【单选题】
紧急停车时,关于分离系统的处理,下列说法错误的是___。
A. 统一指挥冷静果断
B. 停膨胀机再压缩机
C. 反应器按手动停车
D. 切断产品外送
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答案
D
解析
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【单选题】
紧急停车时,关于分离系统的处理,下列说法正确的是___。
A. 各精馏塔泄压至火炬
B. 各系统要保持相连
C. 各反应器泄压
D. 保证产品外送
【单选题】
碳二加氢反应器紧急停车的处理原则是___。
A. 乙烯精馏塔不被乙炔污染
B. 乙烯精馏塔停车
C. 脱乙烷塔停车
D. 冷区全线停车
【单选题】
裂解气干燥器出口水分提前不合格,处理方法不正确的是___。
A. 提高裂解气的进料温度
B. 尽快投用备用台,查找原因并处理
C. 降低裂解气温度
D. 严格控制再生条件
【单选题】
裂解气碱洗不合格,会造成分子筛中毒,干燥器出口水分会提前不合格,正确的处理方法是___。
A. 立即关闭裂解气干燥器的进出口阀
B. 尽快调整碱洗,碱洗合格后投用备用台
C. 立即切换至备用台
D. 分离系统紧急停车
【单选题】
硫化氢的中毒机理是___。
A. 硫化氢无毒,但具有强烈的腐蚀性
B. 硫化氢是强烈的神经毒物,与细胞色素氧化酶作用引起组织缺氧
C. 吸入硫化氢与血红蛋白结合使人失去呼吸功能全身缺氧
D. 硫化氢无毒,但人体吸入会排挤空气中的氧使人窒息
【单选题】
关于对一氧化碳中毒人员的救护,下列说法正确的法是___。
A. 将中毒人员撤离污染区域,必要时施行人工呼吸,输氧,立即请医生治疗
B. 中毒人员不宜移动,应现场急救
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【单选题】
关于对硫化氢中毒人员的救护,下列说法正确的是___。
A. 中毒人员不宜移动,应现场抢救
B. 将中毒人员直接送往医院
C. 将中毒人员撤离现场,进行急救,并尽快送医院
D. 在现场用大量清水冲洗
【单选题】
冷箱系统压差过大、温度分布异常,处理方法不正确的是___。
A. 检查碱洗塔的运行情况
B. 检查裂解气干燥状况,如冻堵,则注入甲醇解冻
C. 检查各过滤器,并用木锤敲打
D. 投用氢气开工线(氢气并低压甲烷线)
【单选题】
对于冷箱系统压差过大的处理方法,下列选项不正确的是___。
A. 严重时,作停车处理
B. 检查裂解气干燥状况,如冻堵,则注入甲醇解冻
C. 检查各过滤器,并用木锤敲打
D. 切换干操器即可
【单选题】
精馏塔冻塔的处理方法正确的是___。
A. 降加热
B. 增大采出
C. 减小进料
D. 注甲醇解冻
【单选题】
精馏塔灵敏板、釜温提不起来的处理方法正确的是___。
A. 在保证产品质量的前提下,适当降低塔顶回流量
B. 提高塔顶回流量
C. 增加进料量
D. 增加采出量
【单选题】
精馏塔灵敏板、釜温低时正确的处理方法是___。
A. 降低塔釜液面
B. 提高塔顶回流量
C. 增加进料量
D. 提高塔釜加热量
【单选题】
关于精馏塔灵敏板、釜温提不起来的原因,下列叙述不正确的是___。
A. 塔釜重组分多
B. 再沸器结垢
C. 回流量过大
D. 中沸器加热量大
【单选题】
精馏塔塔釜分析不合格,轻组分浓度高,下列说法不正确的是___。
A. 塔釜液面过低
B. 灵敏板温度低
C. 回流量过大
D. 塔釜加热量大
【单选题】
碳二加氢反应器温度上涨,但不是很快,最有效的处理方法是___。
A. 一发现温度上升较快即关闭氢气阀
B. 停止入口加热
C. 降低入口温度
D. 适当注入粗氢
【单选题】
关于碳二加氢反应器飞温的处理方法,下列说法正确的是___。
A. 降低氢炔比
B. 降低入口温度
C. 如备用台飞温则关紧各进出口氢气阀门
D. 碳二加氢反应器泄压至火炬
【单选题】
碳二加氢反应器飞温的处理方法正确的是___。
A. 全开段间冷却器冷却水
B. 降低入口温度
C. 反应器按SD2停车
D. 增加一氧化碳降低催化剂活性
【单选题】
碳二加氢反应器催化剂中毒时下列处理方法正确的是___。
A. 降低反应器入口温度
B. 压缩调整碱洗至合格
C. 降低氢炔比
D. 切换裂解气干燥器
【单选题】
碳二加氢反应器催化剂中毒的处理方法不正确的是___。
A. 提高反应器入口温度
B. 压缩调整碱洗至合格
C. 降低氢炔比
D. 碱洗合格后切换裂解气干燥器及碳二加氢反应器
【单选题】
当乙烯精馏塔产品乙烷超标时,正确的处理方法是___。
A. 调整乙烯精馏塔的操作
B. 调整碳二加氢反应器的操作
C. 调整脱乙烷塔的操作
D. 调整脱甲烷塔的操作
【单选题】
当丙烯产品分析不合格MAPD超标时,处理方法正确的是___。
A. 调整凝液汽提塔的操作
B. 调整脱丙烷塔的操作
C. 调整脱丁烷塔的操作
D. 调整碳三加氢反应器的操作
【单选题】
当碳四产品不合格,碳三含量超标时,处理方法正确的是___。
A. 调整脱丙烷塔的操作
B. 调整丙烯精馏塔的操作
C. 调整碳三加氢反应器的操作
D. 调整丙烷精制塔的操作
【单选题】
当乙烯精馏塔产品分析不合格,乙炔超标时,处理方法正确的是___。
A. 调整乙烯精馏塔的操作
B. 调整碳二加氢反应器的操作
C. 检查脱乙烷塔的操作是否正常
D. 调整脱甲烷塔的操作
【单选题】
碳二加氢反应器出口乙炔分析不合格正确的处理方法是___。
A. 提高入口温度
B. 降低入口温度
