

In above-mentioned preferred scheme, through setting up sodium hydroxide sprinkler 4, can effectively increase the contact surface of sodium hydroxide and primary gas, increase the utilization ratio of sodium hydroxide solution, improve the efficiency of getting rid of oxysulfide simultaneously.

Preferably, the detection chamber is communicated with a temperature control device, the temperature control device is a gas-gas exchanger or a gas-liquid exchanger, and the temperature control device is provided with a carbon dioxide outlet.

In above-mentioned preferred scheme, through setting up the interchanger, cool down the carbon dioxide gas of finally deriving, avoid causing the influence to the environment.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.