CH_4-CO_2重整转化反应器热平衡和流体阻力特性的研究  

Thermal Equilibrium and Characters of Fluid Resistance in CH_4-CO_2 Reforming Reactor

作　　者：张永发[1] 王丽秀[1] 

机构地区：[1]太原理工大学煤科学与技术教育部和山西省重点实验室,太原030024

出　　处：《化学工业与工程》2010年第5期391-396,共6页Chemical Industry and Engineering

基　　金："973"计划(2005CB221202);山西省自然科学基金(20051020)项目资助

摘　　要：基于炭催化剂特性、原料气组成和重整转化反应器的尺寸参数,建立了重整反应器体系的物料平衡和热平衡方程;并针对形状不规则炭催化剂粒度分布的特点,研究了重整转化反应器内流体阻力特性。研究结果表明:1)CO和H2O的生成热量是系统的主要放热源,占系统热量收入的71.03%,吸热的主要反应为CH4和CO2的转化反应,其吸热量占系统热量支出的33.54%,高温气体带走的大量热量占54.11%,散热量占13.51%;2)炭催化剂床层的流体阻力是重整转化反应器流体阻力的主要部分,炭催化剂粒度越大,炭催化剂床层的阻力越小,最适宜粒度组成是25～35mm的占80%,15～25 mm的占15%,5～15 mm的占5%,此时炭催化剂床层的流体阻力为313.5Pa/m。Based on the properties of carbonaceous catalyst,composition of feed gas and the size parameters of reforming reactor,heat and material balance of reactor were established.Because of irregular carbonaceous catalyst with size distribution,the fluid resistance in reforming reactor has been studied.The results indicate that： 1） The generated heat of CO and H2O is the main source of release of heat,accounting for 71.03% of heat input.The main heat absorption reaction is the transformation of CO2 and CH4,whose heat is about 33.54% of heat output.The heat of high temperature gases is about 54.11% and heat dissipation is 13.51%;2） Fluid resistance of carbon catalyst beds is the main part of the fluid resistance in reforming reactor.The bigger carbonaceous catalyst particle is,the smaller fluid resistance of carbonaceous catalyst bed is.The best granulometric composition of carbonaceous catalyst is 25—35 mm of 80%,15—25 mm of 15% and 5—15 mm of 5%,and fluid resistance of carbonaceous catalyst bed is 313.5 Pa /m.

关 键 词：CH4-CO2重整转化反应器 物料平衡 热平衡 流体阻力 

分 类 号：TB383[一般工业技术—材料科学与工程]