Dear All.......!!!
Good Evening, Hope you all are good, Thanks for the support that i'm receiving for maintaining this blog, wish this'll continue all time.
Recently i've received a common query from Mechie (Mech. Engineer / Project Engineer) and one of my colleague,
And i think some of us also will have the same, to address their query today i'm posting this here, this may be a basic post but i've taken some time to think over it and to make it best possible solution.
But before going to that there is some basic stuff, which need to be accepted by all those who are reading this post, or else there may be slightly misunderstanding erupted in-between.
What is a reactor ?
Reactor is a vessel having an agitator and other accessories which are intended for measuring and maintaining it in safe condition.
What are the operations that can be carried in a reactor ?
The main operation is reaction, apart from that it can be used for extraction, concentration, crystallization and many more.
What are the sub components of a reactor ?
The notable sub components of a reactor are condenser, collection receiver, safety valve, rupture disc, etc.
What is the main duty of a condenser ?
The main duty of a condenser is to condense the vapour, to deliver exactly the main purpose is to remove the latent heat of vapour. Apart from that the condenser will perform some unofficial duty by removing some of the sensible heat from the condensed liquid.
That's it....!!! Now lets begin the calculation.
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Lets consider a case where a 10 KL SS reactor is available and we need to select a condenser for that reactor.
Step - 1: Select a solvent having high volatility.
Step - 2: Calculate the maximum boil-up of the selected solvent.
Step - 3: Calculate the Condenser Capacity for that boil-up.
That's it ...!! your job is done.
Now, lets begin,
Step - 1: Solvent selection based on boiling point,
Below is the list of solvent and their boiling points [from my database],
Solvent Name | B.P. (°C) | Solvent Name | B.P. (°C) | |
(N N) Dimethy Amino ethyl Acrylate | 95 | Di Cyclo Hexyl Amine | 255 | |
(R)-Glycidyl Butyrate | 90 | Di Ethyl Oxalate | 186 | |
(S)-3-Chloro 1-Propanethiol | 144 | Di Isopropyl Adipate | 125 | |
1-(Trimethylsilyl)-1-Propyne | 95 | Di Isopropyl Ether | 67 | |
1,1,3,3-Tetramethoxy Propane | 183 | Di N-butyl Sebacate (Diester) | 349 | |
1,1,3,3-Tetramethyl Guanidine | 158 | DI Water (Acidified with HCl) | 100 | |
1,1-Dichloro-3,3-Dimethyl Butane | 146 | Dibenzyl Phosphite | 110 | |
1,2-Dibromoethane | 131 | Dibutyl Phthalate | 340 | |
1,2-Dimethoxyethane | 82 | Dicyclopentadiene | 170 | |
1,2-Dibromo Methane | 96 | Diethanolamine | 268 | |
1,3 - Difluoro Benzene | 82 | Diethyl Carbonate | 126 | |
1,4-Dimethyl Piperazine | 131 | Diethyl Ether | 34.6 | |
1,4-Dibromobutane (DBB) | 63 | Diethyl Ethoxymethylene Malonate | 278 | |
1,4-Dichloro Butane | 161 | Diethyl Malonate | 199 | |
