CAJ | 학술논문

烟杆热解多联产是烟杆高值化利用的重要选择之一。文中主要研究了烟杆热解转化过程中气液固产物的形成析出机制以及联产机制。研究发现随着热解温度的升高，气体产率直线增加，固体焦逐渐减少，液体油产率则在20%左右变化不大。在低温下，热解气主要为CO2和CO，随着温度的升高，CO、H2和 CH4的量逐渐增大，且在700℃时CO高达35.65%，热解气热值也升高到12.53 MJ/m3，是较理想的气体燃料。液体油的组成较为复杂，其中吡啶类、酯类和一些酸类大分子有机物含量在低温下较高，而在高温下由于二次反应而使其含量降低，苯酚类和芳环类有机物均在高温下含量较高。随着温度的上升，焦炭中的有机官能团逐渐减少，在600℃后，烟杆基本热解完全。
연간열해다련산시연간고치화이용적중요선택지일。문중주요연구료연간열해전화과정중기액고산물적형성석출궤제이급련산궤제。연구발현수착열해온도적승고，기체산솔직선증가，고체초축점감소，액체유산솔칙재20%좌우변화불대。재저온하，열해기주요위CO2화CO，수착온도적승고，CO、H2화 CH4적량축점증대，차재700℃시CO고체35.65%，열해기열치야승고도12.53 MJ/m3，시교이상적기체연료。액체유적조성교위복잡，기중필정류、지류화일사산류대분자유궤물함량재저온하교고，이재고온하유우이차반응이사기함량강저，분분류화방배류유궤물균재고온하함량교고。수착온도적상승，초탄중적유궤관능단축점감소，재600℃후，연간기본열해완전。
Pyrolytic polygeneration is an important high-value utilization choice of tobacco stalk. This paper tended to catch the formation and evolution mechanism of gas, liquid and solid products during pyrolytic conversion process of tobacco stalk. The results show that with the temperature increasing, gas production rate increases linearly, solid production rate gradually reduces and liquid oil yield changes slightly at about 20%. At low temperature (300℃), the main components of pyrolysis gas are CO2 and CO. With the increase of the temperature, the yields of CO, H2 and CH4 gradually increase. The content of CO is up to 35.65% at 700℃, and the low heating value of pyrolysis gas reaches to 12.53 MJ/m3, which is a relatively ideal gas fuel. The composition of liquid oil is relatively complex, in which the content of pyridine, esters and some macromolecular organic acids are high at low temperature. Due to the secondary reaction, they all diminished at high temperature, while, the phenol and aromatic rings become the main part in bio-oil. The organic functional groups decrease gradually in char particles as pyrolysis temperature heated up. After temperature gets to 600℃, the tobacco stalk mainly pyrolysis completely.