Flow rates interstage cooling

Radial. heat transport may be a problem in trickle flow but is never a problem in slurry reactors. Also the heat remoyal/addition in slurry reactors is much more easy because high heat transfer rates to cooling surfaces are possible. In trickle flow reactors interstage cooling, cold shot techniques and cooling with an evaporating solvent are possible and the latter technique can also be applied with slurry reactors. 

A natural gas (methane) pipeline is to be designed to transport the gas at a rate of 50,000 scfm. The pipe is to be 6 in. ID, and the maximum pressure that the compressors can develop is 10,000 psig. The compressor stations are to be located in the pipeline at the point at which the pressure drops to 100 psi above that at which choked flow would occur (this is the suction pressure for the compressors). If the design temperature for the pipeline is 60°F, the compressors are 60% efficient, and the compressor stations each operate with three stages and interstage cooling to 60°F, determine... 

Natural gas (CH4) is transported through a 6 in. ID pipeline at a rate of 10,000 scfm. The compressor stations are 150 mi apart, and the compressor suction pressure is to be maintained at lOpsig above that at which choked flow would occur in the pipeline. The compressors are each two stage, operate adiabatically with interstage cooling to 70°F, and have an efficiency of 60%. If the pipeline temperature is 70°F, calculate ... 

The gas stream leaves a first-stage compressor in an olefin plant at a pressure of 48 psia and a temperature of The gas flow rate is 295,000 Ib/h consisting of 240 Ib-mol/h of water vapor and 10,000 Ib-mol/h of hydrocarbon. The exit gas must be cooled to 97°E Water to cool this gas steam is available at 90°F for use in a direct-contact gas cooler. The heated water effluent from this column should be at a temperature of about 130°F so that it can be returned to the center of the water quench tower. What will be the size of a packed interstage cooler, and how much can it reduce the gas-side pressure drop of 4.0 psi through the present tube-and-shell heat exchangers ... 

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