How should the carbon dioxide exhaust pipeline for air separation in coal chemical industries be designed?
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Let’s discuss an issue: in order to reduce the impact of coal chemical processing on air separation processes due to CO2 emissions, CO2 can be sent to distant locations for disposal. However, the volume of CO2 is large, the pressure is low, which requires extremely large pipelines! It’s difficult to design main corridors; alternatively, the decarburization vent pipes can be made very tall, but this makes construction challenging. And C02 is always high! Especially in places where the wind is a bit strong, which one is better?
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The Datang Duolun coal-to-olefins project features a CO2 emission tower located upstream of the air separation unit, which causes abnormal operation of the air separation system.
In 2010, Shenhua’s direct liquefaction plant launched the \"Industrial Demonstration Project for Carbon Dioxide Capture and Storage\" (CCS) in Inner Mongolia. This project involves capturing carbon dioxide from coal-to-oil production lines, liquefying it, and then storing it at a depth of 2,495 meters in an aquifer located about 8 kilometers away from the capture site, with an annual production capacity of 100,000 tons.
The location selection for air separation units is very important; attention should be paid to the surrounding areas – power centers, methanol plants, purification units, and gasification units must not be located in the upwind direction.
Stored underground, to be used later?
Is this considered a design flaw?
A serious mistake – an error in the overall layout. In \"Experiences and Lessons from the Construction of the Datang Inner Mongolia Dolun Coal Chemical Project,\" the first example of a lesson related to engineering design is the unreasonable selection of the site for the air separation plant.
Who would dare to withhold payment? Although Party A is in charge, can they guarantee that they won’t cooperate with the design firm in the future?
Haha! It seems that there are still owners who are worried about future upgrades and renovations!