Experiments on Continuous Carbonization Technology for Rice Chaff and Properties of Product

Experiments were conducted on carbonization of rice chaff by indigenous R & D continuous carbonization furnace, as well as on effect of different carbonization temperature on yield of carbonization and rice chaff vinegar, and on properties of rice chaff carbon. The result demonstrated that the optimal outlet speed increased with carbonization temperature, they had linear correlation with the equation as: y = 0.0125x－2.25, R2 = 1. Different carbonization technologies had little influence on properties of rice chaff carbon and vine vinegar, and quality of rice chaff carbon could meet the demand for substrate. The technology with carbonization temperature of 260±10℃ and outlet of 1.00 L/10 minutes had yield of rice chaff vinegar of 55%, evidently higher than the other three tested technologies, while that with carbonization temperature of 320±10℃ and outlet of 1.75 L/10 minutes had the most yield of rice chaff carbon