What are the main products resulting from the mature development of the methanol downstream industry?

Dimethyl ether, acetic acid, formaldehyde, methylamine, MTBE. . . . . . :)

Process: Typical companies – methanol dehydration to dimethyl ether: Shandong Linyi Jiutai; carbonyl synthesis to acetic acid: Shandong Yankuang Guotai; acetic anhydride: Lunan Fertilizer Factory (construction in progress). Methyl tert-butyl ether: Many companies are involved in this area, and it represents an important application for methanol; however, it is recommended not to pursue this project. (It’s banned abroad, and it will soon be banned in China as well.) For methanol-based gasoline, Shaanxi Huaton is, in my opinion, a good choice due to the profit margin available. As for dimethyl carbonate, I’m currently working on it, and there is also a significant profit margin potential

Dimethyl carbonate! ! No specific introduction either?

There are many downstream products of methanol; those with high profit margins include dimethyl carbonate, which is currently in the development stage. Dimethyl carbonate is a green chemical raw material. It can replace the highly toxic phosgene and the potentially hazardous methyl tert-butyl ether, possessing high practical value. In fact, dimethyl carbonate is synthesized using a variety of methods and has already been industrialized. It just has complex reactions, causes severe pollution, and is highly toxic. Carbonylation using inexpensive methanol is the most promising route currently under development. The reaction is as follows: 2CH3OH + CO + 0.5O2 === (CH3O)2CO + H2O. Water is produced in this reaction, so there is still room for improvement in order to achieve atomic economy. Additionally, for chemical plants, the urea method might be a better option; the reaction is as follows: CO(NH2)2 + 2CH3OH ====== (CH3O)2CO + 2NH3. The advantage of this reaction is that no water is produced, and the ammonia generated can be used to further synthesize urea. In my opinion, it is of great significance to carry out dimethyl ester synthesis in nitrogen fertilizer plants, especially those that also produce methanol, as the profit margins are highest there, given that many of their processing units are shared.

Dimethyl carbonate has high application value, but it is still used only in laboratories at present.

Currently, the production of dimethyl carbonate in our country exceeds demand, exports have declined, and competition at home is extremely fierce. There are currently several dimethyl carbonate manufacturers across the country, all of which use the transesterification process; the methanol oxidation carbonylation method and the urea method are not yet mature.

The market size for dimethyl carbonate is a significant issue; it has great potential, but downstream products still need to be developed. The co-production technology of ethylene glycol and dimethyl carbonate is good and attractive. (CH2)2O＋CO2 → (CH2O)2CO (CH2O)2CO＋2CH3OH → HOCH2CH2OH＋(CH3O)2CO

Cogeneration technology on the same floor. . . Using dimethyl ether to produce dimethyl carbonate is also a good option.

Formaldehyde and acetic acid are both good options, right?