Lub hauv paus rau phau ntawv
Ethylene (C2h4), raws li ib qho ntawm cov ntaub ntawv tseem ceeb hauv kev lag luam petrochemical, yog tsis muaj kev tsis ntseeg ntawm nws qhov tseem ceeb. Ethylene tsis yog tsuas yog siv dav siv hauv cov tshuaj lom neeg ib txwm muaj xws li cov roj hmab tsoos thiab roj hmab, tab sis kuj tseem pom cov ntawv thov zoo muaj peev xwm thiab tus nqi hauv kev ua haujlwm zoo. Kab lus no ants tshawb cov ntawv thov ntawm ethylene nyob rau hauv lub tshav pob ntawm cov tshuaj zoo, txheeb xyuas cov qauv tshuaj, kev npaj, thiab nws cov haujlwm tseem ceeb hauv kev tsim cov tshuaj zoo.
Cov khoom tseem ceeb ntawm ethylene
Ethylene yog qhov tsis muaj kob thiab cov roj tsw me me. Nyob rau hauv chav tsev kub, nws qhov ntom yog tsawg dua li ntawm huab cua thiab nws yog insoluble hauv dej, tab sis nws yooj yim soluble hauv cov kuab tshuaj yeeb yaj kiab xws li carbonhloride. Lub ethylene molecule muaj cov pa roj carbon-carbon ob kab mob (c}}}}} heev rau ntau yam tshuaj lom neeg xws li, polymerization, thiab oxidation. Ethylene tsis yog tsuas yog cov khoom siv raw rau sterthesizing plastics (xws li polyethylene thiab polypropylene), tab sis kuj lub hauv paus rau ntau cov tshuaj zoo.
Cov ntawv thov ntawm ethylene nyob rau hauv lub tshav pob ntawm cov tshuaj zoo
1. Khoom cua ntawm cov tshuaj zoo
Ethylene tuaj yeem ua ke mus rau ntau yam tshuaj lom los ntawm cov txheej txheem ntawm cov tshuaj lom neeg. Cov tshuaj no muaj cov kev siv ntau rau hauv cov ntawv siv tshuaj, tshuaj tua kab, zas, thiab tsw qab. Piv txwv li, ethylene tuaj yeem oxidized los tsim cov acetaldehyde, thiab ntxiv cov kev tawm tsam Organic kuab tshuaj thiab cov khoom siv raw xws li acetic acid thiab ethanol; Ethylene kuj tseem tuaj yeem hnov cov tshuaj chloride los ua cov vinyl chloride, uas yog siv dav hauv kev tsim kho polyvinylized (pev, xaim thiab cables, thiab lwm daim teb.
2. Npaj cov ntaub ntawv siab heev
Nrog kev nce qib ntawm thev naus laus zis thiab kev txhim kho kev ua lag luam tawm, kev siv ethylene nyob rau hauv kev npaj ntawm high-ast cov ntaub ntawv tau dhau los ua ntau zuj zus. Ethylene capolymers xws li Eva (Ethylene-Vinyl acetate Copolymer) thiab pyee (polyolin elastomer) tau siv dav hlau thiab cables, thiab cov khoom siv hluav taws xob vim lawv cov khoom siv hluav taws xob zoo. Cov ntaub ntawv siab kawg tsis tsuas yog txhim kho cov khoom lag luam uas tab sis kuj txhawb kev kho tshuab thev naus laus zis thiab kev siv tshuaj txuas ntxiv ntawm kev lag luam.
3. Biodegradable plastics
Nrog rau kev paub txog kev tiv thaiv kev tiv thaiv ib puag ncig, biodegradable plastics tau dhau los ua cov kev tshawb nrhiav hotspot. Ethylene, raws li ib qho ntawm cov khoom siv raw, ua lub luag haujlwm tseem ceeb hauv kev tsim khoom ntawm biodegradable plastics. Los ntawm kev siv hluav taws xob tshwj xeeb thiab tshuaj hloov kev hloov pauv, ethylene tuaj yeem hloov mus rau hauv yas monomers nrog biodegradability, yog li npaj defladable plastics. Cov ntaub ntawv no muaj cov kev cia siab tau txais kev cia siab xws li ntim, kev ua liaj ua teb, thiab kev noj qab haus huv, pab kom txo cov pa phem dawb thiab tiv thaiv ib puag ncig.
