Issues related to the combination of dimethyl ether and methanol

About 1.4 tons of methanol are required for one ton of dimethyl ether

:Handshake: Regarding the DME plant that is needed to accompany a 100,000-ton per year monohydric alcohol production facility, my suggestion is to opt for a 100,000-ton per year plant; this way, there will still be a shortage of 40,000 tons of methanol, which can be purchased from the market. This approach makes it easier to operate the facility and results in lower consumption. Another option is to install two sets of DME units, namely 2. 50,000 tons and 50,000-ton plants – in that case, they are fully sufficient for self-production and self-use. However, investment in civil engineering is rather wasteful. :handshake :handshake

It is no longer recommended to use vessels of 100,000 tons – they consume too much energy, and the National Development and Reform Commission will not approve such projects

It is recommended to build a DME plant with an annual production capacity of 100,000 tons: 1. A DME plant with an annual production capacity of 100,000 tons is currently the most mature technology in China; several companies have already put such plants into operation, and they operate reliably with no technical risks involved. 2. The facility becomes competitive only when it reaches a certain scale; an annual production capacity of 10,000 tons is likely to be the economically viable scale at present, and it should not be too small. 3. The source of methanol is not an issue; in recent years, China has added more than 2 million tons of methanol production capacity each year. 4. The poster also needs to consider the possibility of expanding the methanol project. 5. \"Plan once and implement in stages\" is a basic requirement for project construction.