又粗又硬又黄A级毛片_成人免费无码大片A毛片抽搐_国产婷婷色一区二区三区_被老头玩弄邻居人妻中文字幕

甲(jia)(jia)(jia)(jia)(jia)(jia)醇(chun)(chun)(chun)(chun)雖然對人們的(de)(de)(de)身(shen)體會產(chan)生一(yi)(yi)定(ding)的(de)(de)(de)損害，但是(shi)在(zai)工業領域(yu)的(de)(de)(de)甲(jia)(jia)(jia)(jia)(jia)(jia)醇(chun)(chun)(chun)(chun)使(shi)(shi)用(yong)(yong)(yong)(yong)還是(shi)十(shi)分(fen)廣泛(fan)的(de)(de)(de)，制作涂料、農(nong)藥甚至制藥都要用(yong)(yong)(yong)(yong)到(dao)甲(jia)(jia)(jia)(jia)(jia)(jia)醇(chun)(chun)(chun)(chun)，有一(yi)(yi)些國家(jia)還使(shi)(shi)用(yong)(yong)(yong)(yong)甲(jia)(jia)(jia)(jia)(jia)(jia)醇(chun)(chun)(chun)(chun)融(rong)入(ru)汽油作為(wei)新型燃料。為(wei)了提(ti)(ti)升(sheng)甲(jia)(jia)(jia)(jia)(jia)(jia)醇(chun)(chun)(chun)(chun)合成的(de)(de)(de)效率(lv)與甲(jia)(jia)(jia)(jia)(jia)(jia)醇(chun)(chun)(chun)(chun)的(de)(de)(de)質(zhi)量，在(zai)甲(jia)(jia)(jia)(jia)(jia)(jia)醇(chun)(chun)(chun)(chun)合成的(de)(de)(de)過程中(zhong)都會加入(ru)催(cui)化劑(ji)的(de)(de)(de)使(shi)(shi)用(yong)(yong)(yong)(yong)，甲(jia)(jia)(jia)(jia)(jia)(jia)醇(chun)(chun)(chun)(chun)催(cui)化劑(ji)使(shi)(shi)用(yong)(yong)(yong)(yong)之后會對甲(jia)(jia)(jia)(jia)(jia)(jia)醇(chun)(chun)(chun)(chun)的(de)(de)(de)穩定(ding)性、油水(shui)的(de)(de)(de)活性、甲(jia)(jia)(jia)(jia)(jia)(jia)醇(chun)(chun)(chun)(chun)升(sheng)溫還原都會產(chan)生一(yi)(yi)定(ding)的(de)(de)(de)影(ying)響，為(wei)了保(bao)證使(shi)(shi)用(yong)(yong)(yong)(yong)催(cui)化劑(ji)的(de)(de)(de)作用(yong)(yong)(yong)(yong)效果，必須在(zai)使(shi)(shi)用(yong)(yong)(yong)(yong)時施(shi)行相應的(de)(de)(de)對策以提(ti)(ti)升(sheng)效率(lv)。本篇論文(wen)從(cong)甲(jia)(jia)(jia)(jia)(jia)(jia)醇(chun)(chun)(chun)(chun)合成催(cui)化劑(ji)的(de)(de)(de)使(shi)(shi)用(yong)(yong)(yong)(yong)情況入(ru)手進行分(fen)析，對催(cui)化劑(ji)使(shi)(shi)用(yong)(yong)(yong)(yong)過程中(zhong)存在(zai)的(de)(de)(de)問題進行了簡單的(de)(de)(de)分(fen)析，對提(ti)(ti)升(sheng)甲(jia)(jia)(jia)(jia)(jia)(jia)醇(chun)(chun)(chun)(chun)催(cui)化劑(ji)使(shi)(shi)用(yong)(yong)(yong)(yong)效果提(ti)(ti)出了相應的(de)(de)(de)建議。希望為(wei)我國的(de)(de)(de)甲(jia)(jia)(jia)(jia)(jia)(jia)醇(chun)(chun)(chun)(chun)制備(bei)工藝做出一(yi)(yi)定(ding)的(de)(de)(de)貢獻。

