Nga momo hangarau hanga polyethylene PE

I roto i te hanga o weronga whakarewa nga wahanga, e kore e taea te whakamahi i nga rauemi mata kirihou. I tenei ra ka whakamaramahia e matou te tukanga whakaputa o te pe, te matua o te ao 11 momo hangarau hanga polyethylene PE

I tenei wa, he maha nga kamupene me hangarau polyethylene i te ao, tae atu ki 7 kamupene whai hangarau LDPE, 10 kamupene whai LDPE me te hangarau kiato tonu, me 12 kamupene whai hangarau HDPE. Mai i te tirohanga o te whanaketanga hangarau, Ko te hanga pehanga teitei o te LDPE ko te tikanga tino pakeke i roto i te hanga o te kapia PE. Kua pakeke te tikanga kettle me te tikanga ngongo. I tenei wa, ka noho tahi enei hangarau hanga e rua. Ko nga whenua whakawhanake i te nuinga o te waa ka tango i te tukanga whakaputa tubular. Hei taapiri, Ko nga kamupene o tawahi e whakamahi ana i nga whakakorikori whakakorikori teitei-te-mahana-iti hei timata i nga punaha polymerization, ka taea te whakaiti i te pāmahana hohenga me te pehanga. Ko te whakaputanga pehanga teitei o te LDPE ka whanake i te ahunga o te hanga nui-nui me te hanga ngongo. Ko te hanga pehanga iti o te HDPE me te LLDPE te nuinga o te whakamahi i te titanium me te whakakorikori uaua. Ko Uropi me Hapani te nuinga o te whakamahi i nga miihini titanium momo Ziegler, i te nuinga o te United States e whakamahi ana i nga whakakōkī uaua. I tenei wa, kei reira 11 nga momo hangarau hanga polyethylene e whakamahia ana i te ao. He kupu whakataki poto e whai ake nei:
(1) Basel kamupene hau wāhanga Spherilene tukanga

Ko te hanga o te PE raina ka puta mai i te PE kiato iti rawa (ULDPE) ki LLDPE, me te HDPE hoki. Tikina

Ziegler-Natta momo titanium-based whakakōkī me Spherilene tukanga hau hau e whakamahia ana. I te aroaro o te waiwaro korekore marama, te whakakōkī me te whāngai kua mua-polymerized i roto i te nuinga tuatahi, ka puta te polymerization i raro i nga ahuatanga ngawari. Ka uru te slurry ki te reactor wahanga hau tuatahi, ka whakamahi i te whakamatao hiko porowhita ki te whakakore i te wera, katahi ka uru ki nga reactors wahanga hau e rua. Ko te kiato o nga hua ka puta mai i te ULDPE (iti iho i te 900kg/m3) ki HDPE (nui ake i 960 kg/m3), me te tere rere rewa (MFR) awhe mai 0.01 ki 100. Na te whakamahi i nga reactors wahanga hau e rua, ka taea e ia te whakaputa i nga polymers me nga polymers motuhake. Nga mea. Mai i te wa i whakauruhia te tukanga Spheri Lene ki te maakete i roto 1992, kei a ia inaianei te kaha whakaputa 1.8 miriona taranata ia tau. E ono nga waahanga whakaputa (1 i roto i te United States, 2 i Korea ki te Tonga, 2 i Paratira, me 1 i Inia) kua whakatinanahia, me etahi atu e rua (1 ia i Inia me Iran) kei te hangaia. Ka taea e te kaha whakaputa raina kotahi te eke 100,000 tana mo ia waeine. Kotahi 300,000 tone ia tau. I tenei wa, Karekau a Haina he waahi whakangao mo tenei momo hangarau.
（2）Tukanga Borealis Bastar

Ka taea e te tukanga PE Beixing te whakaputa LLDPE bimodal me te unimodal, MDPE (kiato reo PE) me te HDPE. whakamahi

raupapa raupapa, wahanga hau reactor pehanga iti. Ko te kiato o PE ko 918-970kg/m3, a ko te taupū rewa ko 0.1-100. Whakauruhia te Z-N catalyst, Ssc ranei (pae kaha kotahi) whakakōkī.

Ko te whakakorikori me te waimeha propane ka konatunatua ki te reactor pre-polymerization kiato, me te whakakōkī tahi,

Ethylene, comonomer me te hauwai. Ko te slurry i mua i te polymerized ka uru ki te rua o nga reactor slurry loop nui ake ka mahi i raro i nga ahuatanga tino nui. (75-100C, 5. 5-6.5 MPa). Ka taea te whakaputa hua bimodal. Ka tukuna atu ano te polymer kanapa ki te reactor hau mo te moenga me te kore e taapiri i nga whakakōkī hou, a ka taea te whiwhi homopolymers. Ko nga tikanga tauhohenga hau: 75-100C, 2. 0MPa. Ko te huinga tuatahi o nga taputapu ahumahi i whakauruhia ki Finland i 1995, me nga raina whakaputa e rua (450,000 toni/tau hua bimodal) hanga i roto i Abu Dhabi i hoatu ki te mahi i roto i te hawhe tuarua o 2001. Ko te huinga tuarima o 250,000 tana/tau (te huinga tuarua o te bimodal) i hanga ano ki Haina Shanghai Petrochemical Company, ka noho hei taputapu PE nui rawa atu o Haina. Ko te kaha o te hoahoa hoahoa o tenei raina kotahi o tenei tukanga ka taea 300,000 tana/tau.
(3) Te wahanga hau a BP te tukanga Innovene

