SUBJECT MASS TRANSFER AND EQUIPMENTS REPORT ABSORPTION

HO CHI MINH CITY UNIVERSITY OF TECHNOLOGY

AND EDUCATION

FACULTY OF CHEMICAL AND FOOD TECHNOLOGY

SUBJECT: MASS TRANSFER AND EQUIPMENTS

REPORT

ABSORPTION

Instructor: M.Eng. Phạm Văn Hưng

Student’s name:

Nguyễn Thị Quỳnh Trân

Trần Tiểu Phụng

Nguyễn Trần Hoàng Anh

Nguyễn Hoàng Hồng Thắm

HO CHI MINH CITY, MAY 2022

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Content

I. Definition....................................................................................................................................... 3

II. Process........................................................................................................................................4

III. Equipment................................................................................................................................. 6

3.1. Packed column............................................................................................................6

3.2. Plate columns............................................................................................................11

3.3. Packed vs plate tower comparison...............................................................12

IV. Calculation.............................................................................................................................14

4.1. Design and performance equations - Packed columns....................14

4.1.1 Liquid Rate.......................................................................................................14

4.1.2. The column diameter................................................................................18

4.1.3. The column height......................................................................................22

4.1.4. Pressure drop...............................................................................................25

4.2. Design and performance equations - Plate columns..........................25

REFERENCES..........................................................................................................................32

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I. Definition [1]

Many gaseous materials are used in the chemical industry, as are

many products obtained in gaseous form. As a result, if we want to keep

processing gas mixtures, we must separate them into their constituents.

There are 3 methods to separate the gas mixture

Suction separation

method Physicochemical

method Chemical method

This report focuses solely on the suction separation method.

The suction separation method is understood as the reception of one

substance into another through their phase separation surface. We call it

absorption if we use a liquid to absorb it, and adsorption if we use a porous solid.

Figure 1. The difference of adsoption and absoption

The process of absorption conventionally refers to the intimate contacting

of a mixture of gases with a liquid so that part of one or more of the constituents

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