1. Overview
Organic waste gas is a common source of industrial pollution, and the organic compounds it contains can cause negative effects on the environment and human health. Therefore, it is very necessary to treat organic waste gas. Catalytic combustion furnace is an effective organic waste gas treatment equipment, which oxidizes and decomposes harmful substances in organic waste gas through the action of catalysts, so as to achieve the purpose of purifying waste gas. This article will detail the calculation method of the 100,000 air volume catalytic combustion furnace treatment air volume to help you better understand the performance and application of this equipment.
Second, the calculation of the air volume
The treatment air volume is one of the important performance indicators of the catalytic combustion furnace, which determines the amount of organic waste gas that the equipment can treat. In general, the following factors need to be taken into account in the calculation of the processing air volume:
Exhaust gas composition:Depending on the composition of organic exhaust gases, the types and concentrations of organic compounds contained in them will also vary. Therefore, it is necessary to calculate the treatment air volume based on the actual composition of the exhaust gas.
Processing Efficiency:The treatment efficiency of catalytic combustion furnace is usually above 90%, but the actual efficiency will be affected by a variety of factors, such as exhaust gas composition, temperature, pressure, etc. Therefore, it is necessary to determine the processing efficiency according to the actual situation.
Device Model:Different types of catalytic combustion furnaces have different processing capacity and structure, so it is necessary to determine the treatment air volume according to the equipment model.
Based on the above factors, the formula for calculating the treated air volume can be expressed as:
Treatment air volume = (organic waste gas flow rate treatment efficiency) (organic waste gas concentration gas density gas constant absolute temperature).
Where:
Organic waste gas flow: refers to the amount of organic waste gas passing through the catalytic combustion furnace per unit time, and the unit is m h;
Treatment efficiency: refers to the efficiency of the catalytic combustion furnace to purify the exhaust gas, usually more than 90%;
Organic waste gas concentration: refers to the concentration of organic compounds in organic waste gas, the unit is mg m;
Gas density: refers to the density of organic waste gas, the unit is kg m;
Gas constant: refers to the constant of organic waste gas, the unit is j (kg·k);
Absolute temperature: refers to the temperature of organic waste gas, in k.
3. Instance calculation
Suppose that the organic compounds contained in the organic waste gas produced by a factory are methanol, with a concentration of 500 mg m and a flow rate of 10,000 m h. The plant required a catalytic combustion furnace with a processing efficiency of 95%. According to the above formula, the processing air volume of this catalytic combustion furnace can be calculated as:
Handle airflow = (10000 95%) (500 1.)29 × 298.15 × 1.29 × 101.325）≈ 14478 m³/h
Fourth, summary
In this paper, the method and example of calculating the air volume of the 100,000 air volume catalytic combustion furnace of organic waste gas are introduced. By calculating the processing airflow, the type and specification of the catalytic combustion furnace can be determined to ensure that it can meet the actual needs of the plant. In practical application, it is also necessary to consider the influence of other factors such as the composition, temperature, pressure and other factors on the treatment efficiency, and regularly inspect and maintain the equipment to ensure its normal operation and treatment effect.