Ka taea e ia te whakaputa hua LLDPE me HDPE, te whakamahi i te Z-N titanium-based, whakakōkōkī chromium-based metallocene ranei. Chrome

Ka taea e te kaihoko matū te whakaputa hua me te whanui o te tohatoha taumaha ngota, me te Ziegler-Natta (Z-N) ka taea e te whakakōkī te whakaputa hua ki te tohatoha taumaha rāpoi whāiti. Ko nga tikanga whakahaere o te reactor mo te moenga he ngawari, i te 75-100C me te 2.0MPa. Ka taea te whakamahi i te butene me te hexene hei comonomer. 30 kua mahia nga huinga o nga raina whakaputa, hoahoa hanga ranei. Ko te kaha mai i 50,000 ki 350,000 tone ia tau.

Ka mahi tahi a Technip me BP i Uropi, te Soviet Union o mua, Amerika ki te Tonga, Haina me Mareia
Tautokohia te tukanga Innovene a BP mo te hanga polyethylene. Kua nui ake te kaha o te Innovene PE a BP 8 miriona taranata ia tau, tae atu ki nga taputapu PE i Bandar Iman i Iran, Grangermus i Kotirana, Peokara i Initonetia, me Keltih i Mareia. Ko te roha tuarua o te tipu LLDPE/HDPE o te Kamupene Petrochemical Dushanzi o Haina i tango hoki i te tukanga Innovene., piki mai 120,000 tana/tau ki 200,000 tana/tau. He hou a SECCO 600,000 ka whakamahia e te maha o te polyethylene tenei hangarau.
(4) Te tukanga tauhohenga ngongo me te kettle a ExxonMobil

High-pressure free radical process is used to produce LDPE homopolymer and EVA (ethylene vinyl acetate) copolymer.

Large-scale tubular reactors (capacity of 130 ki 350,000 tana/tau) and stirred tank reactors (capacity of about 100,000 tana/tau) are used. The operating pressure of the tubular reactor is as high as 300MPa, and the tank reactor is lower than 200MPa. The advantage of the high-pressure process is to shorten the residence time, and the same reactor can be switched from producing homopolymers to copolymers. The density of homopolymer polymer is 912-935 kg/m3, a ko te taupū rewa ko 0.2-150. The vinyl acetate content can be as high as 30%. The material consumption and energy consumption per ton of polymer production are: 1.008 tons of ethylene, 800kwh of electricity, 0.35t of steam, and 5m3 of nitrogen. 23 sets of high-pressure process reactors have been put into operation, with a production capacity of 1.7 miriona taranata ia tau. Te whakaputanga o nga homopolymers me nga momo copolymers. I tenei wa, Ko te tipu LDPE 200,000-ton / tau hou a Yanshan ka tango i te hangarau tikanga ngongo a te kamupene..
（5) Mitsui Chemicals tukanga slurry slurry Cx iti-pēhanga

Ka taea e ia te whakaputa HDPE me MDPE, te whakamahi i te tikanga slurry iti-pēhanga tukanga CX. Ka taea te whakaputa i te toha taumahatanga rapoi bimodal

Ko te hua. Ethylene, hauwai, comonomer me te whakakōkī mahi ultra-high ka uru ki te reactor, ka puta te tauhohenga polymerization i te ahua slurry. Ka taea e te punaha whakahaere aunoa o te whare polymer te whakahaere i te kounga o te hua, me te whakakorikori mahi ultra-tiketike e kore e tika kia tangohia mai i te hua. 90% o te whakarewa i wehea mai i te slurry ka taea te hangarua tika ki te reactor kaore he maimoatanga. Ka taea e ia te whakaputa i nga hua whaiti, whanui ranei te tohatoha taumahatanga ngota me te kiato o 930-970 kg/m3 me te taupū rewa o 0.01-50. Ko te kohi rawa me te whakapau kaha mo ia tana o nga hua ka puta: 1010 kg o ethylene me comonomers, 305 kWh o te hiko, 340 kg o mamaoa, 190 tone o te wai whakamatao, me 30 m3 hauota. 35 kua mahia nga raina whakaputa, kei te hanga ranei, me te kaha katoa o 3.6 miriona taranata ia tau. I tenei wa, Ko nga umanga a-whare e whakamahi ana i tenei hangarau te nuinga ko te tipu 220,000-ton i Daqing, te tipu 140,000-ton i Yangtze me Yanshan, me te tipu 70,000-ton i Lanzhou.
(6) Chevron-Philips reactor rua tukanga LPE

