广州化工
廣州化工
엄주화공
GUANGZHOU CHEMICAL INDUSTRY AND TECHNOLOGY
2014年
20期
197-199
,共3页
变换装置%钴钼催化剂%超温%碳铵结晶%气阻
變換裝置%鈷鉬催化劑%超溫%碳銨結晶%氣阻
변환장치%고목최화제%초온%탄안결정%기조
conversion device%cobalt -molybdenum catalyst%over -temperature%ammonium bicarbonate crystallization%the resistance of air
本文针对在实际生产过程中出现的一些问题进行处理。合成氨变换装置在接气和正常生产时,变换催化剂床层出现不同程度的超温现象,严重影响变换装置的安全平稳运行,因此在变换炉前增加放空管线,并在正常生产时增加气化水汽比,使催化剂床层温度控制在正常范围内。对粗煤气做带液处理时,由于V1501液位较高,容易将水带入变换炉使催化剂粉化,因此在V1501液相新增管线去气化澄清池,带液问题得到有效控制。由于系统中氨含量较高, E1506容易形成碳铵结晶,针对这个问题将去气化磨煤的尿素废液改成去气化除氧器,同时对内漏的尿素废液换热器进行更换。经过改造确保了装置平稳运行。
本文針對在實際生產過程中齣現的一些問題進行處理。閤成氨變換裝置在接氣和正常生產時,變換催化劑床層齣現不同程度的超溫現象,嚴重影響變換裝置的安全平穩運行,因此在變換爐前增加放空管線,併在正常生產時增加氣化水汽比,使催化劑床層溫度控製在正常範圍內。對粗煤氣做帶液處理時,由于V1501液位較高,容易將水帶入變換爐使催化劑粉化,因此在V1501液相新增管線去氣化澄清池,帶液問題得到有效控製。由于繫統中氨含量較高, E1506容易形成碳銨結晶,針對這箇問題將去氣化磨煤的尿素廢液改成去氣化除氧器,同時對內漏的尿素廢液換熱器進行更換。經過改造確保瞭裝置平穩運行。
본문침대재실제생산과정중출현적일사문제진행처리。합성안변환장치재접기화정상생산시,변환최화제상층출현불동정도적초온현상,엄중영향변환장치적안전평은운행,인차재변환로전증가방공관선,병재정상생산시증가기화수기비,사최화제상층온도공제재정상범위내。대조매기주대액처리시,유우V1501액위교고,용역장수대입변환로사최화제분화,인차재V1501액상신증관선거기화징청지,대액문제득도유효공제。유우계통중안함량교고, E1506용역형성탄안결정,침대저개문제장거기화마매적뇨소폐액개성거기화제양기,동시대내루적뇨소폐액환열기진행경환。경과개조학보료장치평은운행。
Based on some of the issues resolved in the actual production , when ammonia conversion device in coherent and normal production , the transformation of the catalyst bed appear varying degrees of super -temperature phenomena , which seriously affected the safe and stable operation of conversion devices.Therefore , the increase in the conversion furnace vent line , the ratio of water vapor gasification was increased under the normal production , in order to control the temperature of the catalyst bed within the normal range.When dealing with liquid crude gas , due to the high level V1501, easy to bring water into the furnace which lead to catalyst powder , Therefore, V1501 liquid pipelines to new gasification clarifiers to effectively controller the liquid issues.Due to high ammonia content in the system , the E1506 was easy to form ammonium bicarbonate crystallization.For this problem , the gasification of coal mill into urea waste gasification deaerator was changed and the internal leakage of urea waste heat was replaced .After the transformation , the smooth operation of the device was ensured.