發布時(shi)間： 2020-10-11 16:22

摘(zhai)要：甲(jia)(jia)醇是化(hua)(hua)(hua)(hua)(hua)(hua)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)、石化(hua)(hua)(hua)(hua)(hua)(hua)和能源(yuan)行業(ye)最重(zhong)要的基礎(chu)原(yuan)料之(zhi)一，適(shi)度發展(zhan)天(tian)(tian)然氣(qi)(qi)制(zhi)甲(jia)(jia)醇產業(ye)可(ke)完善我國石油(you)企業(ye)在下游國際業(ye)務產業(ye)鏈的布局，提高產品的附加值，提升項目的效益，而(er)(er)商業(ye)甲(jia)(jia)醇生產工(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)藝(yi)(yi)(yi)(yi)(yi)均是基于合成氣(qi)(qi) （CO＋H2）的生產路線(xian)，工(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)藝(yi)(yi)(yi)(yi)(yi)技術(shu)的選擇對(dui)生產企業(ye)而(er)(er)言尤(you)為重(zhong)要。目前(qian)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)業(ye)上以(yi)(yi)天(tian)(tian)然氣(qi)(qi)為原(yuan)料制(zhi)甲(jia)(jia)醇合成氣(qi)(qi)的轉(zhuan)(zhuan)化(hua)(hua)(hua)(hua)(hua)(hua)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)藝(yi)(yi)(yi)(yi)(yi)包(bao)括(kuo)蒸(zheng)汽(qi)催化(hua)(hua)(hua)(hua)(hua)(hua)轉(zhuan)(zhuan)化(hua)(hua)(hua)(hua)(hua)(hua)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)藝(yi)(yi)(yi)(yi)(yi)、部分(fen)(fen)氧化(hua)(hua)(hua)(hua)(hua)(hua)轉(zhuan)(zhuan)化(hua)(hua)(hua)(hua)(hua)(hua)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)藝(yi)(yi)(yi)(yi)(yi)、熱交(jiao)換(huan)(huan)型轉(zhuan)(zhuan)化(hua)(hua)(hua)(hua)(hua)(hua)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)藝(yi)(yi)(yi)(yi)(yi)三大(da)類；蒸(zheng)汽(qi)催化(hua)(hua)(hua)(hua)(hua)(hua)轉(zhuan)(zhuan)化(hua)(hua)(hua)(hua)(hua)(hua)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)藝(yi)(yi)(yi)(yi)(yi)又(you)包(bao)括(kuo)水蒸(zheng)氣(qi)(qi)催化(hua)(hua)(hua)(hua)(hua)(hua)轉(zhuan)(zhuan)化(hua)(hua)(hua)(hua)(hua)(hua)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)藝(yi)(yi)(yi)(yi)(yi)、聯合轉(zhuan)(zhuan)化(hua)(hua)(hua)(hua)(hua)(hua)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)藝(yi)(yi)(yi)(yi)(yi)和預轉(zhuan)(zhuan)化(hua)(hua)(hua)(hua)(hua)(hua)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)藝(yi)(yi)(yi)(yi)(yi)，部分(fen)(fen)氧化(hua)(hua)(hua)(hua)(hua)(hua