Why do many new methanol plants use Davie technology, and what are its advantages?
Thread Content
The new methanol plant uses Davie technology. How much superior is this technology to other technologies? Please give me some advice.
A single series has high synthesis pressure, high net value and large production capacity.
Nowadays, methanol plants are developing towards large-scale. DAVY’s synthesis tower is the smallest in size compared to methanol plants of the same scale and is easy to transport!
:Loveliness: Another feature of David's process technology is its high recovery and utilization rate of heat energy. Much higher than others.
The first two people said very well. It is said that the Kasari process is also good. 1.8 million tons of methanol only requires two reactors. Like Davy, I don’t know who knows it. Let’s talk about it in detail and share it with you to facilitate process selection. .
The methanol concentration of Davie's outlet is much lower than that of others, less than 6%, such as the design of Shenhua Baotou. The net value of methanol is low, the circulation volume is large, and the recovered heat is less. How can it be said that "the recovery and utilization rate of heat energy is very high". In turn, the consumption of circulating water* * Yes. The 6000MTPD used by David should have four synthesis towers and two loops. Each loop is insulated, one string is isothermal, and the other is isothermal. It can't be done without an investment of 1 billion. Those who use David are all rich people. It's like using SHELL coal gasification. If you have money, just burn it.
Can an expert explain the concept of net worth?
The one-way conversion rate of Davy is about 6%, which is much lower than that of Casali. Therefore, Davy uses a two-tower and semi-parallel process. Obviously, this increases the investment in equipment and the complexity of operation. So among the new installations that I know of, Casale has the most, Davy is second, Topsoe is third, and Lurgi is fourth. In fact, it should be said that Davy's technology is not very good and not as good as outside rumors. It’s just that Shenhua Coal-to-Liquids chose DAVY, so I had a preconceived feeling and it felt good.
DAVY's water-cooled methanol synthesis tower is basically the same as TOPSOE. TOPSOE has the most new methanol synthesis towers. CASALE and DAVY are relatively rare, and few companies in China use them.
I heard that if China, where Topology is located, can no longer get ammonia or methanol projects, Mr. Cui’s position will not be guaranteed. If Topology has many projects, it won’t be like this, haha!
The newly built project CASALE is definitely the largest. They use domestic catalysts, and the results are good, so they have a great price advantage in methanol projects exceeding 1,000 tons/day.