What are the components in the low variable condensate of direct conversion of natural gas into ammonia????
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What are the main substances in the low-variability condensate besides ammonia and nitrogen? Where are they mainly generated in the previous process? What are the main hazards of each substance to the system? Is there a good way to reduce its content? Please enlighten me!!!!!!!!!!!!!!!!!!!!!!!!
Highly variable ammonia nitrogen and low-variable methanol~~~ are probably lifted with steam~ This is how we use it~
The low-variation process condensate mainly contains NH3, CO2, methanol and a small amount of ethanol and amines. Ammonia is generated at high variation. The process condensate is generally stripped, and the treated liquid contains a small amount of NH3, CO2 and most of methanol, ethanol and amines. The condensate can be recycled after the treatment quality reaches the standard.
Nowadays, the steam stripping method is mostly used. I recently learned that there are other methods. I would like to know.
The low-variability process condensate of natural gas conversion mainly contains CO, CO2, H2, methane and a small amount of ethane. The process condensate is generally drained before starting the operation. Depending on the size of the device, large ones can be recycled. However, generally during normal operation, they are ignored and are cooled directly in the process condensate buffer tank. The content in the process condensate buffer tank can be recycled.
Mainly steam condensate； There are also small amounts of alcohol and ammonia.
Our factory analyzed that the low-variability process condensate mainly contains NH3, methanol and a small amount of ethanol and amines as impurities, with a total content of 3200PPM.
This post was last edited by ZZJJAA70 on 2009-11-15 21:55. This is mainly related to the side reactions of low-variability catalysts. In addition to the carbon monoxide shift reaction, methanol can also be generated on low-variability catalysts. Methanol may react with a small amount of ammonia in high-variability gas to form methylamine. Methanol can also be dehydrogenated to form formaldehyde, and formaldehyde can generate formic acid and methanol in hot alkaline water vapor. Therefore, low variable gas always contains trace amounts of methanol and other organic matter.