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100 moles of a fuel containing methane and butane is burned with 25% excess air in a furnace producing stack gas at 300 degrees C and 105 kPa. Determine the amount of 100 psi saturated steam that can be produced from water fed in at 10 degrees C, if
a) The stack gas does not contain methane, butane or CO,
b) The dew point of the stack gas is 58 degrees C, and
c) The air enters at 20 degrees C as dry air.
50. Methanol is synthesized from carbon monoxide and hydrogen in a catalytic reactor. The fresh feed to the process contains 32.0 mole% CO, 64.0% H2, and 4.0% N2. This stream is mixed with a recycle stream in a ratio S mol recycle/1 mol fresh feed to..
is to be separated in a reversible continuous flow isothermal, isobaric separator into pure acetone and an aeotrope that forms at 39.250C under atmospheric pressure. The azeotrope contains 61mole % CS2.
A particle with the mass of a proton is trapped in a box. The particle falls from the state to the state and emits 0.16 meV of energy. What is the size of the box? (nm
A flow process that operates with steam has one inlet stream (A) and two outlet streams (B and C). Stream A is at 20 bar, 25 °C, and has a mass flow rate of 10 kg/s; stream B is saturated liquid at 20 bar and has a flow rate of 7 kg/s; stream C is..
Caps are arranged on equilateral-triangle centers staggered perpendicular to direction of liquid flow, and liquid depth above caps is less than 1 in.
Additional data: Assume for simplicity that the ideal-gas heat capacities are constant: n-hexane = 176 J/mol K; n-octane = 247 J/mol K.
A liquid containing 60 mol% toluene and 40 mol% benzene is continuously distilled in a single-equilibrium-stage unit at atmospheric pressure. What percent of benzene in the feed leaves in the vapor if 90% of the toluene entering in the feed leaves..
read the titled book nontechnical guide to petroleum geology exploration drilling and production 2nd editionwritten by
Show that a PI feedback controller is undesirable because it results in a differentiator in the forward path. Discuss the step response of the closedloop system.
Apply linear programming to this problem. A firm wants to determine how many units of each of two products (products X and Y) they should produce in order to make the most money. The profit from making a unit of product X is $190 and the profit fr..
Estimate the constant-pressure heat capacity of oxygen at - 50 °C, 38 bar, using the truncated virial equation. Hint: Use the truncated virial to calculate the enthalpy at two pressures near - 50 °C, 38 bar, then obtain the heat capacity by numeri..
Calculate the standard enthalpy of combustion per gram of liquid methanol and compare this answer to that for ethanol in Exercise 75.
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