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首页> 外文期刊>Fuel >Hydrogen Production Via Gasification Of Meat And Bone Meal In Two-stage Fixed Bed Reactor System
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Hydrogen Production Via Gasification Of Meat And Bone Meal In Two-stage Fixed Bed Reactor System

机译：两级固定床反应器系统中的肉类和骨粉气化制氢

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Gasification of meat and bone meal followed by thermal cracking of tar was carried out at atmospheric pressure using a two-stage fixed bed reaction system in series. The first stage was used for the gasification and the second stage was used for thermal cracking of tar. In this work, the effects of temperature (650-850℃) of both stages, equivalence ratio (actual O_2 supply/stoichiometric O_2 required for complete combustion) (0.15-0.3) and the second stage packed bed height (40-100 mm) on the product (char, tar and gas) yield and gas (H_2, CO, CO_2, CH_4, C_2H_4, C_2H_6, C_3H_6, C_3H_8) composition were studied. It was observed that the two-stage process increased hydrogen production from 7.3 to 22.3 vol.% (N_2 free basis) and gas yield from 30.8 to 54.6 wt.% compared to single stage. Temperature and equivalence ratio had significant effects on the hydrogen production and product distribution. It was observed that higher gasification (850 ℃) and cracking (850 ℃) reaction temperatures were favorable for higher gas yield of 52.2 wt.% at packed bed height of 60 mm and equivalence ratio of 0.2. The residence time of tar and product gases was varied by varying the packed bed height of second stage. The tar yield decreased from 18.6 wt.% to 14.2 wt.% and that of gas increased from 50.6 wt.% to 54.6 wt.% by changing the packed bed height of second stage from 40 to 100 mm while the gross heating value (GHV) of the product gas remained almost constant (16.2-16.5 MJ/m~3).
机译：使用串联的两阶段固定床反应系统，在大气压力下将肉和骨粉气化，然后焦油热裂解。第一阶段用于气化，第二阶段用于焦油的热裂化。在这项工作中，两个阶段的温度（650-850℃），当量比（完全燃烧所需的实际O_2供应量/化学计量的O_2）（0.15-0.3）和第二阶段填充床高度（40-100 mm）的影响研究了产物（焦炭，焦油和煤气）的收率和气体（H_2，CO，CO_2，CH_4，C_2H_4，C_2H_6，C_3H_6，C_3H_8）的组成。观察到，与单级工艺相比，两级工艺的制氢量从7.3％（体积）增加到22.3％（体积）（无N_2），气体产率从30.8％（重）提高到54.6％（重量）。温度和当量比对制氢和产物分布有重要影响。观察到较高的气化（850℃）和裂化（850℃）反应温度有利于在填充床高度为60 mm和当量比为0.2时更高的气体产率为52.2 wt。％。通过改变第二阶段的填充床高度来改变焦油和产物气体的停留时间。通过将第二阶段的填料床高度从40 mm更改为100 mm，同时将总热值（GHV）更改为1，焦油产率从18.6 wt。％降低到14.2 wt。％，气体的产率从50.6 wt。％增加到54.6 wt。％ ）的产物气体几乎保持恒定（16.2-16.5 MJ / m〜3）。

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