ELEMENTARY PRINCIPLES OF CHEM. PROCESS.
4th Edition
ISBN: 9781119249214
Author: FELDER
Publisher: INTER WILE
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 4, Problem 4.76P
4.7'6. Methanol is produced by reacting carbon monoxide and hydrogen. A fresh feed stream containing CO and H2 joins a recycle stream and the combined stream is fed to a reactor. The reactor outlet stream Hows at a rate of 350 mol/min and contains 10.6 wt% H2,64.0 wt% CO. and 25.4 wt5? CTLOH (Notice that those are percentages by mass, not mole percents.) This stream enters a cooler in which most of the methanol is condensed. The liquid methanol condensate is withdrawn as a product, and the gas stream leaving the condenser—which contains CO, H2, and 0.40 mole% uncondensed CH3OH vapor—is the recycle stream that combines with the fresh feed.
- Without doing any calculations, prove that you have enough information to determine (i) the molar flow rates of CO and H2 in the fresh feed, (ii) the production rate of liquid methanol, and (iii) the single-pass and overall conversions of carbon monoxide. Then perform the calculations.
- After several months of operation, the flow rate of liquid methanol leaving the condenser begins to decrease. List at least three possible explanations of this behavior and state how you might check the validity of each one. (What would you measure and what would you expect to find if the explanation is valid?)
Expert Solution & Answer
Learn your wayIncludes step-by-step video
schedule06:11
Students have asked these similar questions
In a chemical production plant, cyclohexane is made by the reaction of benzene and hydrogen. Reaction is as follows:
CHs + H2 → CoH12
The complete process of producing cyclohexane uses a reactor and a separator. Using the process shown below
and assuming 20 % excess hydrogen in the fresh feed, find the ratio of the recycle stream to the fresh feed
stream, the composition of the final product stream, and the composition of the stream leaving the reactor. The
overall conversion of benzene is 92% and the single-pass conversion is 21.5 %. The recycle stream is composed
of 23.9 % benzene and the remaining hydrogen.
Fresh
Feed
REACTOR
SEPARATOR
Product
Recycle
Methanol (CH3OH) is produced in the reaction of carbon dioxide and hydrogen via the reaction and process given below:
CO2+3H2→CH3OH+H2O
The fresh feed to the process contains hydrogen, carbon dioxide, and 0.400 mol% inerts (I). The reactor effluent passes through a condenser that removes essentially all of the methanol and water formed and none of the reactants or inerts. The unreacted reactants and inerts are recycled to the reactor. To avoid buildup of the inerts in the system, a purge stream is withdrawn from the recycle. 100 mol/h of feed to the reactor (not the fresh feed to the process) contains 29.5 mol% CO2, 68.0 mol% H2, and 2.50 mol% inerts. The single-pass conversion of hydrogen is 46.71%. What is the recycle-to-fresh feed ratio?
Butane (C4H10)(C4H10) and dry air are fed to a combustion reactor at a steady rate of 45.9 mol/s45.9 mol/s butane and 2500.0 mol/s2500.0 mol/s dry air. Assume the butane reacts completely to produce CO2CO2 and H2O.H2O. The reactants enter the reactor at 25 ∘C25 ∘C and the products leave the reactor at 1110.4 ∘C.1110.4 ∘C. Calculate the percent excess air.
Using the information below, find the heat interaction.
Species
ΔHf at 298 K(kJ/mol)
CP (kJ/kmol·K)
O2
0
3.5R
N2
0
3.5R
C4H10
-125.5
12R
CO2
-393.5
3.5R
H2O
-241.8
3.5R
Chapter 4 Solutions
ELEMENTARY PRINCIPLES OF CHEM. PROCESS.