1,4-dioxane | 101.3 | Diethyl Phthalate | 296 | |
1,6-Dibromohexane | 243 | Diethyl Sulphate | 208 | |
1,8-Diazabicyclo(5.4.0)undec-7-ene | 80 | Diethylamine | 55 | |
10-Undecenoyl Chloride | 120 | Diethylene Glycol | 244 | |
1-Acetopapthone | 302 | Diethyl-L-Tartarate | 280 | |
1-Aminopiperidine | 146 | Diisopropyl Amine | 84 | |
1-Bromo 2-Fluoro Benzene | 78 | Dimethoxyethane | 64.5 | |
1-Bromo 4-Fluoro Benzene | 150 | Dimethyl Carbonate | 90 | |
1-Bromo-2,4,6-Trifluorobenzene | 140.5 | Dimethyl Formamide | 153 | |
1-Bromo-2-Fluoroethane | 71 | Dimethyl Sulfoxide (DMSO) | 189 | |
1-Bromo-3,4,5-Trifluorobenzene | 47 | Dimethylsulfide | 37 | |
1-Bromo-3-Chloro Propane | 144 | Diphenyl Phosphine | 280 | |
1-Bromo-4-chloro Butane | 80 | Dowtherm A | 257 | |
1-Bromopentane | 130 | Ethane Sulfonyl Chloride | 177 | |
1-Chloroethyl Chloroformate | 118 | Ethanol | 78.3 | |
1-Dodecanethiol | 143 | Ethyl Acetate | 77 | |
1-Fluoro Naphthalene | 215 | Ethyl Aceto Acetate | 180 | |
1-Methylimidazole | 198 | Ethyl Acrylate | 99 | |
1-Phenyl Ethyl Isocyanate | 55 | Ethyl Bromoacetate | 159 | |
2,4-Dichloro Fluoro Benzene | 143 | Ethyl Chloro Acetate | 143 | |
2,2,2-Trifluoro Ethanol | 77 | Ethyl Chloroformate | 93 | |
2-Fluoronitrobenzene | 116 | Ethyl Iodide | 69 | |
2-(2-Chloro Ethoxy) Ethanol | 79 | Ethyl isocyano acetate | 195 | |
2-(2-Thienyl) Ethanol | 108 | Ethyl Methyl Ketone | 78 | |
2-(2-Thienyl) Methylamine | 95 | Ethyl Nipecotate | 102 | |
2-(3-Amino Propylamino)-Ethanol | 250 | Ethyl Nipecotate | 102 | |
2,2,4-Trimethyl Pentane | 99 | Ethyl Oxalyl Chloride | 135 | |
2,3-Dimethyl Pyrazine | 156 | Ethyl Propiolate | 120 | |
2,3-Lutidine | 162 | Ethylbromodifluroacetate | 112 | |
2,3,4- Trifluoroaniline | 92 | Ethylene Di Chloride | 83.5 | |
2,3,Dihydro Benzofuran | 188 | Ethylhexyl Stearate | >200 | |
2,3-Benzofuran | 173 | Eucalyptus Oil | 174 | |
2,4-Dichloro Benzylamine | 83 | Euxyl K 100 | 100 | |
2,5 Norbornadiene | 89 | Fluoro Benzene | 85 | |
2,5-Bis(Trifluoromethyl) Aniline | 70 | Formamide | 210 | |
2,5-Dichlorothiophene | 146 | Formic Acid | 100.8 | |
2,5-Dimethoxy Tetrahydrofuran | 145 | Fuming Nitric Acid | 86 | |
2,6-Lutidine | 143 | Furfuryl Alcohol | 170 | |
2,6-Difluoro Aniline | 51 | Gamma-Butyro Lactone | 206 | |
2,6-Difluoro Nitrobenzene | 91 | Glutarldehyde 50 % Solu. (198595) | 187 | |
2,6-Dimethyl Aniline | 214 | Glycerol BP | 290 | |
2-Acetyl Butyro Lactone | 107 | Hexa methyl Disilazane | 125 | |
2-Acetyl Thiophene | 214 | Hexane | 69 | |
2-Aminomethyl Pyridine | 202 | Hexene | 64 | |
2-Amino Thiophenol | 70 | Hexylene Glycol | 198.3 | |
2-Bromo Ethanol | 149 | HF/Pyridine(70%) | - | |
2-Bromo Biphenyl | 297 | Hydrazine Hydrate | 118 | |
2-Butyl Alcohol | 99.5 | Hydrobromic Acid | 124 | |
2-Chloro Ethanol | 127-136 | Hydrochloric Acid | 50.5 | |
2-Chloro Ethyl isocyanate | 135 | Hydrogen Peroxide | 150.2 | |
2-Chloro Pyridine | 170 | Iso Butanol | 108 | |
