石油化工技术与经济
石油化工技術與經濟
석유화공기술여경제
TECHNO-ECONOMICS IN PETROCHEMICALS
2014年
5期
56-61
,共6页
催化轻汽油%醚化工艺%二烯烃%金属阳离子%乙腈
催化輕汽油%醚化工藝%二烯烴%金屬暘離子%乙腈
최화경기유%미화공예%이희경%금속양리자%을정
catalytic light gasoline%etherification process%diolefin%metal cation%acetonitrile
介绍了 NExTAME、CDEthers、DET、LNE 等4种具有代表性的催化轻汽油醚化工艺及流程，并对这些工艺的技术特点进行了总结。探讨了原料中杂质对醚化反应的影响，指出原料中的二烯烃、金属阳离子、腈类氮化合物是醚化催化剂最主要的中毒物，应分别采取选择性加氢、增设原料净化器和水洗等预处理措施，将催化轻汽油中的二烯烃、金属阳离子、腈类分别降至1000，1，1 mg/kg 以下。另外还举例说明了轻汽油醚化装置投产后可大幅度提高炼厂的经济效益，且装置具有较好的抗风险能力。
介紹瞭 NExTAME、CDEthers、DET、LNE 等4種具有代錶性的催化輕汽油醚化工藝及流程，併對這些工藝的技術特點進行瞭總結。探討瞭原料中雜質對醚化反應的影響，指齣原料中的二烯烴、金屬暘離子、腈類氮化閤物是醚化催化劑最主要的中毒物，應分彆採取選擇性加氫、增設原料淨化器和水洗等預處理措施，將催化輕汽油中的二烯烴、金屬暘離子、腈類分彆降至1000，1，1 mg/kg 以下。另外還舉例說明瞭輕汽油醚化裝置投產後可大幅度提高煉廠的經濟效益，且裝置具有較好的抗風險能力。
개소료 NExTAME、CDEthers、DET、LNE 등4충구유대표성적최화경기유미화공예급류정，병대저사공예적기술특점진행료총결。탐토료원료중잡질대미화반응적영향，지출원료중적이희경、금속양리자、정류담화합물시미화최화제최주요적중독물，응분별채취선택성가경、증설원료정화기화수세등예처리조시，장최화경기유중적이희경、금속양리자、정류분별강지1000，1，1 mg/kg 이하。령외환거례설명료경기유미화장치투산후가대폭도제고련엄적경제효익，차장치구유교호적항풍험능력。
The four representative etherification technologies and processes of catalytic light gasoline as NExTAME、CDEthers、DET and LNE were introduced,and their technological characteristics were summarized.The paper discussed the effects of impurities in raw material on the etherification reaction;and pointed out that diolefin, metal cations and nitrile compounds in raw material were major poisoning materials for catalyst,and pretreatment measures as selective hydrogenation,adding material purification apparatus and water washing to reduce the diolefin,metal cation and nitrile compounds contents to below 1 000 mg/kg,1 mg/kg and 1 mg/kg, respectively.In addition,it illustrated that full operation of light gasoline etherification plant could markedly improve the economic profits of refining plant,meanwhile,the plant had good anti -risk capability.