Ch. 4 - Prob. 4.1PCh. 4 - Rain is falling on a poorly designed 150-m" flat...Ch. 4 - A liquid-phase chemical reaction A -* B takes...Ch. 4 - A stream consisting of 44.6 mole% benzene and...Ch. 4 - Prob. 4.5PCh. 4 - A liquid mixture of acetone and water contains 35...Ch. 4 - Prob. 4.7PCh. 4 - Prob. 4.8PCh. 4 - Inside a distillation column (see Problem 4.8), a...Ch. 4 - Prob. 4.10P
Ch. 4 - In the production of soybean oil, dried and flaked...Ch. 4 - Prob. 4.12PCh. 4 - A process is carried out in which a mixture...Ch. 4 - Strawberries contain about 15wt% solids and 85wt%...Ch. 4 - Two streams flow into a 500-gallon tank. The first...Ch. 4 - A fuel distributor supplies four liquid fuels,...Ch. 4 - Prob. 4.17PCh. 4 - One thousand kilograms per hour of a mixture...Ch. 4 - L-Serine is an amino acid that often is provided...Ch. 4 - A 100 kmol/h stream that is 97 mole% carbon...Ch. 4 - A pharmaceutical product, P, is made in a batch...Ch. 4 - A liquid mixture containing ethanol (55.0 wt%) and...Ch. 4 - A stream of humid air containing 1.50 mole% H2O(v)...Ch. 4 - A liquid mixture contains 60.0 wt% ethanol (E),...Ch. 4 - Certain vegetables and fruits contain plant...Ch. 4 - Two aqueous sulfuric acid solutions containing...Ch. 4 - A paint mixture containing 25.0% of a pigment and...Ch. 4 - In the commercial production of sugar (sucrose),...Ch. 4 - Prob. 4.29PCh. 4 - A garment to protect the wearer from toxic agents...Ch. 4 - A dilute aqueous solution of H2SO4 (Solution A) is...Ch. 4 - Gas streams containing hydrogen and nitrogen in...Ch. 4 - An artificial kidney is a device that removes...Ch. 4 - The indicator-dilution method is a technique used...Ch. 4 - Prob. 4.35PCh. 4 - Gas absorption or gas scrubbing is a commonly used...Ch. 4 - The SO2 scrubbing tower described in Problem 4.36...Ch. 4 - Prob. 4.38PCh. 4 - The hormone estrogen is produced in the ovaries of...Ch. 4 - A liquid mixture containing 30.0mole% benzene (B),...Ch. 4 - Seawater containing 3.50 wt% salt passes through a...Ch. 4 - Inside the column a liquid stream flows downward...Ch. 4 - Prob. 4.43PCh. 4 - Effluents from metal-finishing plants have the...Ch. 4 - In an absorption tower (or absorber), a gas is...Ch. 4 - In the production of a bean oil, beans containing...Ch. 4 - Boilers are used in most chemical plants to...Ch. 4 - Following is a diagram of the shirt-cleaning...Ch. 4 - A drug (D) is produced in a three-stage extraction...Ch. 4 - Prob. 4.52PCh. 4 - Ammonia is oxidized to nitric oxide in the...Ch. 4 - Prob. 4.54PCh. 4 - A stream containing H2S and inert gases and a...Ch. 4 - 436. The reaction between ethylene and hydrogen...Ch. 4 - Prob. 4.57PCh. 4 - Prob. 4.58PCh. 4 - Titanium dioxide (TiCb) is used extensively as a...Ch. 4 - Prob. 4.60PCh. 4 - Prob. 4.61PCh. 4 - Oxygen consumed by a living organism in aerobic...Ch. 4 - A genetically engineered strain of Escherichia...Ch. 4 - The gas-phase reaction between methanol and acetic...Ch. 4 - Prob. 4.65PCh. 4 - Prob. 4.66PCh. 4 - Methane and oxygen react in the presence of a...Ch. 4 - Ethane is chlorinated in a continuous reactor:...Ch. 4 - Ethanol can be produced commercially by the...Ch. 4 - Prob. 4.70PCh. 4 - Solid calcium fluoride (CaF2) reacts with sulfuric...Ch. 4 - Prob. 4.72PCh. 4 - Chlorobenzene (C^HsCl), an important solvent and...Ch. 4 - A catalytic reactor is used to produce...Ch. 4 - 4.7'6. Methanol is produced by reacting carbon...Ch. 4 - Methane reacts with chlorine to produce methyl...Ch. 4 - Ethylene oxide is produced by the catalytic...Ch. 4 - Methanol is synthesized from carbon monoxide and...Ch. 4 - The fresh feed to an ammonia production process...Ch. 4 - A gas contains 75.0 wt% methane. 10.0% ethane....Ch. 4 - Five liters of liquid n-hexane and 4 liters of...Ch. 4 - Gasoline, which we will represent as having the...Ch. 4 - Prob. 4.87PCh. 4 - Natural gas containing a mixture of methane,...Ch. 4 - Propane is burned completely with excess oxygen....Ch. 4 - Prob. 4.91PCh. 4 - Prob. 4.92PCh. 4 - Liquid methanol is fed to a space heater at a rate...Ch. 4 - Prob. 4.94PCh. 4 - Prob. 4.95PCh. 4 - A fuel oil is analyzed and found to contain 85.0...Ch. 4 - Prob. 4.97PCh. 4 - Prob. 4.98PCh. 4 - Prob. 4.99PCh. 4 - 4.1 (Mt. You have been sent by the Environmental...Ch. 4 - Fuel oils contain primarily organic compounds and...
Additional Science Textbook Solutions
Find more solutions based on key concepts
Falsified Kinetics. The irreversible gas-phase dimerization
is carried out at 8.2 atm in a stirred contained-s...
