北京科技大学学报
北京科技大學學報
북경과기대학학보
JOURNAL OF UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING
2014年
8期
1101-1107
,共7页
魏广飞%刘应书%张辉%李虎%李小康%刘洋
魏廣飛%劉應書%張輝%李虎%李小康%劉洋
위엄비%류응서%장휘%리호%리소강%류양
沼气%提纯%二乙醇胺%二氧化碳%吸收%影响因素
沼氣%提純%二乙醇胺%二氧化碳%吸收%影響因素
소기%제순%이을순알%이양화탄%흡수%영향인소
biogas%purification%diethanolamine%carbon dioxide%absorption%influencing factors
采用交互作用正交试验设计,系统研究了进液流量、进气流量、CO2体积分数、进液温度及其交互作用对填料塔中二乙醇胺溶液吸收CO2的转化率浊和气相总体积传质系数KG ae 的影响。经过直观分析和方差分析,评价了各参数对?和KG ae影响的显著程度。实验发现进液流率、进气流率、CO2体积分数、进液温度,以及CO2体积分数与进气流率、进液温度与进液流率、进液温度与进气流率的交互作用对?影响显著;进液流率、进气流率、CO2体积分数、进液温度、CO2体积分数与进气流率的交互作用以及进液温度与进气流率的交互作用对KG ae 影响显著;进气流率增加,?降低而KG ae 增加;进液流率增加,?和KG ae 均增加;进气CO2体积分数增加,浊和KG ae 均降低;进液温度升高,?和KG ae 均呈先增加后减小趋势。
採用交互作用正交試驗設計,繫統研究瞭進液流量、進氣流量、CO2體積分數、進液溫度及其交互作用對填料塔中二乙醇胺溶液吸收CO2的轉化率濁和氣相總體積傳質繫數KG ae 的影響。經過直觀分析和方差分析,評價瞭各參數對?和KG ae影響的顯著程度。實驗髮現進液流率、進氣流率、CO2體積分數、進液溫度,以及CO2體積分數與進氣流率、進液溫度與進液流率、進液溫度與進氣流率的交互作用對?影響顯著;進液流率、進氣流率、CO2體積分數、進液溫度、CO2體積分數與進氣流率的交互作用以及進液溫度與進氣流率的交互作用對KG ae 影響顯著;進氣流率增加,?降低而KG ae 增加;進液流率增加,?和KG ae 均增加;進氣CO2體積分數增加,濁和KG ae 均降低;進液溫度升高,?和KG ae 均呈先增加後減小趨勢。
채용교호작용정교시험설계,계통연구료진액류량、진기류량、CO2체적분수、진액온도급기교호작용대전료탑중이을순알용액흡수CO2적전화솔탁화기상총체적전질계수KG ae 적영향。경과직관분석화방차분석,평개료각삼수대?화KG ae영향적현저정도。실험발현진액류솔、진기류솔、CO2체적분수、진액온도,이급CO2체적분수여진기류솔、진액온도여진액류솔、진액온도여진기류솔적교호작용대?영향현저;진액류솔、진기류솔、CO2체적분수、진액온도、CO2체적분수여진기류솔적교호작용이급진액온도여진기류솔적교호작용대KG ae 영향현저;진기류솔증가,?강저이KG ae 증가;진액류솔증가,?화KG ae 균증가;진기CO2체적분수증가,탁화KG ae 균강저;진액온도승고,?화KG ae 균정선증가후감소추세。
The effects of influencing factors such as gas flow rate, liquid flow rate, CO2 volume fraction, absorption temperature and their interactions on the percent conversion ? and the volumetric overall mass transfer coefficient in gas phases KG ae by diethano-lamine ( DEA) aqueous solution were systematically studied by using orthogonal experimental design and statistical analysis. The im-pact significance of these influencing factors was estimated. It is found that gas flow rate, liquid flow rate, CO2 volume fraction, ab-sorption temperature, the interactions between CO2 volume fraction and gas flow rate, between absorption temperature and liquid flow rate, and between absorption temperature and gas flow rate have remarkable effect on?;however, gas flow rate, liquid flow rate, CO2 volume fraction, absorption temperature, the interactions between gas flow rate and CO2 volume fraction and between gas flow rate and absorption temperature have distinguished influence on KG ae . With the increment of gas flow rate,?decreases, while KG ae increases.? and KG ae increase as the liquid flow rate increases, but they decrease as the CO2 volume fraction increases. The impact of absorption temperature on ? and KG ae is approximately parabolic.