Two streams mix together:
1. A liquid or oil stream @ 160 degC and 110 kg/cm2(g).
2. A gas stream (mainly H2 gas) @ 160 degC and nearly 85 kg/cm2(g).
The "mixer" consists of a pipe, in which oil is flowing from right to left.
The gas entering at right angle from above. The gas is introduced in the oil by means of a nozzle in form of a smaller dia pipe with an elbow, directing ALONG the flow of liquid.
(if direction of flow of oil is --> , then the elbow also directs the smaller pipe towards ---> direction).
There is no pressure indicator just before or after the "mixer".
The questions are:
1. What will be the resulting pressure, downstream of the mixer? (after the nozzle or smaller dia pipe).
2. Why does liquid oil not enter the smaller pipe which introduces the H2 gas into the oil?
3. Does the nozzle in the pipe act as an "ejector"? and the gas being pulled along the oil?
4. What will happen if the nozzle is removed along with its elbow, and the gas introduced in to the liquid just using the pipe attached at right angle? Will the gas flow in to the oil or the oil will flow in to the gas?
The approximate flow rates are:
Liquid: 112 STD m3/hr (94,000 kg/hr).
Gas: 74,000 Nm3/hr (12,000 kg/hr).