Glycol is produced on commercial scale from ethylene oxide reactant, which is made by the partial oxidation of ethylene with an excess of air over a silver catalyst. The primary reaction is 2C2H4 + O2 → 2C2H4O Unfortunately, some of the ethylene also undergoes complete oxidation to CO2 and water via the following reaction C2H4 + 3O2 → 2CO2+ 2H2O Suppose for a feed containing 10% ethylene, an ethylene conversion of 25% and an oxide yield of 80% is obtained from the reactant. Calculate the composition of the reactor outlet stream under such operating conditions

11.4 mole dichloromethane (CH2Cl2) enter a reactor with 20.6 mole hydrogen (H2) and 38.6 mole oxygen (O2).  The following reaction takes place: CH2Cl2 + H2 + 3/2 O2 → COCl2 + 2 H2O The extent of the reaction is 6.8. Calculate the mole of H2O that are produced.

Consider the pair of reactions in which ethylene is oxidized either to ethylene oxide (desired) or to carbon dioxide (undesired) in the furnace: C₂H4+0₂-C₂H4O C₂H₂ +30₂-2 CO₂ + 2H₂O The feed mixture and air are fed at a temperature To. All gaseous effluents are at temperature T emerging from the non-isothermal reactor. a) Calculate the number of degrees of freedom of the process. How would the answer differ if the reactor were adiabatic? b) Outline a manual calculation procedure to determine the compositions of all streams.

Methanol (CH3OH) and its derivative products are used as base materials in acrylic plastic, synthetic fabrics, adhesives, paints and as chemical agent in pharmaceuticals and agrichemicals. In petrochemical industry, one promising pathway to produce methanol is from conversion of syngas to methanol via hydrogenation of carbon dioxide and carbon monoxide. The reaction of this process is given as follows, CO + 2H2 → CH3OH (1) CO2 + H2 → CO + H20 (2) Suppose 1000 kmol/hr of syngas with molar composition of 22% CO2, 6.7% CO, 65% H2, 4.1% H20, 1.1% CH4 and 1.1% N2 is used as fresh feed. (a) Draw and label a complete process flow diagram of this process. (b) Calculate the amount of unreacted CO2 if given single pass conversion of CO2 is 14.2%. (c) Calculate the extent of reaction for the side reaction (2) and the amount of water produced. (d) If the selectivity of methanol to water is 92.1%, calculate the amount of methanol produced. (e) Determine mole fraction of CH3OH, CO2, CO, H2, H2O, CH4…

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Benzene vapor is burned in air. Find the molar enthalpy of the reactants and the products if all heat is extracted from the reaction and the initial and final temperatures are equal. (Assume the H2O product is a liquid)

Alumina from bauxite separation stage calculations A crucial step in the production of aluminum from bauxite ore is the separation of alumina from the remaining mineral impurities in the ore. In the Bayer process this is accomplished by treating bauxite with aqueous NaOH to produce NaAIO2 (alumina). NaOH(aq) + Al(OH)3(s) → NaAIO2(aq) + 2H2O(1) Since NaAIO2 is water soluble while the residual mineral constituents of bauxite are not, a separation can be achieved by allowing the minerals to settle out and decanting the aqueous solution of NAAIO2 and unreacted NaOH. In order to further recover any NAAIO2 entrained in the settled mineral solids, this "mud" is repeatedly washed with water and allowed to settle, and the wash water is decanted. The figure below shows one stage of this washing-settling process. Wash water Slurry - Open to air Mixer/Wash tank Setling tank Decanted solution System boundary Washed mud In this stage, a feed slurry consisting of 10 wt% solids, 11 wt% NaOH, 16 wt%…

One of the ways that benzene is produced on a large scale is the hydrodealkylation of toluene. C,H,CH; + H, C,H, + CH4 A stream of toluene is mixed with a recycle stream and enters a reactor along with a stream of pure hydrogen. The reaction products at 550 °C enter a condenser, where they are cooled to 41.0 °C. A vapor stream containing Y5CH, = 0.600 mol CH,/mol leaves the process, and a liquid stream containing x66 = 0.810 mol benzene/mol and x6 = 0.190 mol toluene/mol enters a distillation column. The distillate of the column leaves the process at n7 = 668.0 mol/h and contains y7h = 0.9000 mol benzene/mol and y7 = 0.1000 mol toluene/mol. The bottoms of the column contains X8b = 0.250 mol benzene/mol and xgt = 0.750 mol toluene/mol and is recycled back to the fresh feed. Hydrogen is fed into the process at ni = 1183 mol H,/h. This process is carried out at 760 mmHg. A n, mol/h mol H/mol YSH2 YSCH, mol CH_/mol Ysh mol b/mol Ys mol t/mol n̟ mol/h n, mol/h Condenser Улн, тol H/mol Усн,…

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1. In a process for the manufacture of chlorine by direct oxidation of HCI with air over a catalyst to form Cl₂ and H₂O (only), the exit product is composed of HCI (4.4%), Cl₂ (19.8%), H₂O (19.8%), O₂ (4.0%), and N₂ (52.0%). The chemical reaction involved is as follow: 4HC1+02 → 2Cl2 + 2H₂0 Find a) limiting reactant and excess reactant, b) percent excess reactant, c) degree of completion of the reaction, d) extent of reaction