4. Catalysts thiab ntxiv
Ethylene kuj tseem tuaj yeem siv los ua cov khoom siv raw los ua ntau catalysts thiab ntxiv, uas tau ua haujlwm los txhim kho cov tshuaj tiv thaiv thiab kev ua haujlwm ntawm cov tshuaj lom neeg. Piv txwv li, Ethylene tuaj yeem hloov mus rau antylene oxide los ntawm kev tawm tsam oxidation, thiab ethylene oxide tuaj yeem ua rau cov tshuaj ethylene glycol thiab ethanolamine. Cov tshuaj no muaj cov kev siv ntau rau hauv cov kab mob hluavtaws hluav taws xob thiab cov surfactants. Ib qho ntxiv, yuav siv tau los ua cov khoom siv raw kom tsim cov khoom sib ntxiv polymer, uas tau siv los txhim kho kev ua haujlwm thiab lub cev cov khoom siv ntawm cov polymers.
Kev nrhav hauv hom thev naus laus zis ntau lawm
Txhawm rau kom tau raws li qhov kev thov rau cov ethylene zoo nyob rau hauv kev lag luam tshuaj zoo, thev naus laus zis rau kev tsim tawm ethylene tau tas li. Kev lig kev cai, Ethylene yog feem ntau tsim los ntawm kev tawg hydroxarbon tebchaw hauv roj av lossis cov nkev, uas muaj teeb meem xws li muaj zog siv hluav taws xob thiab cov pa phem hnyav. Nyob rau hauv xyoo tsis ntev los no, tshiab catalytic cracking technologies thiab biotechnological kev tsim khoom tau tshwm sim, nqa cov kev hloov pauv hloov mus rau kev tsim khoom rau ethylene. Tshiab catalysts tuaj yeem ua tiav qhov tawg ntawm alkanes ntawm qis dua kub, txhim kho lub purity thiab ntau lawm effecticy cov khoom; Kev siv biotechnological ntawm ethylene siv cov khib nyiab pov tseg lossis cov khoom siv txuas ntxiv rau cov khoom siv tshuaj lom neeg thiab txo qis cov khoom siv pob zeb thiab minimizing tsev cog khoom roj kuab pa roj carbon monissions.
Tag
Nanjing Zhongyan Zog, raws li cov khoom lag luam hauv tsev ntawm cov khoom siv ethylene raw khoom, muaj ntau yam khoom tseem ceeb. Ethylene, raws li ib qho ntawm cov ntaub ntawv tseem ceeb hauv kev lag luam petrochemical, yog dav thiab tob tob thiab siv tau nyob hauv kev ua tshuaj zoo. Los ntawm cov tshuaj lom neeg ntawm cov tshuaj lom neeg thiab cov kev tsim kho thev naus laus zis, cov ntaub ntawv muaj kuab heev, ua kom muaj tshuaj tua kab, kev lag luam tsis zoo li qub. Nyob rau hauv lub neej yav tom ntej, nrog kev nce qib ntawm kev paub tshuab thiab kev txhim kho ib puag ncig ib puag ncig, kev siv tshuaj ethylene nyob rau hauv kev ua haujlwm zoo yuav ua kom dav thiab tob tob. Nyob rau tib lub sijhawm, ntxiv dag zog rau kev tsim kho cov tshuab ua ke thiab txhawb nws daim ntawv thov yuav pab txhim kho cov khoom lag luam ethylene thiab txhawb nqa cov khoom siv ethylene thiab txhawb nqa kev txhim kho cov tshuaj lom neeg zoo.
