石油与天然气化工
石油與天然氣化工
석유여천연기화공
CHEMICAL ENGINEERING OF OIL AND GAS
2015年
2期
65-69
,共5页
醚化%催化蒸馏技术%反应%能耗
醚化%催化蒸餾技術%反應%能耗
미화%최화증류기술%반응%능모
etherification%catalytic distillation technology%reaction%energy consumption
介绍了催化蒸馏技术在40×104 t/a 汽油醚化装置中的应用情况。结果表明,汽油醚化装置运行稳定,加氢后的催化汽油蒸汽压由68 kPa 降至56 kPa,轻汽油研究法辛烷值提高约1.33个单位,轻汽油烯烃含量降低了15.71%(φ),效果比较显著,经济效益提升明显;C5叔碳烯烃平均转化率达到95.13%,C6叔碳烯烃平均转化率达到52.28%;醚化效果明显。催化剂在40℃就能够催化醚化反应,且具有较高的转化率;催化剂较高的低温活性,有利于催化剂寿命的延长。醚化轻汽油中甲醇含量控制在0.18%(w)左右,可以通过优化进一步提高醚化汽油中的甲醇含量,达到效益最大化。通过催化蒸馏技术,使醚化反应器出口转化率由69.39%提高到了93.71%;甲醇消耗为90.9 kg 甲醇/t 轻汽油;装置能耗为833.5×104 kJ/t(19.94 kgEo/t)轻汽油,远低于设计值;废水排放少,符合催化蒸馏技术的特点。
介紹瞭催化蒸餾技術在40×104 t/a 汽油醚化裝置中的應用情況。結果錶明,汽油醚化裝置運行穩定,加氫後的催化汽油蒸汽壓由68 kPa 降至56 kPa,輕汽油研究法辛烷值提高約1.33箇單位,輕汽油烯烴含量降低瞭15.71%(φ),效果比較顯著,經濟效益提升明顯;C5叔碳烯烴平均轉化率達到95.13%,C6叔碳烯烴平均轉化率達到52.28%;醚化效果明顯。催化劑在40℃就能夠催化醚化反應,且具有較高的轉化率;催化劑較高的低溫活性,有利于催化劑壽命的延長。醚化輕汽油中甲醇含量控製在0.18%(w)左右,可以通過優化進一步提高醚化汽油中的甲醇含量,達到效益最大化。通過催化蒸餾技術,使醚化反應器齣口轉化率由69.39%提高到瞭93.71%;甲醇消耗為90.9 kg 甲醇/t 輕汽油;裝置能耗為833.5×104 kJ/t(19.94 kgEo/t)輕汽油,遠低于設計值;廢水排放少,符閤催化蒸餾技術的特點。
개소료최화증류기술재40×104 t/a 기유미화장치중적응용정황。결과표명,기유미화장치운행은정,가경후적최화기유증기압유68 kPa 강지56 kPa,경기유연구법신완치제고약1.33개단위,경기유희경함량강저료15.71%(φ),효과비교현저,경제효익제승명현;C5숙탄희경평균전화솔체도95.13%,C6숙탄희경평균전화솔체도52.28%;미화효과명현。최화제재40℃취능구최화미화반응,차구유교고적전화솔;최화제교고적저온활성,유리우최화제수명적연장。미화경기유중갑순함량공제재0.18%(w)좌우,가이통과우화진일보제고미화기유중적갑순함량,체도효익최대화。통과최화증류기술,사미화반응기출구전화솔유69.39%제고도료93.71%;갑순소모위90.9 kg 갑순/t 경기유;장치능모위833.5×104 kJ/t(19.94 kgEo/t)경기유,원저우설계치;폐수배방소,부합최화증류기술적특점。
This paper introduced the application of catalytic distillation technology in 40 × 10 4 t/a gasoline etherification unit.The results show that the etherification installation is suitable for gasoline etherification unit.The vapor pressure of the mixed gasoline dropped from 68 kPa to 56 kPa.The oc-tane number of light gasoline increases by 1.33 units,and the olefin content in light gasoline reduces by 15.71%.The increase of the economic benefit is significant.The average conversion rate of C5 and C6 tertiary carbonic olefins reached 95.13% and 52.28%,respectively.The etherification effect is re-markable.The catalyst can catalyze the etherification reaction at 40 ℃,and has a better conversion rate.The higher activity of the catalyst at low temperature is beneficial to prolonging the service life of the catalyst.The methanol content in etherified light gasoline should be controlled at about 0.18%,which can be further improved by optimizing the etherification to make the benefit maxi-mum.The outlet conversion rate of etherification reactor was increased from 69.39% to 93.71% with catalytic distillation technology.The methanol consumption of per ton light gasoline is 90.9 kg.The energy consumption of per ton light gasoline is 1 9.94 kg standard oil,which is far lower than the de-signed value.In addition,the waste water discharge of unit is less than designed value,which is in ac-cordance with the characteristics of catalytic distillation technology.