Asphaltite Pyrolysis in Fluidized Bed Reactor

Samad Moghanirahimi, Hüseyin Topal
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Abstract

In this study, the pyrolysis properties of asphaltite samples taken from Şırnak and Hakkari regions in a fluidized bed reactor under catalyst and non-catalyst conditions were determined by rapid and batch pyrolysis. Basic analysis, FTIR and XRF analyses were performed for the raw material. GC-MS analysis methods were used for liquid pyrolysis products and FTIR were used for solids. In order to acquire the condition of the highest liquid product yield in pyrolysis, several effective variables such as particle diameter, vacuum, nitrogen flow rate, temperature, raw material feed rate, catalyst type, raw material type and duration were experimented and the results were evaluated. In general, the vacuum effect has led to an increase in liquid product yield and a decrease in gas product yield. Liquid product yield increased at 700°C pyrolysis temperature in continuous feed system and 550 - 650°C in batch system. In the pyrolysis studies carried out, a maximum liquid product yield of 16.5% was achieved in the continuous fed reactor at 700°C temperature, 400 mmHg vacuum, 2 g/min feed rate and 500 µm particle size.
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流化床反应器中沥青质的热解
在本研究中,采用快速热解和间歇热解的方法,对来自Şırnak和Hakkari地区的沥青质样品在流化床反应器中在催化剂和非催化剂条件下的热解特性进行了研究。对原料进行了基础分析、FTIR和XRF分析。液体热解产物采用气相色谱-质谱分析方法,固体热解产物采用红外光谱分析方法。为了获得热解液产物产率最高的条件,对颗粒直径、真空度、氮气流量、温度、原料进料量、催化剂类型、原料类型、持续时间等几个有效变量进行了实验,并对实验结果进行了评价。一般来说,真空效应导致液体生成物收率增加而气体生成物收率降低。连续进料系统热解温度为700℃,间歇式系统热解温度为550 ~ 650℃时,液产率提高。在连续进料反应器中,温度为700℃,真空度为400 mmHg,进料速率为2 g/min,颗粒尺寸为500µm,最大产液率为16.5%。
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