Original document(13 pages) Authorized document(8 pages) 中文版
    A kind of low energy consumption method for producing formol by the oxidative dehydrogenation of methanol to air under the action of silver catalyst mainly features that behind the rapid cooling waste heat boiler, a soft water preheating section utilizing high temp gas reaction product to preheat soft water is installed. The product gas out of the soft water preheating section is led in the shell of the superheater and the product gas out of the shell of the superheater is led in the tube of methanol evaporator, the product methanol vapor out of evaporator goes into the three-section countercurrent absorbing condencing tower. Over the catalyst layer of the reactor used in said process, a gas distributor constructed by screen plates is installed.
Application Number
92101137 Application Date
Title 名称 Prepn. of formaldehyde with low energy consumption
Publication Number
1066264 Publication Date
Approval Pub. Date Granted Pub. Date 1996.09.18
International Classification 分类号 C07C45/29,C07C47/04,C07C47/052
Applicant(s) Name
Huanan Polytechnical Univ.
Address 地址 510641
Inventor(s) Name 发明人 Dai Zigen, Hua Ben

ALarm unit in turbidity online examination with self-compensation for light variation of multiple tube pairs and examination methods
Non-pump sorption refrigerator
Smoke low-temperature residual heat utilization system with natural gas cooling-heating combined power device and operating method thereof
Light hydrocarbon separating method for liquefied natural gas with peak regulating function
Method for separating light hydrocarbon from liquified natural gas
Natural gas liquefying method for gas peak regulation and light hydrocarbon recovery
Regional cold supply system and its cold step utilizing method
Method for using cooling capacity of LNG with cooling media as medium and apparatus thereof
2,6-dimethyl-phenol and prepn. method
P-dichloco-benzene and prepn. method
Note:All patent data come from State Intellectual Property Office of the People's Republic of China. If there were discrepancies between here and the State Intellectual Property office, the later is more accurate. The patent data is only for public exchange and learning purposes. We are not responsible for the adverse consequences with unverified use of the data.