洁净煤技术
潔淨煤技術
길정매기술
CLEAN COAL TECHNOLOGY
2015年
2期
109-112,116
,共5页
钙基吸收剂%脱硫%脱硝%氧化剂FeCl3/Al2O3
鈣基吸收劑%脫硫%脫硝%氧化劑FeCl3/Al2O3
개기흡수제%탈류%탈초%양화제FeCl3/Al2O3
calcium based sorbent%desulfuration%denitration%oxidation agent FeCl3/Al2O3
为了降低煤炭燃烧产生SO2和NOx 对大气环境的影响，减少污染物排放，在4种不同的工况下，研究了添加不同含量催化氧化剂（ FeCl3/Al2 O3）的改性钙基吸收剂（ CaO、Ca（ OH）2混合剂）、相对湿度、氧气含量对燃煤燃烧释放的SO2和NOx 的吸收效果。结果表明：添加氧化剂后，脱硝率显著升高，但到达一定值后趋于稳定，综合脱硫脱硝效率，最佳氧化剂添加量为15%，其平均脱硫效率和脱硝效率分别为57.5%、51.4%。当SO2初始体积分数为360×10－6时，脱硫效率达到最大96%；相对湿度对脱硫的影响大于脱硝；当O2体积分数为6%时，脱硫、脱硝效率达到最大值且趋于稳定，最高脱硫脱硝效率分别为95.2%、76.4%。
為瞭降低煤炭燃燒產生SO2和NOx 對大氣環境的影響，減少汙染物排放，在4種不同的工況下，研究瞭添加不同含量催化氧化劑（ FeCl3/Al2 O3）的改性鈣基吸收劑（ CaO、Ca（ OH）2混閤劑）、相對濕度、氧氣含量對燃煤燃燒釋放的SO2和NOx 的吸收效果。結果錶明：添加氧化劑後，脫硝率顯著升高，但到達一定值後趨于穩定，綜閤脫硫脫硝效率，最佳氧化劑添加量為15%，其平均脫硫效率和脫硝效率分彆為57.5%、51.4%。噹SO2初始體積分數為360×10－6時，脫硫效率達到最大96%；相對濕度對脫硫的影響大于脫硝；噹O2體積分數為6%時，脫硫、脫硝效率達到最大值且趨于穩定，最高脫硫脫硝效率分彆為95.2%、76.4%。
위료강저매탄연소산생SO2화NOx 대대기배경적영향，감소오염물배방，재4충불동적공황하，연구료첨가불동함량최화양화제（ FeCl3/Al2 O3）적개성개기흡수제（ CaO、Ca（ OH）2혼합제）、상대습도、양기함량대연매연소석방적SO2화NOx 적흡수효과。결과표명：첨가양화제후，탈초솔현저승고，단도체일정치후추우은정，종합탈류탈초효솔，최가양화제첨가량위15%，기평균탈류효솔화탈초효솔분별위57.5%、51.4%。당SO2초시체적분수위360×10－6시，탈류효솔체도최대96%；상대습도대탈류적영향대우탈초；당O2체적분수위6%시，탈류、탈초효솔체도최대치차추우은정，최고탈류탈초효솔분별위95.2%、76.4%。
In order to reduce the influence of SO2 and NOx from coal combustion on atmospheric environment,four experiment conditions were designed. The characteristics of calcium based absorbent which were the combination of CaO and Ca( OH)2 were modified by adding different amounts of FeCl3/Al2 O3 catalyst. The influence of absorbent characteristics,relative humidity,O2 content on the absorption of SO2 and NOx were investigated. The results showed that,the addition of catalyst significantly improved denitration rate which remained stable when reached a special value. In order to get the best desulfuration and denitration effects,the optimum catalyst addition was 15%. The av-erage desulfuration and denitration rate were 57. 5% and 51. 4%. When the initial concentration of SO2 was 3. 6×10-4 ,the maximum des-ulfuration rate could reach 96%. Compared with denitration effects,desulfuration effects was more susceptible to the relative humidity. When the O2 content reached 6%,the maximum desulfuration and denitration rate tended towards stability. The high desulfuration and de-nitration rate was 95. 2% and 76. 4%.
