第1个回答 2009-06-09
Temperature on the precipitation of sulfur in coal, especially the influence of the temperature of furnace mainly embodies in the exhalation rate and reaction time on completion. High temperature stability, the sulfur is less, the rate of sulfur is faster, more quantity, the reaction time separation is shorter. Therefore, the sulfur coal separation process of pyrolysis temperature rise and increases with increasing.
Oxygen is the pressure in the process of sulfur release coal pyrolysis, due to an important factor of coal sample cannot completely contact with the oxygen in air can complete combustion) (i.e., oxygen pressure increases in high temperature pyrolysis, coal oxidation of circumstances quickly. In the same flow, the same temperature, concentration of oxygen with increase of sulfur release, coal pyrolysis marked acceleration, The final release sulfur content increased. Therefore, the coal separation process of pyrolysis sulfur amount of oxygen concentration increases with the increased.本回答被提问者采纳
第2个回答 2009-06-09
The temperature the sulfur separation is especially remarkable to the coal, in the stove the temperature influence mainly manifests, in the separation speed and the response finished in the time. The temperature is high, can exist stably the sulfur content are less, the sulfur separation speed is quicker, the separation quantity are more, the reaction time is also shorter. Therefore in the coal thermal decomposition process, the sulfur separation quantity increases along with the temperature rise. The oxygen differential pressure is affects in the coal thermal decomposition process a sulfur release's important attribute, because the coal sample cannot contact completely with the air in oxygen (i.e. cannot completely combustion), oxygen differential pressure's enlargement, is advantageous to the coal in the high temperature thermal decomposition situation the rapid oxidation. In the same current capacity, under the same temperature, along with oxygen density's increase, the coal thermal decomposition sulfur release rate obviously speeds up; The sulfur releases the quantity to increase finally. Therefore in the coal thermal decomposition process, the sulfur separation quantity increases along with the oxygen concentration increases.
第3个回答 2009-06-09
Temperature be separated out to coal middle sulfur is especially notable , the stove inner temperature effect embodies in mainly to separate the rate and reaction out being finished on time. The temperature is increasingly fewer than the sulfur component high , being able to stabilize existence, the sulfur be separated out the rate is getting more as separating amounts out quickly more right away, reaction time can't exceed short. Therefore in coal pyrolyzation process,the sulfur separates amounts out with the temperature go up but increases by. Mark of oxygen pressure is to affect a key factor that the sulfur releases in coal pyrolyzation process , get in touch with (be to be able to not burn) completely completely since coal appearance can not draw oxygen in air, under the high temperature fever solution situation prompt oxygen coal oxide beneficial to being allotted enhancing pressing on. Under identical rate of flow , the identical temperature, with oxygen thickness increasing by, the speed the coal pyrolyzation sulfur is released is notable be accelerated; The sulfur ultimateness releases amounts increasing by. Therefore in coal pyrolyzation process,the sulfur separates amounts out with oxygen thickness enhancing but increases by.