CAJ | 학술논문

在分析焦油形成机理和裂解条件的基础上提出了一种高效的低焦油生物质气化技术.该技术将生物质低温热解和高温气化两个过程分开进行,且要求热解发生于350～500℃之间,气化温度控制在1000℃左右,气化剂当量比大约为0.3.分步气化保证了焦油强化裂解的高温条件,使其充分裂解为小分子不凝性可燃气体,从而降低了可燃气体中基础焦油质量浓度,提高了燃气品质.该工艺可使燃气中基础焦油质量浓度降低到20mg/m~3以下.
재분석초유형성궤리화렬해조건적기출상제출료일충고효적저초유생물질기화기술.해기술장생물질저온열해화고온기화량개과정분개진행,차요구열해발생우350～500℃지간,기화온도공제재1000℃좌우,기화제당량비대약위0.3.분보기화보증료초유강화렬해적고온조건,사기충분렬해위소분자불응성가연기체,종이강저료가연기체중기출초유질량농도,제고료연기품질.해공예가사연기중기출초유질량농도강저도20mg/m~3이하.
A novel and efficient low-tar gasification technology was put forward based on the mechanics of tar generation and pyrolysis. This technology contains such two separate sub-process as pyrolysis occurring between 350℃ and 500℃, and gasification reacting in the high temperature condition about 1000℃. The high-temperature gasification ensures the tar pyrolyze into small molecule non-condensable gases with the equivalence ratio of gasification agent about 0.3. As a result, the quality of biogas is highly improved and the mass concentration of original tar in the biogas is significantly reduced below 20mg/m~3.