2-Fluoro Toluene | 113 | Iso Butylchlororformate | 128.8 | |
2-Fluorobenzyl Bromide | 84 | Iso Butyraldehyde | 63 | |
2-Methoxy 1-Propanol | 130 | Iso Propyl Acetate | 89 | |
2-Methyl Tetrahydrofuran | 78 | Iso Propyl Bromide | 59 | |
2-Methyl-1-Butanol | 132 | Iso Propyl Chloride | 34 | |
2-MethylaminoEthanol | 150-159 | Isoamyl Alcohol | 132 | |
2-Methylfuran | 63 | Isonicotinaldehyde | 77 | |
2-Phenyl Ethylamine | 197 | Isoparaffin | 115 | |
2-Pyridinecarboxaldehyde | 181 | Isopropenyl Acetate | 94 | |
2-Pyrrolidinone | 245 | Isopropyl Alcohol | 82 | |
2-Tetra Hydrofuroic Acid | 128 | Isopropyl Myristate BP | 192.6 | |
3,2-Dimethoxy Propane | 81 | Isovaleraldehyde | 90 | |
3 4 Difluoronitro Benzene | 76 | Lactic Acid | 122 | |
3- Chloro Aniline | 230.5 | m-Chloropyridine | 148 | |
3-Methyl-2-Butanone | 94.2 | Methacryloyl Chloride | 95 | |
3,3-Dimethyl Piperidine | 136 | Methane Sulfonic Acid | 100 | |
3,3-Dimethylbutyraldehyde | 104 | Methanol | 63.9 | |
3,4 Dichloro Benzoyl Chloride | 242 | Methyisobutylketone | 116.8 | |
3,4 dimethyl Benzylamine | 178 | Methyl Acetoacetate | 169 | |
3,4,5-Trimethoxy Toluene | 117 | Methyl Acrylate | 80 | |
3,4,5-Trimethoxybenzyl Alcohol | 228 | Methyl Cellosolve | 124.4 | |
3,4-Dihydropyran | 86 | Methyl Chloroacetate | 130 | |
3,5-Lutidine | 169 | Methyl Cyanoacetate | 204 | |
3-Amino-1-Propanol | 187 | Methyl Formate | 31.5 | |
3-Bromo-5-Fluorobenzonitrile | 210 | Methyl Iodide | 42.5 | |
3-Bromoanisole | 210 | Methyl Propyl Ketone | 100 | |
3-Butyn-1-ol | 128.9 | Methyl Tert-Butyl Ether | 54 | |
3-Chloro Benzaldehyde | 213 | Methylene Chloride | 40 | |
3-Chlorobenzy Bromide | 109 | Mono Isopropyl Amine | 32 | |
3-Cyclohexene-1-Methanol | 80 | Mono methyl amine - 40 % | 48 | |
3-Methoxy Benzaldehyde | 143 | Monoethylene Glycol | 198 | |
3-Methoxy Thiophenol | 223 | Morpholine | 128.9 | |
3-Methoxypropyl Amine | 109 | N- Benzylethanolamine | 153 | |
3-N,N,Dimethylamino Acrolein | 279 | n Butyl Acetate | 126.5 | |
4 -Amino Butyric Acid | 60 | N N Diethyl Aniline | 217 | |
4-(Trifluoromethoxy)aniline | 73 | N N N N-Tetramethyl Ethylenediamine | 120 | |
4-Amino-1-Butanol | 206 | N, O-Bis Trimethyl Silyl Acetamide | 71 | |
4-Chloro Ethylacetoacetate | 209 | N,N Diisopropylethylamine | 127 | |
4-Chlorobutyryl Chloride | 173 | N,N-Diisopropyl Carbodiimide | 145 | |
4-Ethylmorpholine | 139 | N,N-Dimethyl Acetamide | 164 | |
4-Fluoro Acetophenone | 196 | N,N-Dimethyl Aniline | 192 | |
4-Fluoro Aniline | 188 | N,N-Dimethyl Benzylamine | 178 | |
4-Fluoro Nitrobenzene | 205 | N,N-Dimethyl Eththylenediamine | 104 | |
4-Fluorobenzoyl Chloride | 82 | N,N-Dimethyl Propylene Urea | 146 | |
4-Isobutylacetophenone | 107 | N,N-Dimethylformamidedimethylacetal | 102 | |
4-Methoxy Phenyl Acetone | 145 | n-Butanol | 117.2 | |
4-Methoxybenzyl Chloride | 117 | n-Butyl Amine | 78 | |
4-Methyl Acetophenone | 226 | N-Ethyl Piperzine | 157 | |