Elements of Chemical Reaction Engineering (5th Edition) (Prentice Hall International Series in the Physical and Chemical Engineering Sciences)
For the integro-differential equation, d2xdt2+4dxdt+3x=20ftedwithdxdt(0)=x(0)=0. a. Find x(t) b. What is the li...
Process Dynamics and Control, 4e
Represent the resultant of the force system acting on the pipe assembly by a single force R at A and a couple M...
Engineering Mechanics: Statics
A multizone air handler provides air to several zones. One interior zone contains computer equipment with only ...
Heating Ventilating and Air Conditioning: Analysis and Design
What do the Ada and COBOL languages have in common?
Concepts Of Programming Languages
(Complex Class) Write a program that accomplishes each of the following: Create a user-defined class Complex th...
C How to Program (8th Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Similar questions
- A steady-state process to recover crystalline potassium chromate (K,CrOz) from an aqueous solution of this salt is required. Four thousand kilograms per hour of a solution that is one-third K,CrO, by mass is joined by a recycle stream containing 36.4% K2CrO7, and the combined stream is fed into an evaporator. The concentrated stream leaving the evaporator contains 49.4% K,CrO; this stream is fed into a crystallizer in which it is cooled (causing crystals of K,CrO, to come out of solution) and then filtered. The filter cake consists of K,CrO, crystals and a solution that contains 36.4% K,CrO, by mass; the crystals account for 95% of the total mass of the filter cake. The solution that passes through the filter, also 36.4% K,CrO,, is the recycle stream. 1- Draw the flowchart of the system and put all known information. 2- Calculate the rate of evaporation, the rate of production of crystalline K,CrO7, the feed rates that the evaporator and the crystallizer must be designed to handle, and…arrow_forwardSolid calcium (CaF2) reacts with sulfuric acid to form solid calcium sulfate and gaseous hydrogen fluoride. The HF is then dissolved in water to form hydrofluoric acid. A source of calcium fluoride is fluorite ore containing 96 wt% CaF2 and 4% SiO2. In a typical hydrofluoric acid manufacturing process, fluorite ore is reacted with 93 wt% aqueous sulfuric acid, supplied 15% in excess of the stoichiometric amount. Ninety-five percent of the ore dissolves in the acid. Some of the HF formed reacts with the dissolved silica in the reaction 6 HF + SIO2 (aq) – H2SİF6 (9) + 2 H2O (1) The hydrogen fluoride exiting from the reactor is subsequently dissolved in enough water to produce 60 wt% hydrofluoric acid. Calculate the quantity of fluorite ore needed to produce a metric ton of acid. Express your answer into three significant figures.arrow_forward2. In an ethanol production plant, a separator produces a 99% ethanol product from a feedstock stream containing 85% water and 15% ethanol at a rate of 450 Ib/min. The separator has two outlet streams: the ethanol product outlet stream (99% ethanol) and a residual water stream. 30% of the feedstock is bypassed and mixed with the residual water stream leaving the separator. If 60% of the ethanol entering the separator is recovered in the product stream, determine the composition of the residual water stream just after leaving the separator and the composition of the residual stream after mixing with the bypass stream.arrow_forward
- Methane is burned with air in a continuous combustion reactor that is at steady state.The feed to the reactor contains 7.80 mole % CH4, 19.4 mole % O2, and 72.8 mole % N4. The percentage conversion of methane is 90.0%, and the gas leaving the reactor contains 8 mol CO2/mol CO. Carry out a degree of freedom analysis of the process, and calculate the molar composition of the product stream.arrow_forwardHematite is an iron ore with the following composition: Fe2O3 [MW=159.70]. To make steel, carbon [At. Wt. = 12.01] in the form of coke is used to reduce Fe2O3 to iron metal [At. Wt. = 55.85] as shown below: 3 C + 2 Fe2O3 → 3 CO2 + 4 Fe How many grams of carbon are needed to produce 2,500 grams of iron? Relative to the problem the processing of 798.5 g of hematite ore produced 508.2 g of iron metal. Determine the percent yield of pure iron for this batch?arrow_forward9. Ethane is burned with air in a continuous steady-state combustion reactor to yield a mixture of carbon monoxide, carbon dioxide, and water. The feed to the reactor contains 10 mol/min C2H6 and 200 mol/min air. The percentage conversion of ethane is 80%, and the gas leaving the reactor contains 8 mol CO2 per mol of CO. Determine the molar flow rate of the ethane gas in the product stream. (2 mol/min)arrow_forward
