Regarding the scale of the triethylene glycol dehydration unit
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I would like to ask the experts: what is the maximum capacity of single-column triethylene glycol dehydration units in China at present? I know that the Puguang gas field of Sinopec has a capacity of 3 million tons per day, and the Kela 2 field of CNPC has a capacity of 5 million tons per day. Are there any units with an even larger capacity? Are there any issues with triethylene glycol dehydration units that handle over 6 million per day? I would appreciate guidance from experts.
Coalbed methane levels are all around 1 million
Coalbed methane gathering stations are generally not large in scale
In my opinion, the reasons why the scale isn’t very large at present are as follows: 1. Limitations in gas supply – the scale cannot exceed what the gas supply allows； 2. Multiple columns operate in parallel, facilitating maintenance and adapting to production volume requirements ； 3. The larger the scale, the more difficult it is to manufacture absorption towers. Natural gas generally has a high pressure, which poses challenges regarding the thickness of the equipment walls, its weight, as well as the processing and inspection requirements; investment costs also need to be taken into account ； What we usually handle are projects with a capacity of 1 to 2 million cubic meters; currently, we are working on a facility with a capacity of 7.5 million cubic meters. Larger-scale projects are generally used for underground gas storage, and during production, high instantaneous output rates are required
Sinopec Puguang’s capacity is 6 million cubic meters per day. The scale is limited, first by manufacturing capacity and second by on-site transportation conditions.