Petrifaction of Jilin of the oil in Feburary 8 will build LDPE and HDPE project, use Liandebasaier's technology, liandebasaier announces as follows in its website:
The company announces Liandebasaier, limited company of oil Jilin petrifaction will be located in Jilin factory to use polyethylene technology of Liandebasaier again in its. Include LyondellbaSell is new banner high-pressured Lupotech engineering technology, this technology uses 100 thousand tons / year high-pressured boiler mixes 300 thousand tons / year product line tubal form. These two product line basically will produce low density polyethylene (LDPE) with copolymer of ester of ethylene of ethylene acetic acid (EVA) . In addition, the ” of craft of Hostalen“ advanced cascade that still will build to produce per year 400 thousand tons at the same time (ACP) product line, use at producing high density polyethylene (HDPE) .
Application of a few years proves, lyondellbaSell Lupotech craft makes EVA/LDPE device choose a technology. This technology is had tall change rate, the craft heat with tall, efficient dependability is compositive the key that is Lupotech craft. LyondellbaSell already obtained more than 15 million tons of Lyondellba on many 80 product lineThe license of technology of LDPE of Sell high pressure.
Transition upgrades
PE
Last year on Feburary 8, 945 ” of oil and Jilin province “ plan one of priority discipline transition of company of petrifaction of —— oil Jilin upgrades the project is started in Jilin city.
According to introducing, transition of company of oil Jilin petrifaction upgrades the project is municipal government of municipal Party committee of government of province of Jilin provincial Party committee, Jilin and oil are driven jointly. This project can grind the newspaper approves total investment not to contain tax thirty-three billion nine hundred and forty-five million yuan. Main content includes: 400 thousand tons / year plant of high density polyethylene, 600 thousand tons / year the device of chemical industry of 21 oil refining such as ABS, transform 9 suit place, halt use 150 thousand tons / year the 7 suit buy such as ethylene.
After building go into operation, process capability of oil refining of company of oil Jilin petrifaction carries existing scale, “ decreases oil to add turn ” result remarkable, year can reduce oil to taste 2.63 million tons, increase production chemical industry tastes about 2.8 million tons.
It is reported, jilin city is returned bend force outspread industry chain, go up to develop capital attraction downstream around the project, high quality plan pushs project of 120 form a complete set, collective support auspicious changes northern company to do do greatly strong, accelerate make change transition to upgrade to turn industry industry group subtly for the one billion two hundred and fifteen million seven hundred and fifty-two thousand one hundred and ninety-two class of bibcock with auspicious, the one billion two hundred and fifteen million seven hundred and fifty-two thousand one hundred and ninety-two course that are a delegate with carbon fiber production are advanced data industry group,
As we have learned, this item crude oil adjusts crude oil to machine sort on the foundation with total treatment changeless dimensions, build 2.2 million tons / year device of cracking of candle oily hydrogenation (contain 300 thousand tons / year naphtha different compose is detached) , 1 million tons / year derv adsorption device mixes 300 thousand tons / year C2 reclaims device; To having Ⅰ constant decompression device undertakes different ground is transformed, process crude oil of Russia of crude oil instead, device of Ⅱ constant decompression undertakes machining celebrating / the adaptability of auspicious crude oil is transformed; 900 thousand tons / year cracking device transforms hydrogenation to change qualitative unit for catalytic derv hydrogenation, device is raw material with derv of straight heat up in a steamer below the condition that carries crude oil process capability, process candle oil no longer; Be opposite 1 million tons / year defer cooking device undertakes environmental protection transform; To 2+2 10 thousand tons / year sulfureous reclaim the Ⅲ in combining unit is sulfureous reclaim system of device dissolvent second birth undertakes adaptability is transformed, make its treating capacity achieves 240 tons / hour, close plant of catalytic cracking stopping Ⅱ .
Chemical part builds 1.2 million tons / year ethylene plant, downstream form a complete set builds 1 million tons / year hydrogenation of splitting decomposition benzine, 450 thousand tons / year device of combination of aromatic hydrocarbon extraction, 400 thousand tons / year plant of high density polyethylene, 300 thousand tons / year annulus oxygen ethane device, 400 thousand tons / year EVA device, 350 thousand tons / year phenol acetone.
Polyethylene (Polyethylene) it is one of 5 big synthetic resin, at present our country already was to go up big polyethylene entrance country and country of the 2nd big spending. Polyethylene basically is divided spend polyethylene for high density (HDPE) , low density polyethylene (LDPE) , polyethylene of linear low density (LLDPE) 3 kinds big.
High density spends polyethylene
HDPE
HDPE avirulent, insipidity, without smelly, density is 0.94 ～ 0.976g/cm3, it is in Ziegler activator catalysis falls, aggregate child leaves in low-pressure condition, so high density polyethylene also calls low-pressure polyethylene.
