Carbon-based microreactor, and preparation method and application thereof

A method for preparing a carbon-based microreactor, comprising the following steps:

• I:
• preparation of a carbon monolithic column carrier material:
• soaking cylindrical wood of different sizes in metal ion solution for 24 h, and then taking out and drying at 60-80° C.;
• then introducing an inert gas to perform heating and carbonization by a heating rate of 3-10° C./min on the wood at a carbonization temperature of 300-1000° C.;
• and calcining for 3-6 h to obtain the carbon monolithic column;
• II:
• preparation of a microchannel carbon column:
• placing the carbon monolithic column obtained in step I in a column tube;
• filling a gap in the column tube with heat-resistant glue;
• placing the column tube at a room temperature until the glue is fully solidified;
• and then loading the catalyst on the carbon monolithic column to obtain the microchannel carbon column;
• and
• III:
• construction of a microreactor:
• connecting the microchannel carbon column obtained in step II is to a preheating coil and a sampling pump to obtain the carbon-based microreactor;
• wherein in step I:
• the cylindrical wood comprises basswood, poplar, birch, oak, paulownia, pine, teak, cherry, maple or fir;
• the metal ion solution comprises zinc chloride solution, nickel chloride solution, ferric chloride solution, cupric chloride solution, aluminum chloride solution, zinc sulfate or aluminum sulfate solution;
• the inert gas comprises N2, Ar or CO2;
• in step II:
• the column tube material comprises stainless steel, quartz, carbon steel or polytetrafluoroethylene;
• the heat-resistant glue comprises polytetrafluoroethylene, hot melt glue, solid sol or epoxy resin;
• the catalyst is an enzyme catalyst;
• the enzyme catalyst comprises one or more of lipase, phospholipase, protease, oxidase, amylase, and cellulase;
• a method for loading the enzyme catalyst comprises an adsorption method, an embedding method, a covalent bonding method, a crosslinking method or a metal chelation method.