1-Butene의 폭발한계 측정과 폭발압력의 거동에 의한 위험성 평가

Abstract

In order to consider the risk of explosion and ignition of 1-butene, the following conclusions were obtained as a result of the experiment by changing the oxygen concentration and water vapor concentration.

1) As a result of a temperature of 350 °C and a pressure of 1.0 bar, the concentration of the lower limit of 1-butene and the concentration of the upper limit of 10.2% were calculated at an oxygen concentration of 21%. 2) At the oxygen concentration of 15.3%, minor explosions occurred at the sample concentration of 3.4% and 3.5%, and the marginal oxygen concentration was calculated at the oxygen concentration of 15.2%.

3) The explosion limit was measured by increasing the concentration change of moisture at the oxygen concentration of 15% by 2.5% to change the concentration of 1-butene under water vapor of up to 10%, but no explosion occurred.

4) At the oxygen concentration of 16%, the lower limit of 2.8% was calculated only when water vapor was not injected, but no explosion occurred when water vapor was injected more than 2.5%.

5) When the oxygen concentration was 17%, the change in moisture concentration was increased by 2.5%, and as a result of changing the concentration of 1-butene under water vapor of up to 10%, it was confirmed that the lower limit was about 0.2% lower than when the oxygen concentration was 16%.

6) At the oxygen concentration of 18%, the lower limit of 2.5% was obtained when water vapor was not injected, and as a result of injecting 2.5% of water vapor, the lower limit of 3.7%.

7) When the oxygen concentration was 21%, the lower limit was 2.3%, when the water vapor was not injected, the lower limit was 3.3%, when the water vapor was injected 5%, the lower limit was 4.9%, and when the water vapor was injected 7.5%, the lower limit was slightly lowered.

8) As a result of measuring the maximum explosion pressure of the sample, almost the same pressure was exhibited at the oxygen concentration of 16 to 21%.

9) The maximum explosive pressure increase rate of specimen was calculated to be 43.96 kg/cm2/s, 48.84 kg/cm2/s, 53.72 kg/cm2/s, and 63.49 kg/cm2/s, respectively, at the oxygen concentration of 16 to 21%.