HDPE
Advantage:
HDPE is what by ethylene copolymerization generates crystallization one kind to spend polarity of tall, blame is thermoplastic colophony. The appearance of former state HDPE is shown ivory, be in scanty and sectional the translucent account that shows fixed rate. Its are had be able to bear or endure admirably most life and industrial the character of chemical, it can fight strong oxidant (thick nitric acid) , soda acid salt and organic dissolvent (4 chloridize carbon) corrode and dissolve. This polymer not the waterproof vapour sex that moisture absorption has had, can use at the moistureproof utility that prevent ooze.
HDPE
Defect:
Insufficient place is ageing resistance can be inferior to LDPE with sex of environmental stress craze, heat up oxidation to be able to make its function is reduced especially, so high density polyethylene is being made plastic a point that antioxidant and ultraviolet absorbefacient added to improve its to be not worth when material.
Low density polyethylene
LDPE
LDPE avirulent, insipidity, without smelly, density is 0.91 ～ 0.940g/cm3, it is to be below the high pressure of 100 ～ 300MPa, with oxygen organic perhaps oxide is activator polymerization and become too, also call high pressure polyethylene.
HDPE
Advantage:
Low density polyethylene is the assortment with small quality in polyethylene colophony. Spend polyethylene photograph to compare with high density, its crystallization is spent (55% ～ 65% ) with softening point (100 ℃ of 90 ～ ) inferior; Have sex of good plasticity, extensibility, transparency, cold-resistant and processability; Its chemistry stability is better, but acid-proof, alkaline with salt kind aqueous solution; Have good insulating property and permeability; Water imbibition is low; Easy combustion. Property is softer, have good extensibility, insulating property, chemical stability, processability to be able to be mixed be able to bear or endure microtherm sex (can be able to bear or endure - 70 ℃ ) .
HDPE
Defect:
Insufficient place is his mechanical intensity, lie between wet sex, lie between temperament and solvent resistance poorer. Molecular structure is not quite neat, crystallization is spent (55%-65% ) low, crystallization melting point (108-126 ℃ ) inferior also. Its are mechanical intensity spends polyethylene under high density, the coefficient that prevent ooze, hear resistance and fight difference of solar ageing sex, easy below sunlight or high temperature ageing is decomposed and become angry, bring about function to drop, so low density polyethylene is being made plastic a point that antioxidant and ultraviolet absorbefacient added to improve its to be not worth when material.
Polyethylene of linear low density
LLDPE
LLDPE avirulent, insipidity, without smelly, density is in 0.915 ～ 0.935g/cm3 between, be ethylene and a few advanced α- olefin (like Ding Xi - 1, personal Xi - 1, Xin Xi - 1, Xi of 4 methylic the fifth of the ten Heavenly Stem - 1 etc) fall in activator action, a kind of becomes via high pressure or low-pressure polymerization copolymer. The molecular structure of groovy LLDPE with its linear advocate catenary is a feature, only a few or did not grow a catenary, but include a few short pay chain. Did not grow a catenary to make the crystallization sex of polymer taller.
LLDPE and LDPE photograph taller than having strength, tenacity is good, rigid the advantage such as strong, heat-resisting, cold-resistant, still have be able to bear or endure goodly environmental stress craze, be able to bear or endure the function such as tear strength, and but acid-proof, alkaline, organic dissolvent.
Divisional method
PE
LDPE: The sense organ differentiates: Feel softness; White is transparent, but diaphaneity is general.
Combustion differentiates: Fizzle out on combustion blaze below blue; When combustion smokeless, have the taste of olefin, melt is drippy, yilasi.
LLDPE: LLDPE and benzene are contacted for long can produce dissolve to bilge, contact for long with HCL can become fragile.
HDPE: The treatment temperature of LDPE is a few lower, about 160 degrees or so, density is cubic metre of ／ of 0.918 one 0.932 grams centimeter. HDPE treatment temperature is some higher, about 180 degrees, density is a few higher also.
Summary
PE
The analysis on put together, 3 kinds of afore-mentioned material are taking on to weigh wanted job severally in type of the different project that prevent ooze. HDPE, LDPE and LLDPE3 are planted material is had very good insulation and the moistureproof, function that prevent ooze, function of avirulent, insipidity, scentless makes its are in the application on agriculture, aquiculture, artificial lake, reservoir, wadi is extremely wide also, get machine of academy of midwifery of water of bureau of fishery of Ministry of Agriculture, Shanghai, fishery the big thrust of instrument institute is wide reach popularize application.
In the medium environment of strong acid, alkali, strong oxidant and organic dissolvent, the material of HDPE and LLDPE pledges function can get be developed very well and be usinged, especially HDPE is fighting function of strong acid, alkali, strong oxidation and the characteristic side that fight organic dissolvent far outclass is other two kinds of material, so HDPE prevents ooze anticorrosive roll material got be usinged adequately in industry of chemical industry, environmental protection.
And the character that LDPE also has solution of very good acid-proof, alkaline, salt, and have good extensibility, insulating property, chemical stability, processability can mix be able to bear or endure microtherm sex, breed in agriculture, store water so, pack, microtherm is packed and apply on cable material especially relatively extensive.