Author Archive
What is lubricant?
The lubricant is a substance which is introduced between two moving or sliding surfaces to improve efficiency, reduce wear and friction between them, dissolve or remove foreign particles and distribute heat generated. During sexual arousal, a woman’s
What are solid lubricants?
The solid lubricant is solid materials that separate and reduce friction between two moving surfaces without a liquid a media and decrease wear and tear. E.g.: talc, graphite, molybdenum disulfide, Teflon, boron nitride etc. the most commonly
Methods of manufacturing synthetic gasoline
Synthetic gasoline can be manufactured by- Direct method (Bergius process) and indirect method (Fischer tropsch process) Bergius process The coal is finely ground and dried in a stream of hot gas. The dry product is mixed with
Discuss fischer-tropsch process for preparing gasoline
Fischer-tropsch process is carried out to prepare gasoline from non-petroleum origin. The arrangement for charring out this process as Water gas and H2 is sent through Fe2O2 tower where H2S present as an impurity is removed. It
What is hydrocatalytical cracking
Hydrocatalytical cracking The process in which higher hydrocarbon (heavy oil) having higher boiling point is converted into lower hydrocarbon (heavy oil ) having higher boiling point is converted into lower hydrocarbon (petrol)having lower boiling point in the
Distinguish between fluid bed catalytic cracking and catalytic cracking
The differences between fluid bed catalytic cracking fixed bed catalytic cracking are as Fluid bed catalytic cracking Fixed bed catalytic cracking It is comparatively modern technique. It is comparatively an older technique. It is continuous process. It
Compare gasoline and diesel
The gasoline and diesel can be compared as follows: Properties Gasoline (petrol ) Diesel Knocking characteristics In a petrol engine, the combustion rate of air-petrol mixture initiated by sparking of spark plug becomes so fast that the
Advantages of catalytic cracking over thermal cracking
The advantages of catalytic cracking over thermal cracking are as follows Catalytic cracking takes place at lower temperature and pressure (3000C -4000C and 1-5kg/cm2 ) as compared to that of thermal cracking (5000C-6000C and kg/cm2) Catalytic cracking
Types of cracking
The various types of cracking can be classified as: Thermal cracking Catalytic cracking Thermal Cracking Is the process where higher hydrocarbons are converted to low boiling hydrocarbons under the action of heat action of and pressure. Thermal
Catalytic cracking
Catalytic cracking is defined as a process of converting where higher molecular weight and boiling hydrocarbons to lower molecular weight and boiling hydrocarbons in presence of a catalyst Heavy oil (450-550 0C) gasoline Catalytic cracking was first