C. 提高脱乙烷塔顶温
D. 减少氢气量
【单选题】
仪表失灵后的处理方法正确的是___。
A. 保持阀全开
B. 关闭该阀
C. 将该阀切成手动操作稳定装置运行并联系仪表修理
D. 通过旁路来稳定装置运行
【单选题】
乙烯装置发生一般性着火事故,消防车队到达现场时,此时指挥者应为___。
A. 消防支队领导
B. 班长
C. 值班主任
D. 车间主任
【单选题】
装置发生一般性着火事故时,操作人员处理步骤中最准确的是___。
A. 第一时间向公司消防支队火警台报警
B. 第一时间向厂部及车间领导汇报事故情况
C. 第一时间操作人员对着火点进行扑救和控制
D. 通过现场呼叫器和火警报警系统把第一信息反馈到中央控制室
【单选题】
装置冷却水故障,分离系统作全面紧急停车处理,下列处理正确的是___。
A. 冷箱泄压
B. 碳二加氢反应器保温保压
C. 乙烯精馏塔全回流运转
D. 各塔停止加热,塔压由放火炬阀控制
【单选题】
当裂解气压缩机停车,而丙烯制冷压缩机正常运转时,分离处理正确的是___。
A. 碳二加氢反应器保温保压
B. 乙烯精馏塔全回流运转
C. 脱甲烷塔紧急停车
D. 丙烯精馏塔紧急停车
【单选题】
裂解气压缩机停车后,对分离系统的处理不正确的是___。
A. 碳二加氢反应器紧急停车
B. 甲烷化反应器紧急停车
C. 碳三反应器紧急停车
D. 停止罐区乙烯外送
【单选题】
裂解气压缩机停车后,对分离系统的处理错误的是___。
A. 冷箱系统紧急停车处理
B. 乙烯精馏塔全回流运转
C. 丙烯精馏塔全回流运转
D. 脱丙烷塔全回流运转
【单选题】
裂解气压缩机停车后,对分离系统的处理不正确的是___。
A. 碳二加氢反应器紧急停车
B. 甲烷化反应器紧急停车
C. 碳三反应器紧急停车
D. 脱甲烷塔汽提操作
【单选题】
乙烯压缩机停车后,对分离系统的处理正确的是___。
A. 停乙烯塔运行
B. 停丙烯塔运行
C. 停火炬系统
D. 丙烯外送停止
【单选题】
乙烯制冷压缩机停车后,对分离系统的处理正确的是___。
A. 碳二加氢反应器紧急停车
B. 甲烷化反应器紧急停车
C. 碳三反应器紧急停车
D. 维护膨胀机正常运行
【单选题】
乙烯制冷压缩机停车后,对分离系统的处理不正确的是___。
A. 脱甲烷塔汽提操作
B. 停碳二加氢
C. 维护膨胀机正常运行
D. 立即停甲烷化反应器
【单选题】
碳二加氢反应器因故停车,对分离系统处理正确的是___。
A. 乙烯精馏塔全回流运转
B. 脱乙烷塔紧急停车
C. 分离热区停车处理
D. 停止所有产品外送
【单选题】
碳二加氢反应器因故停车,下列处理不正确的是___。
A. 乙烯精馏塔全回流运转
B. 低压脱丙烷塔正常运行
C. 脱乙烷塔保证灵敏板温度,塔釜产品正常外送
D. 脱乙烷塔回流运行
【单选题】
甲烷化反应器因故停车,如分离系统有外供氢气,则下列处理正确的是___。
A. 乙烯精馏塔全回流运转
B. 碳三反应器停止注氢
C. 碳二加氢反应器停车
D. 分离系统只对甲烷化系统处理,其余正常运转
【单选题】
甲烷化反应器停车后,分离系统如没有外供氢气,则下列处理正确的是___。
A. 碳二加氢反应器停车
B. 乙烯精馏塔全回流
C. 碳三加氢反应器停止注氢
D. 丙烯精馏塔正常运行
【单选题】
氢气干燥器进料阀填料处漏氢气,现场人员一次处理正确的是___。
A. 接氮气稀释
B. 用蒸汽保护
C. 不做任何处理
D. 通知班长
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What a beautiful dress you have on today!___
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What does Tom's wife do for a living?___.
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What's the matter, John?___
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What are you majoring in?___
A. In a university.
B. Very hard.
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【单选题】
Are you going on holiday for a long time?___
A. It was a long time.
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【单选题】
Is Mary there?___
A. Speaking.
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What day is today?___
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___ I'd like to place an order please.
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- Shall we go out for dinner tonight?____
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