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CHEMICAL ENGINEERING PAKISTAN

In this blog Chemical Engineers from all over the world has provided a complete description of equipment's as well as designing step which follows to design the process equipment easily.Engr Ammad Masood has completed his Chemical Engineering in 2014 from Pakistan.During study,he was design many process equipment such as Heat Exchangers,Separators,Distillation Column,Cooling Tower.The area of interest is Heat Transfer and Separation Process.

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VAPORIZER IN PROCESS INDUSTRY

Vaporizers are heat exchangers which are specially designed to supply latent heat of vaporization to the fluid. In some cases it can also preheat the fluid then this section of vaporizers will be called upon preheating zone and the other section in which latent heat is supplied; is known as vaporization zone but he whole assembly will be called upon a vaporizer. Vaporizers are called upon to fulfill the multitude of latent-heat services which are not a part of evaporative or distillation process. There are two principal types of tubular vaporizing equipment used in industry: Boilers and Vaporizing Exchangers . Boilers are directly fired tubular apparatus, which primarily convert fuel energy into latent heat of vaporization. Vaporizing Exchangers are unfired and convert latent or sensible heat of one fluid into the latent heat of vaporization of another. If a vaporizing exchanger is used for the evaporation of water or an aqueous solution, it is now fairly conventional to call...

DISTILLATION COLUMN IN CHEMICAL INDUSTRY

In process industries, it is often desired to separate the components of a liquid mixture. The easiest way is to carry out this separation is by distillation. This unit operation makes use of the difference in the boiling point or the relative volatilities of the components. Distillation is considered to be the preferred separation technique if the relative volatility difference between the two key components (that are required to be separated from each other) is greater than 1.2. Distillation is carried out by the use of ESA (energy as separating agent). The addition of heat to the system raises the temperature of the system and causes the more volatile component to go to the vapor state preferably as compared to the less volatile component. On the removal of heat, the condensation occurs and the less volatile component is preferentially condensed. As the addition and subsequent removal of heat continues, the vapor phase become rich in the more volatile component and the liquid ph...

PRODUCTION OF SULPHURIC ACID BY CONATACT PROCESS

Introduction of Oleum The Cyanamid oleum plant specially designed for the manufacturing of H2SO4 of 98.5% to 99.55% strength and H 2 S 2 O 7 which is 100% sulphuric acid containing 20% of dissolved SO3 which is equivalent to 105% concentration. R aw material The raw materials used are as under: SULPHUR………………………………4 S/TONS per day H2SO4……………………….10 M/TONS for initial start up D-MIN water feed…………… 3000 g/day approx Catalyst……………………….20 drums to fill convertor Plant capacity The plant was designed to produce 10 m/tons of 100% H 2 SO 4 per 24 hours as 99% H 2 SO 4 . Production procedure The oleum plant consists of a store for sulfur with means of wighing and trolly support slufting from store to plant. A melting sulphur pit with fetter a pump to pressurize the molten sulphur and feed to the the atomizing burner a furnace for combustion. The air for combustion is supplied by a blower. It is dried to avoid the subsequent condensation of moisture in a s...