CAJ | 학술논문

灰熔融特性对煤与生物质共气化意义重大。为探索生物质对褐煤灰熔融特性的影响规律，向呼盛褐煤中分别加入不同质量比例的花生壳、玉米秸秆和松木屑，采用 ALHR-2型智能灰熔点测定仪对混合灰样的灰熔点进行了测定，X射线荧光仪（XRF）和X射线衍射仪（XRD）分析了灰熔融特性变化的原因。结果表明生物质能够在一定程度上降低呼盛褐煤的灰熔融温度，这与生物质灰分含量以及混合灰样化学组成有关，且生物质掺混比例与混合灰熔融特征温度呈现非线性关系；莫来石的生成和消失使花生壳与呼盛褐煤混合灰样和玉米秸秆与呼盛褐煤混合灰样的灰熔融特征温度出现了波动；高熔点硅线石含量的降低、低熔点钙长石含量的增加、以及低熔点白榴石和斜辉石的生成导致了松木屑与呼盛褐煤混合样灰熔融特征温度降低。
회용융특성대매여생물질공기화의의중대。위탐색생물질대갈매회용융특성적영향규률，향호성갈매중분별가입불동질량비례적화생각、옥미갈간화송목설，채용 ALHR-2형지능회용점측정의대혼합회양적회용점진행료측정，X사선형광의（XRF）화X사선연사의（XRD）분석료회용융특성변화적원인。결과표명생물질능구재일정정도상강저호성갈매적회용융온도，저여생물질회분함량이급혼합회양화학조성유관，차생물질참혼비례여혼합회용융특정온도정현비선성관계；막래석적생성화소실사화생각여호성갈매혼합회양화옥미갈간여호성갈매혼합회양적회용융특정온도출현료파동；고용점규선석함량적강저、저용점개장석함량적증가、이급저용점백류석화사휘석적생성도치료송목설여호성갈매혼합양회용융특정온도강저。
Ash fusion characteristics are very important to co-gasification of biomass and coal. To study the effects of biomass on ash fusion temperatures(AFTs) of lignite,the mixtures of peanut shells, corn straw and pine wood chips with Husheng lignite at different mass ratios were investigated. The trend of AFTs change of mixtures was examined on an intelligent ash fusion analyzer. X-ray fluorescence spectrometer (XRF) and X-ray diffract-meter (XRD) were used to analyze the reason causing AFTs change. Three kinds of biomass all could make the AFTs of Husheng lignite decrease to some extent,which was related to ash content and ash composition of the mixtures. A non-linear relationship was shown between the mixing proportion and AFTs of mixtures. The formation of mullite in mixed ashes (peanut shell or corn straw with Husheng lignite) resulted in fluctuation of the trend of AFTs change. For the mixed sample of pine wood chips and Husheng lignite,the decrease of kyanite with a high melting point (MP),the increase of anorthite with a low MP,and the generation of low MP leucite and augite led to the decrease of AFTs.