Setting: Price of futures of crude oil WTI the 60 dollars from 7 the beginning of the year / bucket all the way raise, up to 8 years the bottom reached 140 dollars in July / the history of the bucket is exalted. Glycol fastens one of important raw material of polyester dacron, its are main producer goods reachs natural gas for ethylene. When times of high oil price comes, the market begins to seek whether to have more the production methods of environmental protection will alleviate the pressure of crude oil, biology makes take advantage of an opportunity of glycol new technology and unripe.
Glycol is a kind of colorless and transparent ropy liquid, smell is sweet, have hygroscopic; Can with elementary and water, adipose a group of things with common features alcohol, glycerine, acetic acid, acetone, reach similar ketone, aldehyde kind, pyridine kind reach similar coal tar is alkaline kind mix dissolve, aether of small dissolve Yu Yi, scarcely dissolve reachs aether of its homologue, chloric acting hydrocarbon, oil and oil at benzene kind; Have noxiousness. The main application of glycol is to make take polyester fibber fiber and polyester colophony, it is the agent fighting aspic that is used at car refrigeration system next (after mixing with water, frozen temperature can fall to - 70C) and solvent, lubricant, add wet agent, dynamite to wait.
The main raw material with existing glycol is ethylene and natural gas. Glycol is direct raw material is annulus oxygen ethane: Glycol is the reactant of annulus oxygen ethane and water, it is ramification of the heaviest annulus oxygen ethane. Outside dividing glycol, the ％ of 10 ％ ~20 of crop of annulus oxygen ethane is used at producing exterior activator and other a variety of industrial chemicals. Oxygen ethane and glycol arrange annulus to be produced in a device normally. Dosage: EO of ethylene ×0.84 ＝ ; EO×0.71=MEG; MEG is so right of ethylene use up than in 3: 5. At present commonly used indirect raw material is naphtha, natural gas, the manufacturing trade that uses natural gas to produce glycol basically is the SABIC that is in middle east and Iranian petrifaction, adscititious MEGLOBAL.
Existing commonly used glycol produces craft to have chloric pure law, oxygen way. Production of ethane of inchoate annulus oxygen uses technology of chloric pure law. 1922 company of UCC(couplet carbon) build first industry plant; Later the research result according to French Lefort, UCC built plant of industry of first air standard again 1938. 1958 company of Shell(carapace card) build plant of industry of first oxygen law. Chloric pure law is put in problem of 3 useless pollution, because this is current,production of ethane of oxygen of domestic outer shroud uses ethylene entirely almost technology of direct oxidation law, and major firm makes oxidizer with oxygen, massive industrial plant uses aerobic law to be able to save installation cost cost.
Technology of production of ethane of global annulus oxygen still uses science of SD(of Ying He Shell, United States to design a company for the most part) with Home UCC3 company, the technology of these 3 companies occupies the 90 ％ above of total productivity of annulus oxygen ethane, among them Shell offers aerobic law technology only, SD offers air standard and aerobic way, although UCC also has aerobic law and air standard technology, but use for him manufacturer only. Still have the patent technology of DOW in recent years additionally, the technology of glycol of legal system of ester of carbonic acid ethylene of research and development of 3 company of water chestnut chemistry.
Previous12 3 Next
Hot Tags: