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What is open vessel and closed vessel in chemical reaction engineering?
Wiki User
∙ 12y ago
open -open vessel means dispersion is same at inlet & outlet.there is bulk mixing.
Eg: Tubular reactors.
Wiki User
∙ 12y ago
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What is the difference between vessel and drum in chemical engineering or petroleum industry?
I think a vessel is containing a fluid under high pressure whereas a drum contain a fluid with no or low pressure.
What is meant by straight run gasoline?
From the Crude Splitter Column top tray, gasoline in vapor form is condensed in the condenser overhead vessel. The gasoline product from the vessel is sent to the gasoline stripper column. The bottom product of this gasoline stripper column is termed SR Gasoline.
Why the steam inlet at the top and coolant circulation from bottom of the reactor why we can't use the glass lined reactors for alkali reactions?
In the PWR the top houses the steam outlet, not inlet, and coolant flow is applied to the pressure vessel inlet connections. A glass lined vessel would simply not be durable enough for a 40 or hopefully 60 year life. If it started cracking or peeling off, how would it be repaired?
Where does the crude oil go after it has been through the pipes from the offshore oil rig?
It can go via pipeline to an onshore facility for refining or storage, it can go to and FPSO (A floating production, storage and offloading vessel anchored in the vicinity of the oil rigs) where it could be pumped into oil tanker ships, or to a man made island where it is stored and pumped into oil tanker ships. The oil eventually ends up in refineries where fuels, lubricants, plastics, chemical, rubber, and other bi-products are then manufactured.
How are detergent soaps prepared in industries?
There are two distinct types. Soaps are made by reacting long chain fatty acids, often from natural products like animal fats or plant oils, with a strong alkali, usually sodium hydroxide. The reaction is in a 1:1 molar ratio. A typical process would have a stirred reaction vessel containing sodium hydroxide solution and the fatty acid is added slowly at a controlled temperature until the correct pH is reached. The soap is then isolated from the reaction mixture. The phrase detergent is often used for a product made by reacting a tertiary amine or tertiary phosphine with an alkyl halide. These quaternary ammonium salts (or quaternary phosphonium salts) are isolated as concentrated solutions in water. Both soaps and detergents have similar properties in that they act as emulsifiers, binding grease and oil to water in emulsions. The main difference is in pH, soaps are alkaline whereas "quats" are acidic. In industry and commercially, the term detergent is often used to include both soaps and "Quats".
What is a chemical reaction that's absorbs energy called?
An Endothermic reaction. If you touch the reaction vessel it will feel cool/cold, as it is taking in heat energy. By contract an Exothermic reaction is one that gives out heat. If you touch the reaction vessel it will feel warm/hot as it is liberating heat energy.
What are the signs of an exothermic reaction?
The reaction vessel will warm/hot to the touch. 'Exothermic' ; het coming out. Conversely, if the reaction vessel feels cool/cold to the touch it is Endothermic ; taking in heat from its surroundings.
What is the difference between vessel and drum in chemical engineering or petroleum industry?
I think a vessel is containing a fluid under high pressure whereas a drum contain a fluid with no or low pressure.
What is cordy precipitates?
These are strings of an insoluble compound falling out of solution after a chemical reaction. The strings develop because the precipitate dissociates from the solution faster than the precipitate falls to the bottom of the reaction vessel.
By decreasing this you can speed up a chemical reaction?
Decrease the activation energy to speed up a chemical reaction.
How do you determine the change in temperature and final temperature of an endothermic reaction?
The amount of heat generated or absorbed in a chemical reaction can be studied using a calorimeter. our chemical reaction) is placed in a well-insulated vessel surrounded by water (surroundings). A thermometer is used to measure the heat transferred to or from the system to the surroundings. The heat that the chemical reaction puts out, or takes up, (qrxn) is simply the moles of the limiting reagent, nlimiting reagent times ΔHrxn. qrxn = nlimiting reagent·ΔH
What is a high pressure reactor?
High pressure reactor is a chemical reaction vessel which can conduct a reaction under pressure. The pressure can be caused by the reaction itself or created by an external source. Reactor can be used for sample modification with hydrogen, carbon dioxide, acetylene etc.
What is a blind ended vessel?
A blind-ended vessel is a vessel that is closed at one end, or has a 'dead end'. They can be found in the lymphatic system, for example.
What would happen if the excess acetic anhydride is not removed in the reaction vessel?
If the excess acetic anhydride is not removed in the reaction vessel an unwanted reaction will occur. The acetic anhydride will react causing esterification.
What happens when charcoal is burned in a closed vessel?
it turned URL
Why does a gas fills completely in a vessel?
Because gas molecules easily diffuse and fill completely a closed vessel.
Will humidity increase with air pressure increase in a closed vessel?
The relative humidity in a closed vessel will not change due to pressure. Assuming water is the fluid, the relative humidity will stabilize to 100%.
