Dalian University of Technology Low-temperature Methanol Wash

For volumes of less than 600,000 tons, Teacher Zhang in Dalian can handle it; the process is quite mature, and the patent fees are much lower compared to those abroad； 900,000 tons – he also said it’s possible to achieve higher volumes, but there are no results yet. If one has to make a choice, careful consideration is needed. However, Teacher Zhang will definitely go for 900,000 tons; it just depends on which company will be the first to try this.

We need to produce 1 million tons of methanol, and it’s likely that the low-temperature methanol washing process will require the technology from Dalian; it seems we’ll have to be the first ones to try this approach! Haha!

900,000 or 1 million tons would not correspond to a single system; it should be two systems of 450,000 or 500,000 tons or less

Supporting domestic products should be promoted; the key is that **we indeed need to provide support for them. Why hasn’t Microsoft split up? **Profit comes first!

Jiutai Energy Chemical’s Inner Mongolia branch uses technology from Dalian University of Technology, and it is still under construction. The technology provided by Dalian University of Technology is relatively inexpensive, but the scope of services offered is also limited. If you decide to use this technology, you will need a highly experienced design firm to prepare the construction drawings for you; otherwise, problems may arise. As for the contact information for Dalian University of Technology, I will send it to you via text message. This post was last edited by renchy2000 on 2009-2-18 08:22.]

Contact information for Professor Zhang Zeshui from Dalian University of Technology: 0411-88993979, 13050536002. E-mail: zswei@chem.dlut.edu.cn

Dalian University of Technology’s low-temperature methanol washing technology is quite good; as for the scale, it is necessary for the design firm, the technology provider, and the project owner to work together to address the issues related to the development of non-standardized scale technologies! Typically, complete sets of mature technologies are designed for plants producing 300,000 tons of synthetic ammonia. With the continuous upgrading of large-scale methanol production facilities in China, the low-temperature methanol washing technology has also seen corresponding scale improvements; versions suitable for capacities of 40, 50, and 60 tons have been developed, providing a wider range of options available. The domestic design firms have also performed well, forcing Linde and Lurgi to lower their prices!

:Dalian dares to do 2 million tons as well. They just do a simple calculation. Not to mention that the accuracy of their calculations is questionable, their calculations simply fail to detect the amplification issues in engineering applications. To put it bluntly. The key is to choose the right design institute. See if they have done similar-scale technology abroad. Even if you don’t buy any technology, they can still do it. Do you understand? This is the actual situation of low-temperature methanol washing in China! :L Actually, it’s really embarrassing

It can’t be said that either; don’t place too much faith in Lindlough. The methanol washing process itself is not some secret; Daguang can carry it out just as well as others, yet at a much lower cost, and that is something we should be proud of. Moreover, the technology developed by Da Gong has already been put into use in multiple companies, with excellent results. As far as I know, the methanol washing and nitrogen washing processes in Benxi have also been successfully put into operation; Teacher Zhang is very skilled in this area.

I wonder what the latest price in Dalian is for 600,000 tons of methanol? How much cheaper is it than Lurgi’s quote?

Does anyone know their prices? Feel free to share.

The process I work on was also developed by Dalian University of Technology, and it seems to be fine. I believe that the key to using a good process is to hire that design institute; in addition, I think it’s important to have people with experience in working with such processes involved. Since this is a new facility, there are many things that need to be modified, and proper planning during installation is crucial. If a good design institute and experienced workers are involved, it will save a lot of time in future work. The money that can be saved as a result can be in the 5-6 digit range, or even more – I know this from personal experience. I work in the coal chemical industry; problems can arise in the purification stage. If all the gas is vented into the atmosphere, then what’s burned in the flares is actually money – in fact, our scale of operations isn’t small at all; hundreds of thousands of yuan are spent each hour on this process. We’ve done this several times. I suggest you not save money on these two aspects.

Does anyone know which engineering company Dalian University of Technology is currently working with to promote its patented methanol washing technology? If Dalian University of Technology remains limited to PDP, it will only artificially hinder the advancement of domestic technologies. If working with a established engineering company, it is possible to effectively draw on the experience gained from the design, construction, and operation of previous facilities.

The project we are going to undertake now involves the production of 400,000 tons of coal-based feedstock, 700,000 tons of ammonia, and urea; again, the process technology used is that from Dalian University of Technology. The costs are indeed much lower compared to those of LINDE abroad, and in China, Huanqiu is also capable of carrying out this type of work