Chemical Engineering Knowledge

Some important chemical compounds formula:- 1. आक्सीजन—O₂ 2. नाइट्रोजन—N₂ 3. हाइड्रोजन—H₂ 4. कार्बन डाइऑक्साइड—CO₂ 5. कार्बन मोनोआक्साइड—CO 6. सल्फर डाइऑक्साइड—SO₂ 7. नाइट्रोजन डाइऑक्साइड—NO₂ 8. नाइट्रोजन मोनोऑक्साइड (नाइट्रिक ऑक्साइड) — NO 9. डाईनाइट्रोजन ऑक्साइड (नाइट्रस ऑक्साइड) — N₂O 10. क्लोरीन — Cl₂ 11. हाइड्रोजन क्लोराइड—HCl 12. अमोनिया — NH₃ अम्ल 13. हाइड्रोक्लोरिक एसिड — HCl 14. सल्फ्यूरिक एसिड — H₂SO₄ 15. नाइट्रिक एसिड — HNO₃ 16. फॉस्फोरिक एसिड — H₃PO₄ 17. कार्बोनिक एसिड — H₂CO₃ क्षार 18. सोडियम हाइड्राक्साइड—NaOH 19. पोटेशियम हाइड्राक्साइड—KOH 20. कैल्शियम हाइड्राक्साइड—Ca(OH)₂ लवण 21. सोडियम क्लोराइड—NaCl 22. कार्बोनेट सोडियम—Na₂CO₃ 23. कैल्शियम कार्बोनेट — CaCO₃ 24. कैल्शियम सल्फेट — CaSO₄ 25. अमोनियम सल्फेट — (NH₄)₂SO₄ 26. नाइट्रेट पोटेशियम—KNO₃ आम रसायनों के व्यावसायिक एवं रासायनिक नाम व्यावसायिक नाम — IAPUC नाम — अणु सूत्र 27. चाक — कैल्सियम कार्बोनेट — CaCO₃ 28. अंगूर का सत — ग्लूकोज — C6H₁₂O6 एल्कोहल — एथिल  29. एल्कोहल — C₂H5OH 30. कास्टिक पोटाश —  पोटेशियम ...

  Rotameter Working and Types Rotameter is a device which is used in chemical and related industries in order to measure the flow rate or average velocity of the flowing fluid. Rotameter is a simple equipment which consists of a tapered tube and a float. The float is placed inside the tube and usually nets are placed at both the ends of the tube. This arrangement can be connected with a pipe line with flanged connections. Rotameters are always installed vertically in the pipelines. A scale is marked on the tube to read the values of flow rate directly. Rotameter  Working When the fluid is not flowing then the float rests at the bottom of the rotameter. The fluid is made to pass through the rotameter such that the direction of flow of the fluid is parallel to the axis of the rotameter. The flow of fluid through the rotameter causes the float to move along with the fluid. There are two primary forces involved, an upward drag force due to the motion of the fluid in upward directi...

 Some types of Abbreviations uses in company's :- R - Reactor DV - Distill Vessel EJ - Ejector T - Tank RV - Rotavapour  DVS / DVP = Dry vacuum System / Pump CF - Centrifuge  NF - Neauch Filter PNF - Pressure Neauch Filter SF - Sparkle Filter MF - Micron Filter ANFD - Agitated Neauch Filter Dryer RO - Reverse Osmosis MEOH - Methanol

Aspect of work permit .         A work permit has following scopes. 1. Work execution department who is seeking a job must be identified in work permit first. 2. Type of work permit 3. Equipment used 4. Identification work permit issuer, work executor, Permit approve person, Area owner. Work permit issuer may be Engineer, Shift supervisor, Plant in charge, Senior technician, Assistant engineer, etc Work executor is from service department like Diploma or Engineer in Mechanical, Electrical, Instrument, safety, IT, Third party person. Permit approving person must be Engineer or equal qualified person with higher experience which holds good knowledge and familiar with all types of risks and scopes of accidents. Area owner is a person who is operating and working on it. He may be Operator, Technician, Officer, Junior engineer etc. 5. Permit data must be maintained Types of work permit.         Cold/General work permit Hot work permit Height ...

Azeotropic Distillation process:- Distillation is a process in which a liquid mixture of volatile components is separated by imparting energy to it in consideration with the boiling points of the components so that selective vaporization takes place. Whenever vapours of a mixture are produced the vapours are relatively richer in more volatile components compared to the liquid mixture. It means the composition of the more volatile components in the vapour phase have higher values than the more volatile components present in the liquid phase. At times, for some selection of components to form the liquid mixture, while boiling the liquid mixture a point may reach when we see that the value of composition of each component in the vapour phase will be equal to the value of the composition of the each same component in the liquid phase. When such mixtures will be boiled further they will not produce any change in the composition of the components in vapour or liquid phase, meaning the compos...

Steam Ejectors Working :- Ejectors work with an actuating gas which is usually steam. The purpose of the actuating gas is to carry the gas to be evacuated from a container or equipment with it. The evacuation is done for the purpose of creating vacuum conditions. The gas to be evacuate d and carried along with steam is called the secondary gas. The high pressure steam first passes through the steam chamber and enters the suction chamber through nozzle. The nozzle converts the high pressure steam into high velocity stream. The speed of the steam increases quite a lot when it passes through nozzle. During the working process the actuating gas is expanded from its initial pressure to a pressure equal to that of the secondary fluid. Due to the high velocity of steam through the nozzle, a low pressure region is created in the suction chamber. This causes the secondary gas to move out of the container or equipment and enter into the suction chamber through suction inlet. Throughout the path ...