Question: A tower, packed with Montz B1-200 metal structured packing, is to be designed to absorb SO2 from air by scrubbing with water. The entering gas,

A tower, packed with Montz B1-200 metal structured packing, is to be designed to absorb SO2 from air by scrubbing with water. The entering gas, at an SO2-free flow rate of 6.90 lbmollh-ft2 of bed cross section, contains 80 mol% air and 20 mol% SO2. Water enters at a flow rate of 364 lbmol/h-ft2 of bed cross section. The exiting gas is to contain only 0.5 mol% SO2. Assume that neither air nor water will be transferred between phases and that the tower operates at 2 atm and 30°C. Equilibrium data in mole fractions for SO2 solubility in water at 30°C and 2 atm (Perry's Chemical Engineers Handbook, 4th ed., Table 14.31, p. 14-6) have been fitted by a least-squares method to the equation

4.724 x 10°x +3.001 × 10'x* .4 .2 y =12.697x +3148.0x? - 6.524 x 10%x5

(a) Derive the following molar material balance operating line for SO2 mole fractions:

4.724 x 10x +3.001 10'x* .4 .2 y =12.697x +3148.0x? - 6.524

(b) Write a computer program or use a spreadsheet program to calculate the number of required transfer units based on the overall gas-phaseresistance.

4.724 x 10x +3.001 10'x* .4 .2 y =12.697x +3148.0x? - 6.524 x 10%x5

Step by Step Solution

★★★★★

3.39 Rating (165 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

a A material balance for the solute SO 2 from the top of the column to an intermediate point gives S... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

37-E-C-E-S-P (244).docx

120 KBs Word File

Students Have Also Explored These Related Chemical Engineering Questions!

A pipe in air at 20oC is to be designed to produce two successive harmonics at 240 Hz and 280 Hz. How long must the pipe be, and is it open or closed?

A shell-and-tube counterflow heat exchanger is to be designed for heating an oil from 80 to 180?F. The heat exchanger has two tube passes and one shell pass. The oil is to pass through 1 1/2-in....

An air-to-water compact heat exchanger is to be designed to serve as an intercooler for a 5,000 hp gas turbine plant. The exchanger is to meet the following heat transfer and pressure drop...

A tower packed with metal Montz B2-300 structured packing is to be designed to absorb $\mathrm{SO}_{2}$ from air by scrubbing with water. The entering gas, at an $\mathrm{SO}_{2}$-free flow rate...

Repeat Problem 5.22 using $50-\mathrm{mm}$ ceramic Pall rings as packing material. Compare your results to those of Problem 5.22. Data From Problem 5.22:- A tower packed with metal Montz B2-300...

Please solve question 22.5-2) 22.5-2. Analytical Method for Number of Trays in Absorption. Use the analytical equations in Section 22.4 for countercurrent tray contact to calculate the number of...

A packed tower is to be designed to absorb SO2 from air by scrubbing the gas with water. The entering gas contains 8% SO2 by volume and the leaving gas is to contain 0.5% SO2 by volume. The entering...

N H 3 - air mixture containing 5 % N H 3 is scrubbed with water to remove N H 3 , 5 0 0 0 k g h r of gas mixture is to be processed with 2 , 0 0 , 0 0 0 k g h r of water to reduce N H 3 in the exit...

Repeat Example 4.2 but using Montz metal B1-200 structured packing (very similar to the one shown in Figure 4.3). For this packing, $a=200 \mathrm{~m}^{-1}, \varepsilon=0.979$, $C_{S, T}=3.116$, and...

The production of CO2 from man-made sources is becoming a global concern. CO2 concentrations in the atmosphere have risen from 280 parts per million (ppm) in pre-industrial times to 380 ppm in 2008...

Accounting Briefly discuss the tax treatment in each of the following cases, for the employer making the particular superannuation contributions, citing relevant legislation to support your answer....

According to Sun Tzu, what two key understandings must you achieve to be successful in battle?

1. A X Determine the truth values of the following symbolized statements. Let A, B, and C be true and X, Y, and Z be false. Circle your answer.

Calculate the pH after 0.15 mol of NaOH is added to 1.00 L of the solution that is 0.78 M HF and 1.07 M KF. Calculate the pH after 0.10 mol of HCI is added to 1.00 L of the solution that is 0.78 M HF...

(a) Determine if the upper bound theorem identifies 5 as an upper bound for the real zeros of f (x). (b) Determine if the lower bound theorem identifies -6 as a lower bound for the real zeros of f...

The temperature at a point (x, y) is T(x, y), measured in degrees Celsius. A bug crawls so that its position after t seconds is given by x = V1 + t, y = 8 + where x and y are measured in centimeters....

The survival of a certain cell line when exposed to X rays is found experimentally to be described by the equation SF=1-(1-e -0.9D ) 2 , where D is in Gy. Survival of the same cell line exposed to...

Logical Logistics Inc. (Logical Logistics or the Company) provides transportation and logistics services to customers throughout a network of offices in North America, South America, and Asia. The...

Use the Figure It Out! feature in this chapter to calculate your own life insurance needs. (LO10.1)

Design a process for the separation of $1,000 \mathrm{kgmol} / \mathrm{hr}$ of a mixture composed of $50 \mathrm{~mol} \%$ acetone (A) and $50 \mathrm{~mol} \%$ heptane (C) to highly pure...

For the pressure-swing dehydration of THF, determine the internal flow rates when the high-pressure column is at 5 bar.

For the manufacture of di-tertiary-butyl peroxide in Example 9.7 synthesize an alternative process and show the flow rate and composition of each stream. Data From Example 9.7:- This example involves...

paid by a firm in which Hulett owns 8 5 percent of the shares. Use the corporate tax rates shown in the popup window, _ , to Comcute the corporation's tax liability. What are the firm's average and...

Suppose today a mutual fund contains 2,000 shares of JPMorgan Chase, currently trading at $84.75, 1,000 shares of Walmart, currently trading at $83.10, and 2,500 shares of Pfizer, currently trading...

The Whistling Straits Corporation needs to raise $45 million to finance its expansion into new markets. The company will sell new shares of equity via a general cash offering to raise the needed...