Study On Gasification Reaction Of Antibiotic Residue

Biomass energy can be regenerated, in line with the requirements of sustainable development. With the increasingly severe energy and environmental problems, more and more attention has been paid to the effective access of biomass energy. Hydrogen production from biomass gasification in supercritical water is a newly developing technology about energy conversion and utilization in recent years. It is highly concerned,due to its advantages such as fast response, high gasification rate, clean process and so on. Traditional bacteria residue treatment methods such as incineration,landfill, as feed additives, will cause a lot of problems,including the pollution of the atmosphere and soil environment, waste of resources, a threation to human health and other issues. So it has become the main research direction to find a kind of method which can realize harmless and resource utilization. Supercritical water gasification technology is a new technology which can effectively deal with the biomass. In this paper, based on the experimental method, the supercritical water vapor antibiotic residues were studied, and the experiment was verified and predicted with simulation.In this paper, the experiment of the gasification of bacteria residue in supercritical water was carried out in an autoclave. The effects of temperature,pressure, concentration, reaction time and catalyst on the product distribution, yield and gasification rate were studied. The main experimental reaction conditions are as follows. Temperature(350 ℃~450 ℃), pressure(26.8 MPa~36 MPa), concentration(5 %~20 %), reaction time(15 min~75 min). In the discussion of the results, we have made a comparative analysis of the factors mentioned above, in order to obtain the most advantageous conditions for the supercritical gasification of bacteria residue.The experimental results show that the main gas products of bacteria residue gasification areCH4、H2、CO2、C2H4. Considering the influence on the gasification rate,hydrogen yield and hydrogen gasification rate etc. The most conducive condition to bacteria residue of gasification in supercritical water is that reaction temperature is450 ℃, reaction pressure is 28 Mpa, bacteria residue concentration is 10 %, residence time of reaction time is 45 min. At the same time, in order to preliminary research on catalyst of supercritical gasification reaction, we add the proper amount of K2CO3 or NaOH.It is found that the catalyst added effects on the gasification reaction significantly, and the catalytic effect of different catalysts are also different. Therefore,the choice and dosage of catalyst are very important. Finally, based on the neural network model, the simulation and prediction to the bacteria residue of gasification in supercritical water were carried out, and the model was proved to be feasible.