Catalytic Pyrolysis Of Modified Calcium Oxide Into Carbon From Corn Straw

This test with heating rate of corn stalk end more tepid solution test,merchandise,homemade catalyst and catalyst of catalytic pyrolysis catalyst modified test,by using Fourier transform infrared spectrometer,electrochemical workstation and BET specific surface area of toner surface area measurement,finally it is concluded that each product of catalyst application fields,and analyze its suitability as a carrier..In the cyclic voltammetry test,the activity of the products of commercial CaO catalytic pyrolysis is poor,and the thickness of the double electric layer is poor,while the activity of the products of self-made and modified CaO catalytic pyrolysis is good,and the double electric layer is regular.The activity of the three products in the alkaline electrolyte is higher than that in the neutral electrolyte,and the activity in the oxygen-rich condition is stronger than that in the oxygen-free environment,indicating that the three products have very good oxygen reduction activity.In the BET test,no isotherms of the self-made CaO catalytic pyrolysis products meet the requirements of BET test,indicating that they are non-mesoporous materials with low availability.The isotherm of pyrolysis products of commercial CaO is not closed,which indicates that some holes are not available when they are desorbed.The available aperture range is concentrated between 2nm and 4nm.The isothermal closure of the products of modified CaO catalytic pyrolysis indicates that most of the pores can be used.The available pore size is also concentrated between 2nm and 4nm,while the pore volume at 16nm is higher.At the same time,it has the properties of hydrotalcite and can be used as catalyst or catalytic carrier.Self-made CaO can easily absorb water vapor and CO₂.Modified CaO surface successfully bonded modifier,not easy to absorb water vapor,more easy to absorb CO₂.At low temperature zone,the catalytic effect of modified catalyst is poor,the second is self-made,the best effect is commercial catalyst,and the commercial catalyst has a good catalytic effect on the breaking reaction of alkane c-h bond at low temperature zone.In the middle and high temperature area,the activity of self-made catalysts has begun to decline,and the effect of modified catalysts has obviously improved,which has the largest catalytic effect on the pyrolysis reaction of three components,most functional groups have disappeared,and the catalytic effect of commercial catalysts has gradually weakened.