焦炉煤气直接氧化制合成气工艺条件优化  

NUMERICAL SIMULATION AND OPTIMIZATION OF SYNGAS PRODUCTION BY PARTIAL OXIDATION OF COKE OVEN GAS IN NON-PREMIXED CONDITION

作　　者：赵辉[1] 陈倩倩[1] 陈宏刚[1] 张永发[2] 

机构地区：[1]中国石油大学重质油国家重点实验室,山东东营博士讲师257061 [2]太原理工大学煤科学与技术教育部和山西省重点实验室,太原教授博士030024

出　　处：《煤炭转化》2009年第3期13-18,共6页Coal Conversion

基　　金：国家重点基础研究发展计划(973)项目(2005CB221202);山东省优秀中青年科学家科研奖励基金资助项目(2007BS08009)

摘　　要：为进一步优化焦炉煤气非预混燃烧直接制备合成气的工艺参数,对焦炉煤气在贫氧条件下发生非预混燃烧的过程进行数值模拟研究,得到了反应器内温度及产物组成分布的详细分布状况.模拟结果表明,反应在靠近氧气入口的区域内发生.从数值模拟的结果来看,反应器壁温对反应结果有非常重要的影响:提高反应器壁温有利于提高合成气的选择性,但是煤气中甲烷的转化率有所降低.因此,反应器壁温是能够控制本工艺总体反应效果的重要参数,工艺优化过程中应该特别注意.Non-premixed combustion of coke oven gas under low oxygen condition was investigated through computational fluid dynamic （CFD） simulation coupled with radiation heat transfer. Temperature profile and product distribution in reactor were obtained from simulation. Calculated temperature profile indicates that oxygen react strongly with coke oven gas in region near the oxygen nozzle and the temperature in this region increase sharply. Noticeable influence of reactor wall temperature on product distribution could be found in simulation results. Higher selectivity of syngas could be archived at higher reactor wall temperature, while conversion rate of methane in coke oven gas was suppressed simultaneously. So reactor wall temperature should be treated as a key parameter and optimized well in this process.

关 键 词：非预混燃烧 部分氧化 合成气 

分 类 号：TQ021.8[化学工程] TQ546