Reference no: EM13884295
A fixed-bed reactor is to be designed for a hydrocracking process. The reactor will treat 320,000 lb/hr of vacuum gas oil (specific gravity 0.85) in the presence hydrogen at 650 ºF, 2000 psig, 1.0 weight hourly space velocity (WHSV). The catalyst has bulk density of 50 lb/ft3 and void fraction 0.4. The catalyst is to be divided into four beds, to allow a hydrogen quench to be brought in between the beds for temperature control. Make a preliminary mechanical design of the reactor(s). Your design should include:
a. Selection of material of construction
b. Sizing of the vessel(s) including allowance for any internals
c. Determination of the required wall thickness
d. Selection and sizing of vessel heads
e. The nozzles and flanges (use standard flanges)
f. A support skirt
You need not design the vessel internals.
You should consider the following design loads:
a. Internal pressure
b. Wind loading
c. Dead weight of vessel and contents (vessel full of catalyst and gas oil)
d. Hydraulic testing with no catalyst and vessel full of water
|
Continuously with a stream of nitrogen
: A storage tank is purged continuously with a stream of nitrogen. The purge stream leaving the tank is saturated with the product stored in the tank.
|
|
Propylene over zeolite catalyst
: Cunene is made by alkylation of benzene with propylene over zeolite catalyst. To maximize selectivity to desired products, several beds of catalyst are used inside the same reactor.
|
|
How does an mrp-ii system or an erp system help
: How does an MRP-II system or an ERP system help a company be more successful in managing its business and achieving its strategic objectives? Relate this to actual situations of companies you are familiar with.
|
|
Physical properties of the fluid
: The physical properties of the fluid are: density 875 kg/m3, viscosity 1.46 mN m-2 s. Also, determine the NPSH, at this flow rate, if the vapor pressure of the fluid at the pump suction is 25 kN/m2.
|
|
Designed for a hydrocracking process
: A fixed-bed reactor is to be designed for a hydrocracking process. The reactor will treat 320,000 lb/hr of vacuum gas oil (specific gravity 0.85) in the presence hydrogen at 650 ºF, 2000 psig, 1.0 weight hourly space velocity (WHSV).
|
|
Compute the sample variance and sample standard deviation
: Using the below exhibit formulate a statistical hypothesis appropriate for the consumer group's purpose, and then calculate the mean average miles per gallon. Compute the sample variance and sample standard deviation
|
|
Burning chlorine with hydrogen
: 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.
|
|
Blanketed with nitrogen and the pressure
: Crude dichlorobenzene is pumped from a storage tank to a distillation column. The tank is blanketed with nitrogen and the pressure above the liquid surface is held constant at 0.1 bar gauge pressure. The minimum depth of liquid in the tank is 1 m.
|
|
What is a warehouse management system
: What is a warehouse management system
|