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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?
A condenser is required to condense n-propanol vapour leaving the top of adistillation column. The n-propanol is essentially pure, and is a saturated vapourat a pressure of 2.1 bara.
Determine the number of barrels of mud gained due to pumping the slug and determine the feet of dry pipe. Mud weight = 12.6 ppg.Slug weight = 14.2 ppg.
Compute the sending-end voltage, current, real power, and reactive power for the following conditions:
A brief current pulse of duration 50 ms and amplitude 1 mA is presented to a cell membrane with time constant 10 ms. Find the cell membrane voltage output.
Find the -6 dB width of the envelope of a time pulse and the two end frequencies needed to scan a 1 mm thick slice from -15 cm to +15 cm around an isocenter on the z axis. Assume Gz = 0:5 T=m.
Determine the readings of the two watt meters WA and WC, and verify that the sum of these readings equals the total power in the load.
Question -3 -the first order reaction A-(B is carried out in tubular reactor in which volumetric flow rate is constant . derive an equation relating to the reactor volume to the entering and exiting concentration of A .
Two equilibrium stages at 25C are used as shown in the following diagram. If 300 kg H2O/h is fed to each extraction unit, what fraction of the acetone in the feed solution would be removed and what would be the composition of the combined extract?
Use the van der Waals, the Soave-Redlich-Kwong, and the Peng-Robinson equations to determine the molar volumes of the saturated phases of ethylene at 260 K (the saturation pressure is 30.35 bar). Compare with the tabulated values,VL = 0.0713 l/m..
A member of our engineering team objects that the reference state is not valid because a substance is not ideal at the critical point. What is your response?
Develop forecasts for the PET-PX margin based on contract pricing using data from (a) Jan. 2000-Oct. 2010, (b) Jan. 2006-Oct. 2010, and (c) Oct. 2009-Oct. 2010. In each case, predict the PET-PX margin in Jan. 2020. Which forecast appears to be mos..
Under what circumstances and for what kinds of disabilities would the CLI be superior to or be preferred over the GUI?
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