)轉(zhuan)(zhuan)化(hua)(hua)(hua)(hua)(hua)(hua)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)藝(yi)(yi)(yi)(yi)(yi)又(you)包(bao)括(kuo)催化(hua)(hua)(hua)(hua)(hua)(hua)部分(fen)(fen)氧化(hua)(hua)(hua)(hua)(hua)(hua)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)藝(yi)(yi)(yi)(yi)(yi)、非催化(hua)(hua)(hua)(hua)(hua)(hua)部分(fen)(fen)氧化(hua)(hua)(hua)(hua)(hua)(hua)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)藝(yi)(yi)(yi)(yi)(yi)，熱交(jiao)換(huan)(huan)型轉(zhuan)(zhuan)化(hua)(hua)(hua)(hua)(hua)(hua)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)藝(yi)(yi)(yi)(yi)(yi)又(you)包(bao)括(kuo)典型ICI換(huan)(huan)熱轉(zhuan)(zhuan)化(hua)(hua)(hua)(hua)(hua)(hua)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)藝(yi)(yi)(yi)(yi)(yi)和凱洛格換(huan)(huan)熱轉(zhuan)(zhuan)化(hua)(hua)(hua)(hua)(hua)(hua)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)藝(yi)(yi)(yi)(yi)(yi)。闡述幾種(zhong)天(tian)(tian)然氣(qi)(qi)制(zhi)甲(jia)(jia)醇合成氣(qi)(qi)轉(zhuan)(zhuan)化(hua)(hua)(hua)(hua)(hua)(hua)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)藝(yi)(yi)(yi)(yi)(yi)的發展(zhan)歷(li)程、工(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)藝(yi)(yi)(yi)(yi)(yi)技術(shu)特點(dian)及不(bu)足之(zhi)處，以(yi)(yi)期為天(tian)(tian)然氣(qi)(qi)制(zhi)甲(jia)(jia)醇合成氣(qi)(qi)轉(zhuan)(zhuan)化(hua)(hua)(hua)(hua)(hua)(hua)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)藝(yi)(yi)(yi)(yi)(yi)技術(shu)的選擇或技改(gai)提供一些(xie)參考。 關(guan)鍵詞：天(tian)(tian)然氣(qi)(qi)制(zhi)甲(jia)(jia)醇；轉(zhuan)(zhuan)化(hua)(hua)(hua)(hua)(hua)(hua)反應原(yuan)理；蒸(zheng)汽(qi)催化(hua)(hua)(hua)(hua)(hua)(hua)轉(zhuan)(zhuan)化(hua)(hua)(hua)(hua)(hua)(hua)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)藝(yi)(yi)(yi)(yi)(yi)；部分(fen)(fen)氧化(hua)(hua)(hua)(hua)(hua)(hua)轉(zhuan)(zhuan)化(hua)(hua)(hua)(hua)(hua)(hua)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)藝(yi)(yi)(yi)(yi)(yi)；熱交(jiao)換(huan)(huan)型轉(zhuan)(zhuan)化(hua)(hua)(hua)(hua)(hua)(hua)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)藝(yi)(yi)(yi)(yi)(yi)；發展(zhan)前(qian)景

