Study On Synergy Of Co-pyrolysis Of Lignin Alkaline And Oil Shale

Oil shale energy today as a supplement to petroleum energy, whether liquid or vapor from the product, there is a good use value, and therefore the oil shale have understandable position in energy, the basic lignin as a by-product of the paper industry, because of its value in use has not been fully developed, resulting in indiscriminate discharge of waste to be deemed, at the same time environmental pollution but also to bring harm to human health, since both respective pyrolysis can not only get through the rich light gas, there are also harmful compound containing an aromatic ring structure as well as phenolic compounds and other substances, by a total thermal solution is intended both to study whether the collaboration, reduce generation of hazardous substances, improve yield and reduce gas coke yield, mainly TG TG-FTIR-based FTIR technology proposed alkaline lignin and oil shale pyrolysis program altogether,supplemented by ICP-MS and SEM electron microscopy experiments, mainly through the pyrolysis process, the solution kinetics heat, pyrolysis product which several aspects to analyze and study the causes of their collaboration.By alkaline lignin and oil shale pyrolysis two separate co-pyrolysis process, studied the characteristics of the two separate pyrolysis, pyrolysis in research co, the mixing ratio of its influence is greater than the heating rate, Oil shale and alkaline lignin by heat alone weight loss data calculated from theoretical data and actual data comparison, a mixed solution of synergy between the two heat temperature range occurred in the preliminary determination.Kinetic analysis through a variety of dynamic analysis of alkaline lignin and oil shale pyrolysis process, through a single scan rate Coats-Redfern integral method to study the pyrolysis zone three mixed samples further showed that high temperature pyrolysis zone synergies obviously, by trying two model free method(FWO method, Starink method) for mixing different heating rates of the same sample rate conversion under the kinetic studies that show the two methods are applicable to both Study co-pyrolysis.Through the co-pyrolysis products in different conditions of analysis, mixed aspect ratio,the concentration of CH4, CO, CO2, H2 O, aromatic compound and phenolic compounds were increased to varying degrees in the pyrolysis zone But the basic lignin and oil shale mix ratio of8:2, the lowest concentration was to verify the conclusions of inhibition kinetics. While mixing ratio of 8:2 in a significant reduction of the aromatic ring structure of the compound with a phenolic compound cumulative production. Heating rate aspect, CH4, CO, aromatic structure of the compound varies the heating rate and gas evolution and the heating rate is proportional to theconcentration, other products are not the law changed. The role of different heating rate pyrolysis products cumulative production is not obvious. By comparing the gas yield and coke yield, the mixing ratio of factors more significant than the heating rate, 8:2 pairs of gas yield inhibited, and the rest are up to the purpose of the mixing ratio increased coke gas reduction. Heat two different mixing in a final temperature of 900 ℃, the solution studies than char apparent structure by pyrolysis zone to verify the existence of collaboration. By introducing RMS, the activation energy in the temperature range of the change, the change pyrolysis products etc. can verify both obvious synergies in the pyrolysis zone.