High-calorific-value low-slagging biomass granular fuel and preparation method thereof
A biomass pellet, high calorific value technology, applied in the direction of biofuel, waste fuel, fuel, etc., can solve the problems of reducing the combustion efficiency of biomass briquette fuel, affecting the popularization and application of biomass briquetting fuel, affecting the normal operation of combustion equipment, etc. Improve molding properties and mechanical strength, increase active groups, and increase the effect of bonding force
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Embodiment 1
[0023] A method for preparing high calorific value and low slagging biomass pellet fuel, comprising the following steps:
[0024] S1. Add calcium carbonate and bacterial cellulose to water and disperse evenly to obtain a mixed suspension, wherein the mass ratio of calcium carbonate, bacterial cellulose and water is 10:3:100;
[0025] S2. Crush corn stalks to obtain straw powder, then mix the mixed suspension prepared in step S1 with the straw powder evenly at a mass ratio of 1.5:10, and obtain modified straw powder with a water content of 8% after drying;
[0026] S3, subjecting the modified straw powder prepared in step S2 to steam explosion treatment under the conditions of 110° C. and 1 MPa for 4 minutes, then washing and drying to obtain steam explosion modified straw powder;
[0027] S4. Mix the steam-exploded modified straw powder and n-octanol evenly at a mass ratio of 1:0.03, and stir and react for 4 hours at a temperature of 120° C. and a vacuum of 0.001 MPa to obtain...
Embodiment 2
[0030] A method for preparing high calorific value and low slagging biomass pellet fuel, comprising the following steps:
[0031] S1. Add calcium carbonate and bacterial cellulose to water and disperse evenly to obtain a mixed suspension, wherein the mass ratio of calcium carbonate, bacterial cellulose and water is 15:4.5:100;
[0032] S2. Crush corn stalks to obtain straw powder, then mix the mixed suspension prepared in step S1 with the straw powder evenly at a mass ratio of 1:10, and obtain modified straw powder with a water content of 12% after drying;
[0033] S3, subjecting the modified straw powder prepared in step S2 to steam explosion treatment at 120° C. and 1.2 MPa for 5 minutes, then washing and drying to obtain steam explosion modified straw powder;
[0034] S4. Mix the steam-exploded modified straw powder and n-octanol evenly at a mass ratio of 1:0.05, and stir and react for 3 hours at a temperature of 125° C. and a vacuum of 0.02 MPa to obtain a straw-based comp...
Embodiment 3
[0037] A method for preparing high calorific value and low slagging biomass pellet fuel, comprising the following steps:
[0038] S1. Add calcium carbonate and bacterial cellulose to water and disperse evenly to obtain a mixed suspension, wherein the mass ratio of calcium carbonate, bacterial cellulose and water is 20:5:100;
[0039] S2. Crush corn stalks to obtain straw powder, then mix the mixed suspension prepared in step S1 with the straw powder at a mass ratio of 0.5:10, and dry to obtain modified straw powder with a water content of 15%;
[0040] S3, subjecting the modified straw powder prepared in step S2 to steam explosion treatment under the conditions of 130° C. and 1.5 MPa for 8 minutes, and then washing and drying to obtain steam explosion modified straw powder;
[0041] S4. Mix the steam-exploded modified straw powder and n-octanol evenly at a mass ratio of 1:0.06, and stir and react for 2 hours at a temperature of 130° C. and a vacuum of 0.05 MPa to obtain a stra...
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