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English for specific purposes (ESP) is a subset of English as a second or foreign language. It usually refers to teaching the English language to university students or people already in employment, with reference to the particular vocabulary and skills they need. As with any language taught for specific purposes, a given course of ESP will focus on one occupation or profession, such as Technical English, Scientific English, English for medical professionals, English for waiters, English for tourism, etc.1 Despite the seemingly limited focus, a course of ESP can have a wideranging impact, as is the case with Environmental English.
Unit 17: Petroleum Products Unit17: petroleum product GVHD: Th.s Thái Việt Hưng Lớp : DHHO7 Nhóm : Petroleum products 1.Vocabulary 2.Nitrogen oxides and carbon monoxide 3.Hydrogens sulphide 4.Sour water 5.Sulphuric acid and hydroflouric acid 5.Sulphuric acid and hydroflouric acid Unit17: petroleum product 1.Vocabulary Crude oil Unit17: petroleum product 1.Vocabulary Flue gas Unit17: petroleum product 1.Vocabulary Flue gas Crude oil Pellets Granular beads Dusts Unit17: petroleum product 2.Nitrogen oxides and carbon monoxide CO Unit17: petroleum product NO (200ppm) 2.Nitrogen oxides and carbon monoxide NO O2 NO2 NO2 H2O Unit17: petroleum product HNO3 3.Hydrogen sulphide H2S Unit17: petroleum product 3.Hydrogen sulphide Colourless Flammable gas Heavier than air Soluble in water Rotten egg odour Unit17: petroleum product 3.Hydrogen sulphide Unit17: petroleum product 10 4.Sour water H2S NH3 C6H5OH Unit17: petroleum product 11 5.Sulphuric acid and hydrofluoric Khi tác nhân olefin: thường dùng xúc tác AlCl3; ngồi dùng a.H2SO4, HF, H3PO4 chất mang, aluminosilicat, zeolit Quá trình alkyl hóa q trình đưa nhóm alkyl vào vào phân tử chất hữu vô Unit17: petroleum product 12 6.Solid catalysts Pellets Granular beads Dusts Unit17: petroleum product 13 6.Solid catalysts Pellets Unit17: petroleum product 14 6.Solid catalysts Granular beads Unit17: petroleum product 15 6.Solid catalysts Unit17: petroleum product Dusts 16 LOGO ... HNO3 3. Hydrogen sulphide H2S Unit17: petroleum product 3. Hydrogen sulphide Colourless Flammable gas Heavier than air Soluble in water Rotten egg odour Unit17: petroleum product 3. Hydrogen... product 10 4.Sour water H2S NH3 C6H5OH Unit17: petroleum product 11 5.Sulphuric acid and hydrofluoric Khi tác nhân olefin: thường dùng xúc tác AlCl3; ngồi dùng a.H2SO4, HF, H3PO4 chất mang, aluminosilicat,... Quá trình alkyl hóa q trình đưa nhóm alkyl vào vào phân tử chất hữu vô Unit17: petroleum product 12 6.Solid catalysts Pellets Granular beads Dusts Unit17: petroleum product 13 6.Solid catalysts