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The process gas for methanol synthesis is cooled to 35–40°C before entering the methanol separator; some plants use water for washing, while others do not. Is it good to wash the methanol separator with water?
It’s not good. Generally, the water vapor content in the recycled gas is very low; washing it disrupts the equilibrium of the syngas. Additionally, washing increases the risk of liquid entering the compressor, and it also has little effect on maintaining this equilibrium.
There is a demister screen at the top of the separator; generally, its ability to trap bubbles is sufficient. Moreover, with such high pressure in the circuit inside the separator, what water will be used for washing? ? ? Normally, the washing water is provided on the flash tank; in some designs, a packing layer is added at the top of the flash tank to use a small amount of water from the bottom of the tower for washing.
At the end of the last century, a company in Xi’an recommended methanol separators using the washing method to methanol producers; indeed, some methanol plants in the northwest region adopted such washing-type methanol separators. However, since a high-pressure circulation pump is required to inject deionized water to wash the recycled syngas, a coalescing filter element assembly must be added before the gas outlet of the separator; this results in high costs for auxiliary equipment and elevated operating expenses ; Furthermore, the addition of deionized water to the system results in higher post-treatment operating costs. To date, the methanol companies that have used this type of wash-type methanol separator have basically upgraded their original wash-type separation components by adopting the fan-blade type high-efficiency methanol separation internals. For information on related technologies and equipment, please visit http://bbs.hcbbs.com/thread-1354813-1-1.html.
"Methanol companies that previously used this type of wash-type methanol separator have essentially upgraded their original wash-type separation components by adopting the vane-type high-efficiency methanol separation internals. Please provide examples of the companies that fall under this category of \"essentially\" such companies.
I often interact with methanol production facilities, so we can have in-depth discussions.
How many users can name the high-efficiency methanol separation internals of the feather-leaf type?
Zhongtian Hechuang, Inner Mongolia Zhuozheng, Yankuang Ordos Energy Chemical, China National Coal Group Yulin Energy Chemical, Qinghai Zhonghao, Chongqing Kabele, Shenhua Baotou, Shenhua Ningxia Coal, Sinopec Chuanwei, and others.
On June 27, I had discussions with relevant parties in Jincheng, Shanxi, regarding the issue of adding water to the separator.
Some units have severe wax buildup, so a processor is installed. What is the difference in principle from a methanol separator?
You are the designers, right? What is the methanol production capacity? Could you please let me know which company’s project it is?