4-Methylthio Benzaldehyde | 89-90 | n-Heptane | 98.4 | |
4-Phenyl 1-Butanol | 140 | N-Hexyl Amine | 131 | |
4-Phenylbutyric Acid Nitrile | 97 | N-Isopropyl Aniline | 206 | |
5 Fluoro Benzaldehyde | 181 | Nitric Acid | 86 | |
5-Ethyl-2-Methylpyridine | 178 | Nitrobenzene | 210.8 | |
5-Fluoro-2-Nitrotoluene | 97 | Nitromethane | 101.2 | |
Acetic Acid | 118 | N-Methyl 2- Pyrrolidinone | - | |
Acetic Anhydride | 140 | N-Methyl Morpholine | 115 | |
Acetoin | 148 | N-Methylaniline | 196 | |
Acetone | 56 | N-Methylpiperazine | 138 | |
Acetonitrile | 81 | n-Pentane | 36.1 | |
Acetophenone | 201.7 | n-Pentyl Amine | 104 | |
Acetyl Chloride | 51 | n-Propanol | 97.4 | |
Acrolein | 52 | n-Propyl Bromide | 71 | |
Acrolein Diethyl Acetal | 125 | O Toluidine | 199 | |
Acrylonitrile | 77.3 | o-Chloro Benzaldehyde | 209-215 | |
Acryloyl Chloride | 74-76 | Ortho Phosphoric Acid | 135 | |
Allyl Bromide | 71.3 | Oxalyl Chloride | 63 | |
Aniline | 184 | o-Xylene | 138-143 | |
Anisole | 154 | Petroleum Ether | 30 | |
Benzaldehyde | 179 | Phenyl Acetone | 100 | |
Benzene | 80 | Phenyl Chloro Formate | 135 | |
Benzene Sulphonyl Chloride | 251 | Phenylacetonitrile | 234 | |
Benzhydryl Chloride | 140 | Phenylchloroformate | 74 | |
Benzoyl Chloride | 197 | Phosphorous Tribromide | 175 | |
Benzyl Acetoacetate | 275 | Phosphorous Trichloride | 74.2 | |
Benzyl Acrylate | 228 | Phosporous Oxychloride | 105.8 | |
Benzyl Alcohol | 203 | Pinacolone | 106 | |
Benzyl Amine | 184 | Piperidine | 106 | |
Benzyl Bromide | 198 | Pivaloyl Chloride | 105 | |
Benzyl Chloride | 175 | p-Methoxybenzyl Cyanide | 286 | |
Benzyl Chloro Formate | 103 | p-Methyl Benzaldehyde | 204 | |
Benzyl Ethyl Malonate - 85% | 138 | Propargylamine | 83 | |
Bis (Trimethylsilyl) Acetylene | 136 | Propionaldehyde | 46 | |
Bis(Trimethylsilyl) Trifluoroacetamide BSTFA | 145 | Propionic Acid | 141.1 | |
Boron Trifluoride Diethyl Etherate | 126 | Propionic Anhydride | 167 | |
Bromine | 58.78 | Propionitrile | 97.2 | |
Bromo Benzene | 156 | Pyridine | 115.5 | |
Bromo Ethane | 38 | Pyridine-4-Carboxaldehyde | 77 | |
Bromo Nitro Methane | 146 | Pyrrole | 130 | |
Bromochloromethane | 68.1 | Pyrrolidine | 87 | |
Bromoform | 149.50 | R(+)-Glycidol | 61 | |
Bromotrimethyl Silane | 77 | Sodium Methoxide Methanol Solution | 69 | |
Butyryl Chloride | 102 | Sulfuric Acid | 315 | |
Carbon Tetra Chloride | 76.8 | Sulfuryl Chloride | 69.3 | |
Chloro Acetaldehyde | 85 | Tert-Butyl Bromo Acetate | 50 | |
Chloro Acetic Acid | 189 | Tertiary Butanol | 82 | |
Chloro Acetonitrile | 124 | Tertiary Butyl Acetate | 96 | |
Chloro Acetyl Chloride | 105 | Tertiary Butylamine | 46 | |
Chloro Benzene | 131 | Tetra Ethyl Ortho Carbonate | 159 | |
Chloro Butane | 78.5 | Tetrahydro-4H-Pyran-4-One | 166 | |
Chloroform | 60 | Tetrahydrofuran | 66 | |
Chlorosulfonyl Acetylchloride | 71 | Thiazolidine | 72 | |
Chloro Sulphonic Acid | 151 | Thionyl Chloride | 79 | |
Collidine | 171 | Thiophene | 84.14 | |
