Weekly Topic for January 2
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This post was last edited by Yan Qiusheng on 2011-1-3 08:23. How can the utilization efficiency of fuel be improved during the gas production process using the fixed-bed batch gasification method? Note: We hope that all forum users will not hide the content in their replies, as this is the rule of the forum.
This post was last edited by Chemical Gas Purification on 2011-1-6 at 17:09: 1. Minimize the content of gangue; 2. Increase the furnace temperature as much as possible; 3. Raise the temperature of the steam used for gas production; 4. Reduce the amount of foam present.
This post was last edited by Chemical Gas Purification on 2011-1-6 17:09. Learned from...
This post was last edited by Chemical Gas Purification on 2011-1-6 at 17:10. This is precisely the issue of how to reduce the consumption of raw coal; in gas production, the \"three highs and one low\" approach is generally used, namely high furnace temperature, high carbon layer thickness, high air volume, and short blowing time. It depends specifically on the furnace type and coal quality.
Increase the steam decomposition rate; lower the temperature in the upper airways; reduce the carbon content in the ash; minimize slag removal from the gas generator
Control the appropriate water-to-carbon ratio, adjust the gas-to-air ratio properly, and make effective use of flue gas to preheat the feedstock
They all replied that it’s quite difficult to perform the operation alone
Reply to 7# msdlht: Please explain what exactly makes it difficult. This is also a discussion – we can’t just say that the operation is difficult and that’s it.
Strong short bursts of air are used to increase the blowing intensity while ensuring that the furnace does not tip over, along with superheated steam and other methods. Heating with air introduced into the furnace and preheating of coal fed into the furnace are adopted.
This post was last edited by Chemical Gas Purification on 2011-1-7 at 06:39. It is indeed difficult to adjust the gas generation rate of a furnace, as there are too many external factors at play. However, the most important thing is to ensure the quality of the coal fed into the furnace; it’s necessary to know what type of coal is being used, its fixed carbon content, volatile matter content, ash melting point, and calorific value. After determining the quality of the coal, other factors such as air pressure, electricity supply, steam volume, air temperature, and humidity also affect the gas generation rate of the furnace.