How does a quench tower work?

GEA quench tower design consists of an open vessel in which liquid is sprayed to contact the gas. The gas enters the bottom of the tower through a side nozzle and flows upwards, counter-current to liquid that has been sprayed from the top of the tower.

What is quench water in refinery?

Quench Water Coolers in Ethane Cracking Plant (Olefin Plant) The process gas is sent to a quench water tower where it is being cooled by direct contact with cooling water. This cooling water is further cooled by cooling tower water in series of Barriquand Platular® easy-to-clean welded plate heat exchangers.

What is the purpose of a quench tower?

The primary purpose of the quench tower is to cool the hot gas (500–600°F, 260-315°C) from the hydrogenation reactor to around 100°F (38°C) by direct contact with cooling water. In addition to lowering the temperature, generally about 85% of the water content is removed as well.

Why a quench tower is required in a cracking plant?

Introduction of Quench Towers The reactor effluent from the process requires cooling for further fractionation and therefore the temperature is reduced or quenched. Typically quench towers utilize one or more heat transfer sections or pump rounds to remove heat from the column.

What is SWS refinery?

Sour water stripping (SWS) is one of the first stages in the wastewater treatment process in many industrial operations, and especially in refineries. Water streams from throughout a refinery are typically sent to the stripper, which is designed to remove both H2S and ammonia from the water.

What does quench your thirst mean?

: to cause oneself/someone to stop feeling thirsty He quenched his thirst by drinking a bottle of water.

What is quenching in fuel systems?

Quenching, in the context of pollution scrubbers, refers to the cooling of hot exhaust gas by water sprays before it enters the scrubber proper. Hot gases (those above ambient temperature) are often cooled to near the saturation level.

What is a quenching tower?

A Quench Tower or Condenser is often the first step in conditioning a high temperature, polluted air stream so that particulate, acid gasses, metals, and other emissions can be adequately removed.

How is water cooled in a cooling tower?

As the water flows through the cooling tower, it is exposed to air, which is being pulled through the tower by the electric motor-driven fan. When the water and air meet, a small amount of water is evaporated, creating a cooling action.

How much H2S is in natural gas?

Natural gas can contain up to 28 percent hydrogen sulfide gas, consequently, it may be an air pollutant near petroleum refineries and in oil and gas extraction areas.

Is Sour water flammable?

This material is generally not flammable; however, it may contain hydrogen sulfide which is extremely flammable, or crude oil, condensate or natural gas, all of which are flammable.

What is the best drink to quench your thirst?

Water
Water is best to quench your thirst. Skip the sugary drinks, and go easy on the milk and juice. There are many options for what to drink, but with- out a doubt, water is the best choice: It’s calorie- free, and it’s as easy to find as the nearest tap.

How does a quench tower in an ethylene plant work?

In an ethylene plant the mixture is partially cooled by heat exchanger and then in a quench tower. The quench tower has heat transfer sections that remove the heat at different levels. ascending vapor that enters the tower bottoms.

How is heat removed from a quench tower?

The quench tower has heat transfer sections that remove the heat at different levels. The heat is removed in the heat transfer section by re-circulating liquid against the ascending vapor that enters the tower bottoms.

What causes fouling in a quench water tower?

In 2002 Gondolfe and Mueller noted that poor column design is th e main reason for quench oil tower fouling. 1. Solid Fouling can be seen in quench water towers by naphthalene. Naphthalene is an aromatic compound with a chemical formula of C 10 H 8 and a molecular weight of 128.2. 1.02.

How is the fouling of quench oil reduced?

Typically quench oil fouling is lowered by the to the following process conditions. 1. There is 30% steam in the quench oil column therefore fouling will be reduced by this inert. 2. There is a high percentage of hydrogen which will reduce the fouling