Cyclohexane | 80.7 | Titanium Tetrachloride | 136.4 | |
Cyclohexanone | 155.6 | Titanium Isopropoxide | 220 | |
Cyclohexyl Isocyanate | 168 | Toluene | 110.6 | |
Cyclohexylamine | 134.5 | Tributyl Tin Chloride | 171 | |
Cyclopropane Carboxylic Acid | 182 | Tributylamine | 216 | |
Cyclopropylamine | 49 | Triethyl Ortho Formate | 146 | |
Decyl Oleate | 363 | Triethyl Phosponoacetate | 118 | |
Di Benzyl Amine | 300 | Triethyl Silane | 107 | |
Trimethylsilyl Trifluoromethane Sulphonate | 77 | Triethyl Silyl Chloride (TESCI) | 142 | |
Tri-n-Butylamine | 216 | Triethylamine | 89 | |
Valeronitrile | 139 | Trifluoroacetic Acid | 72.4 | |
Valeryl chloride | 125 | Trimethyl Chloro Silane | 58 | |
Valeryl Chloride (Pentanoyl Chloride) | 125 | Trimethyl Ortho Formate | 101 |
From the above mentioned listing, Petroleum Ether is highly volatile i.e., B.P. is 30°C,
So, Step - 1 is done.
Now, lets move to Step - 2.
Step - 2: Boil-up calculation,
This is somewhat crucial step in the whole process.
To generate maximum boil-up the utility in reactor jacket shall be Saturated steam,
Jacket pressure: 0.2 Kg/Cm2. Temperature: 105.1 °C,[Refer Steam Tables]
A 10 KL SS reactor will have an Heat transfer area of 19.8 Sq.m,[Use this Spreadsheet to calculate the HT Area - Learn it here]
Lets consider 70% occupancy, The effective HT area will be 13.86 Sq.m.
The boil-up shall be calculated based on the formula: M x Æ› = U x A x LMTD.
Petroleum Ether Properties:
Specific heat, Cp: 0.22 KCal/Kg.K,
Latent heat, Æ›: 85 KCal/Kg,
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LMTD calculation: (ΔT1 - ΔT2) / ln(ΔT1/ΔT2)
ΔT1 = 105.1 - 30 = 75.1°C, ΔT2 = 105.1 - 35 = 70.1°C,
LMTD = (75.1 - 70.1) / ln(75.1/70.1) = 72.46°C.
Lets consider U = 250 KCal/Sq.m.hr.K,
U x A x LMTD = 250 x 13.86 x 72.46 = 251073 KCal.
M = 251073 / 85 = 2954 Kgs.
So, the boil-up is 2954 Kgs.
Step - 2 is successful.
Lets move to Step - 3.
Step - 3: Condenser Capacity calculation,
Lets use the basic formula,
(M x Cp x dT) + (M x Æ›) = U x A x LMTD.
Lets calculate,
(M x Cp x dT) + (M x Æ›) = (2954 x 0.22 x 5) + (2954 x 85) = 254340 KCal.
For a condenser we'll consider U as 400 KCal/Sq.m.hr.K,
LMTD calculation: (ΔT1 - ΔT2) / ln(ΔT1/ΔT2),
Consider Chilled water as condenser utility,
Inlet utility temp.: 8°C, Outlet utility temp.: 15°C,
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What capacity motor is suitable for reactor ?ΔT1 = 30 - 8 = 22°C, ΔT2 = 30 - 15 = 15°C,
LMTD = ( 22 - 15 ) / ln( 22 / 15 ) = 18.276°C.
A = 254340 / (400 x 18.276) = 21.11 Sq.m.
Considering 20 % excess as safety, A = 21.11 x 1.2 = 25.34 ~26 Sq.m.
So, the required condenser capacity required for 10 KL SS reactor is 26 Sq.m
That's it......!!!
Hope you all got it, if any queries feel free to comment / message.
Comments are most appreciated........!!!
You can check our demonstration video:
SpreadSheet shall be updated soon.
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