發布(bu)時間： 2020-09-11 16:12

發布時間(jian)： 2020-09-01 15:01

發布時(shi)間： 2020-06-30 09:47

發(fa)布時間： 2020-06-24 10:53

發布時間： 2020-06-15 15:32

發布(bu)時(shi)間： 2020-04-23 15:45

發布時(shi)間： 2020-03-27 16:29

介紹了(le)以(yi)煤為原料，經純氧(yang)連續氣化(hua)(hua)(hua)得(de)到焦(jiao)爐(lu)(lu)氣，焦(jiao)爐(lu)(lu)氣經凈(jing)化(hua)(hua)(hua)、甲(jia)烷轉化(hua)(hua)(hua)，合(he)成(cheng)(cheng)甲(jia)醇(chun)(chun)的工藝流程。討論了(le)焦(jiao)爐(lu)(lu)氣中硫(liu)(liu)(liu)化(hua)(hua)(hua)物(wu)的存在對甲(jia)烷轉化(hua)(hua)(hua)催化(hua)(hua)(hua)劑、甲(jia)醇(chun)(chun)合(he)成(cheng)(cheng)催化(hua)(hua)(hua)劑活性的影(ying)響。采用濕法(fa)脫硫(liu)(liu)(liu)串干法(fa)脫硫(liu)(liu)(liu)的方(fang)法(fa)，以(yi)及兩次(ci)催化(hua)(hua)(hua)加氫串兩次(ci)氧(yang)化(hua)(hua)(hua)鋅脫硫(liu)(liu)(liu)工藝，有(you)(you)效脫除(chu)了(le)焦(jiao)爐(lu)(lu)氣中的H2S、COS、CS2、硫(liu)(liu)(liu)醚(mi)、硫(liu)(liu)(liu)醇(chun)(chun)和噻吩等(deng)硫(liu)(liu)(liu)化(hua)(hua)(hua)物(wu)，探討了(le)有(you)(you)機硫(liu)(liu)(liu)化(hua)(hua)(hua)物(wu)噻吩的脫除(chu)方(fang)法(fa)，并比較了(le)各種方(fang)法(fa)的優(you)缺點。

發布時間： 2020-03-24 15:08

介紹天(tian)然(ran)氣制甲醇(chun)天(tian)然(ran)氣轉(zhuan)(zhuan)化工(gong)(gong)序(xu)的主要工(gong)(gong)藝方案及(ji)各轉(zhuan)(zhuan)化工(gong)(gong)藝的主要特點(dian)，通過天(tian)然(ran)氣消耗和公(gong)用工(gong)(gong)程消耗的統計對(dui)比(bi)，對(dui)各轉(zhuan)(zhuan)化工(gong)(gong)藝進行運行經濟性比(bi)較，供類似裝(zhuang)置轉(zhuan)(zhuan)化工(gong)(gong)藝選擇參考。

發布(bu)時間： 2020-03-04 15:58

甲醇(chun)是(shi)極為重要(yao)的(de)(de)(de)有機(ji)化(hua)(hua)工(gong)(gong)原料(liao)和清(qing)潔液體燃料(liao)，是(shi)碳一(yi)化(hua)(hua)工(gong)(gong)的(de)(de)(de)基(ji)礎產品，甲醇(chun)化(hua)(hua)工(gong)(gong)是(shi)有機(ji)化(hua)(hua)工(gong)(gong)的(de)(de)(de)一(yi)個重要(yao)分支(zhi)。由(you)天然(ran)氣制甲醇(chun)需(xu)要(yao)先將(jiang)天然(ran)氣經過部分氧化(hua)(hua)或者水蒸氣轉化(hua)(hua)制得合(he)成(cheng)氣（CO和H 2），再由(you)合(he)成(cheng)氣合(he)成(cheng)甲醇(chun)。由(you)于甲醇(chun)的(de)(de)(de)生(sheng)產工(gong)(gong)藝簡單(dan)，反應條件溫(wen)和，技術容易突破，甲醇(chun)及其衍(yan)生(sheng)物有廣泛的(de)(de)(de)用途，世界各國都把甲醇(chun)作為碳一(yi)化(hua)(hua)工(gong)(gong)的(de)(de)(de)重要(yao)研(yan)究領域。

發(fa)布時間(jian)： 2020-02-24 14:01

摘要(yao)：結(jie)合(he)DAVY低壓甲醇合(he)成(cheng)技術的(de)(de)特點(dian)，簡介結(jie)蠟現象對(dui)DAVY甲醇合(he)成(cheng)系統的(de)(de)不良影響，著重闡述合(he)成(cheng)系統結(jie)蠟的(de)(de)原(yuan)因(yin)，并根據日常(chang)生產情(qing)況，有針對(dui)性地制(zhi)定(ding)預防措施，及時調整工藝(yi)參(can)數(shu)且進行(xing)在線除蠟，從而實現系統的(de)(de)穩定(ding)運(yun)行(xing)、降本增效。

發布(bu)時(shi)間： 2020-02-18 15:24