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Hydrogen chloride gas, produced by burning chlorine with hydrogen, is required at a supply pressure of 600 kN/m2, gauge. The pressure can be achieved by either operating the burner under pressure or by compressing the hydrogen chloride gas. For a production rate of hydrogen chloride of 10,000 kg/h, compare the power requirement of compressing the hydrogen supply to the burner with that to compress the product hydrogen chloride. The chlorine feed is supplied at the required pressure from a vaporizer. Both the hydrogen and chlorine feeds are essentially pure. Hydrogen is supplied to the burner one percent excess of the stoichiometric requirement.
A two-stage centrifugal compressor will be used for both duties. Take the polytrophic efficiency for both compressors as 70%. The hydrogen supply pressure is 120 kN/m2 and the temperature 25 °C. The hydrogen chloride is cooled to 50 °C after leaving the burner. Assume that the compressor intercooler cools the gas to 50 °C, for both duties.Which process would you select and why?
Draw a schematic diagram of transformer connections, and develop a per-phase equivalent circuit.
On the same graph plot temperature, ignoring the effect of conduction, which assumes linear variation with time. Comment on your findings in relation to diffusion time found in problem 10.
the equilibrium constant K for the reaction - what is the concentration of SO3 at equilibrium?
Calculate the radius of an iridium atom. Calculate the radius of an iridium atom, given that Ir has an FCC crystal structure,
What results can be expected in the near-term? The mid-term? The long-term? Nanotech's development can usefully be divided into stages, for example:
Compare the energy of the incident light with the rest energy of the earth using Einstein's mass-energy equivalence equation E = mc2, where the mass of the earth is 6 x1024 kg.
A large CSTR, small CSTR and PFR of fixed volume are available. In general, how wouldyou arrange them for getting maximum conversion forreactions of order >1 and1 arrangement is PFR followed by small CSTR followed by large CSTR tomaintain the reac..
A polymer is produced by the emulsion polymerization of acrylonitrile and methyl methacrylate in a stirred vessel. The monomers and an aqueous solution of catalyst are fed to the polymerization reactor continuously. The product is withdrawn from t..
For parts (a), (c), (d), (f), and (h) of Problem 10.20, determine the approximate percentages of the microconstituents that form. (a) Rapidly cool to 250(C (480(F), hold for 103 s, then quench to room temperature.
Calculate the tap pings k on a three-phase autotransformer to limit the starting current to 4 times the full load current. For such a limitation, determine the ratio of starting torque to full-load torque.
production of chemicals from coalcoal has been considered a major component of u.s. energy reserves for a long time and
If the excitation is adjusted such that the magnitudes of the excitation voltage and the terminal voltage are equal, and if the motor is taking 20 A, find the torque developed.
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