- .edu bryuitra/courses roee_re Question Completion Status: The following process describes the complete combustion reaction of Toluene fuel C7HB (SG 0.866) with air. Liquid fuel (n1) enters the combustion chamber at 200mL/min, where it evaporated into a stream of air (n2) 15% in excess. Complete combustion reaction in which only fraction of the fuel is burned. The combustion products go to a condenser, where the unreacted fuel and water are liquified. The mass flowrate of the fuel in this steam (ma) is 50. The uncondensed gas leaves the condenser at 60 C and 0.5 atm gauge pressure. Calculate the fractional conversion of the fuel Calculate the SCMH of the air entering the combustion chamber Calculate the volumetric flow rate of the gas leaving the condenser (m³/min). a. b. C. ri4 CO2 n3 Fuel ris N2 Fuel ri1 ni4 CO2 nig O2 Combustion nig N2 Condenser air riz Chamber ng O2 ni, H,0 n3 Fuel niz H,0arrow_forward6- Floor beams of a transport airplane have been designed using an aluminum alloy containing 4.5 wt% Cu and 1.5 wt% Mg for a total weight of 95000 N. A customer has ordered the airplane but requested that its total weight be reduced by 10 percent for fuel saving purposes. An engineer in the design and analysis department has suggested that the weight saving objective can be accomplished by replacing the current aluminum alloy of the floor beams with another one containing 3 wt% Li and 1 wt% Cu. Is this possible? Answer the question by first determining the weight saving that will take place using the Al-Li alloy. Assume weighted averages of density and use the following densities for the mentioned materials: Al = 2.70 g/cm³ Cu = 8.92 g/cm³ Mg = 1.74 g/cm³ Li = 0.53 g/cm³arrow_forwardethylene oxide is produced by oxidation of ethylene 100 kmol of ethylene and 100 kmol of o2 are charged to a reactor.the % conversion of ethylene is 85 and%yield of ethylene oxide is 94.12 .calculate the composition of product stream leaving the reactor .the reactions takes place arearrow_forward
- Methane (CH4) is reacted with oxygen (02) over a catalyst to produce acetlyene (C2H2) in the following reaction: 6 CHąlg) + O2lg) –→2 C2H2(g) + 2 CO(g) + 10 H2(g) If a feed containing 150 mol CHg and 50 mol O, is fed into a reactor and the conversion of the limiting reactant is 92 %, determine the concentration of CH, in the product flue gas. Give your answer as a mole percent rounded off to one decimal place.arrow_forwardThe oxidation of ethylene to produce ethylene oxide proceeds according to the equation2C 2H 4 +O 2 ! 2C 2H 4OThe feed to a reactor contains 100 kmol C 2H 4 and 100 kmol O 2. If the reaction proceeds to completion, how much of the excess reactant will be left; how much C 2H 4O will be formed; and what is the extent of reaction?arrow_forwardTo prepare a delicious banana milk on an industrial scale, there is an experimental process that consists of seven unit operations. A stream of banana (whose components are fruit, peel, and moisture) is fed to a peeler, where 99.9% of the peel is removed. This stream should become pulp, so it is mixed with an additive Q to avoid pulp oxidation. This mixture is then sent to an extruder press wherein a stream of a 50:50 mixture of additives Q and R is added. The resulting flow of 30 kg/h has a composition of 2% additive R and 5% additive Q. This flow is then fed to an agitated mixer. To the same mixer is fed a dairy stream of 250 kg/h that contains 70% milk (the rest is water) and a sweet aqueous stream that contains 30% sugar. For each 25 kg/h of dairy flow, 2 kg/h of the sweet flow is fed. The stream that leaves the agitated mixer has 5% fruit and 0.005% peel and enters a series of two thermal processes in which each operation allows 5% of the water and 2% of the milk to evaporate. The…arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage Learning
ChemistryChemistryISBN:9781259911156Author:Raymond Chang Dr., Jason Overby ProfessorPublisher:McGraw-Hill Education
Principles of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning
Organic ChemistryChemistryISBN:9780078021558Author:Janice Gorzynski Smith Dr.Publisher:McGraw-Hill Education
Chemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage Learning
Elementary Principles of Chemical Processes, Bind...ChemistryISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEY
Chemistry
Chemistry
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Cengage Learning
Chemistry
Chemistry
ISBN:9781259911156
Author:Raymond Chang Dr., Jason Overby Professor
Publisher:McGraw-Hill Education
Principles of Instrumental Analysis
Chemistry
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Cengage Learning
Organic Chemistry
Chemistry
ISBN:9780078021558
Author:Janice Gorzynski Smith Dr.
Publisher:McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:Cengage Learning
Elementary Principles of Chemical Processes, Bind...
Chemistry
ISBN:9781118431221
Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:WILEY
Mod-01 Lec-23 Degrees of freedom analysis; Author: nptelhrd;https://www.youtube.com/watch?v=c4h85JjrkzQ;License: Standard YouTube License, CC-BY
Introduction to Degrees of Freedom; Author: LearnChemE;https://www.youtube.com/watch?v=tW1ft4y5fQY;License: Standard Youtube License