Ka whakamahia te tukanga LPE a te Kamupene hinuhinu a Phillips ki te whakaputa polyethylene raina (LPE). He whakakōkī tino kaha

Ka polymerized te kaihoko matū i roto i te reactor loop me te slurry isobutane. Product melt index and molecular weight distribution can be adjusted and controlled by catalyst, operating conditions and hydrogen. The comonomer can be butene-1, hexene-1, octene-1 and the like. The high activity catalyst makes it unnecessary to remove the catalyst, and no paraffin or other by-products are formed during polymerization, which greatly reduces the environmental pollution. Ethylene, isobutane, comonomer and catalyst continuously enter the loop reactor and react at a temperature lower than 100C and about 4.0 MPa, and the residence time is about 1 hour. The single-pass conversion rate of ethylene exceeds 97%. Ko te kohi rawa me te whakapau kaha mo ia tana o nga hua ka puta: 1.007 tons of ethylene, US$2-10 for catalysts and chemicals (for different products), 350 kWh o te hiko, 0.25 ton of steam, 185 ton of cooling water, me 30 m3 hauota. 82 production lines have been put into operation and construction, accounting for 34% of the world’s PE capacity. Ko te tipu 135,000-ton o Shanghai Jinfei Company e whakamahi ana i tenei hangarau. Ko te taputapu hou 350,000-ton/tau hou a Maoming ka taea ano te whakamahi i tenei hangarau.
(7) Ko te kamupene hangarau univation te wahanga hau pehanga iti te tukanga Unipol

Ko te LLDPE-HDPE ka hangaia e te pehanga iti, hau-pēhanga Unipol PE tukanga. Te whakamahi whakakōkī slurry me te hau

Wāhanga, reactor moenga wai. Ki te whakakōkī tikanga me te metallocene, e kore e hiahiatia te taahiraa tango whakakōkī. He iti ake nga utu haumi me nga utu whakahaere, me te iti o te parahanga ki te taiao. Ethylene, ka uru te comonomer me te whakakōkī ki te reactor moenga wīwī, ko nga tikanga whakahaere mo te 100C me te 2.5MPa. Ko te kiato hua ko 915-970kg/m3, a ko te taupū rewa ko 0.1-200. E ai ki te momo whakakōkī, ka taea te whakatika i te tohatoha taumahatanga ngota whanui ranei. 89 kua whakauruhia nga raina whakaputa ki te mahi, ki te hanga ranei. Ka taea e te kaha raina kotahi 410,000 ki 450,000 tone ia tau. I tenei wa, he maha nga taputapu whare e whakamahi ana i tenei hangarau, ko Maoming te nuinga, Jihua, Ko Yangtze, Tianjin, Zhongyuan, Guangzhou, Daqing, Kilu, etc..

(8) Stamicarbon 4a COMPACT IZ Ka whakamahia e tenei tukanga nga whakakōkī Z-N matatau me te whakamahi hangarau COMPACT Solution ki te whakaputa i te kiato o

900-970kg/m3 o PE. Ka whakamahia he reactor tank whakakorikori, me te pāmahana polymerization he 200C. Ka whakamahia te hauwai hei whakahaere i te taumaha ngota o te polymer. Karekau he taahiraa tango whakakōkī e hiahiatia ana. Ko te kohi rawa me te whakapau kaha mo ia tana o nga hua: ethylene me te comonomer 1.016t, hiko 500kwh, mamaoa 400kg, wai whakamatao 230m3, iti pehanga mamaoa (putanga) 330kg. Kei reira 5 nga huinga taputapu e mahi ana, me te kaha katoa o 650,000 tana / tau.
(9) Basel Polyolefin Kamupene Hostalen Tukanga

Ka whakamahia te tukanga hostalen o te tank whakaoho hei whakaputa HDPE. Whakamahia kia rua nga reactors ki te whakarara, rangatū ranei

Te polymerization. Ko te kohi rawa me te whakapau kaha mo ia tana o nga hua ka puta: 1.015 t o te ethylene me nga comonomers, 400 kg o mamaoa, 350 kwh of electricity, me 165 m3 o te wai whakamatao. Kei reira 31 raina whakaputa i te mahi, i raro ranei i te hoahoa, me te kaha whakaputa tata 3.4 miriona taranata ia tau. I tenei wa, Ko te taputapu o-whare e tango ana i tenei hangarau ko te Kamupene Liaohua, me te kaha whakaputa anake 40,000 tone. Ka taea e te raina kotahi o naianei te kaha whakaputa o tenei hangarau 350,000 tana/tau, a ka taea e ia te whakaputa tata ki nga hua katoa tae atu ki a Bifeng, i roto i ona hua penei i te kiriata, Ko te hollow me te paipa he ingoa nui ki te ao.