This paper studies the characteristics of larch bark pyrolysis and analyzes factors that affect the pyrolysis and the liquid pyrolytic component. The results are as follows: TG curve shows that the pyrolysis can be di...This paper studies the characteristics of larch bark pyrolysis and analyzes factors that affect the pyrolysis and the liquid pyrolytic component. The results are as follows: TG curve shows that the pyrolysis can be divided into three parts: drying process, pyrolytic process, and carbonate and calcinated process. Both the size of grain and the temperature rising rate affect the shape of TG and DTG. Vinegar and sedimentary tar are main components of pyrolyzate products. GC-MS is applied to analyze vinegar. It is shown that the vinegar is a highly complex compound which is composed of phenol and its derivatives (45.620%), organic acid (13.851%), keto derivatives (9.754%), aldehydic derivatives (8.573%), alcoholic derivatives (1.794%), ester and its derivatives (0.205%).展开更多
With the self-made pyrolysis equipment in miniature, we experimented in different pyrolysis conditions to get different pyrolyzate yields ( carbon, vinegar and gas). It proved that with the rise of temperature, the av...With the self-made pyrolysis equipment in miniature, we experimented in different pyrolysis conditions to get different pyrolyzate yields ( carbon, vinegar and gas). It proved that with the rise of temperature, the average yield of carbon descends gradually while the yields of vinegar and gas rise gradually. As the temperature rises, the yield of gas increases much more than that of vinegar. When speeding up the rising temperature, yield of carbon goes down while yields of vinegar and gas go up.展开更多
文摘This paper studies the characteristics of larch bark pyrolysis and analyzes factors that affect the pyrolysis and the liquid pyrolytic component. The results are as follows: TG curve shows that the pyrolysis can be divided into three parts: drying process, pyrolytic process, and carbonate and calcinated process. Both the size of grain and the temperature rising rate affect the shape of TG and DTG. Vinegar and sedimentary tar are main components of pyrolyzate products. GC-MS is applied to analyze vinegar. It is shown that the vinegar is a highly complex compound which is composed of phenol and its derivatives (45.620%), organic acid (13.851%), keto derivatives (9.754%), aldehydic derivatives (8.573%), alcoholic derivatives (1.794%), ester and its derivatives (0.205%).
文摘With the self-made pyrolysis equipment in miniature, we experimented in different pyrolysis conditions to get different pyrolyzate yields ( carbon, vinegar and gas). It proved that with the rise of temperature, the average yield of carbon descends gradually while the yields of vinegar and gas rise gradually. As the temperature rises, the yield of gas increases much more than that of vinegar. When speeding up the rising temperature, yield of carbon goes down while yields of vinegar and gas go up.
