Answer / anand

actually above 350-375 oC temp. the crude oil is going to
crack and the light product will form. but the main aim of
this distillation process is to seperate the various
fractions rather than producing the light product. so to
avoid this the residue of the atmospheric distillation
tower is processed under vacuum above 350 oC and we get the
various types of product which will be useful for making
various types of lubricating oil, mineral oil, transformer
oil, quenching oil etc.

Answer / sourya

All the fractions that can be separated by the distillation
process under atmospheric conditions is separated in the ADU
and the higher molecular weight fractions that crack under
those conditions to produce carbon(petroleum coke) is
removed as the bottoms and then passed on to the next Vacuum
Distillation unit(VDU) for recovery of all the higher fractions.

Answer / dhanashree

The main aim of distillation is to obtained various
petroleum product at various temp. & press. for that
recovery ,distillation system require rage of temp. As
petrolium products are heighly explosive, catches fire at
low temp.Vaccum distillation is used in petroleum refinery.
Becouse under vaccum the boiling point of liquid get lowers
down & pressure required is also less.

Answer / pushkar deo

It is a process for getting vacuum distilates for
lubricating oil and to get feed for FCC.

How to TDS removed found in lab apparatus.

1 Answers  

---

what is the hearth and arch pressure in furnace?

0 Answers   Essar, TATA,

---

The power required for size reduction in crushing is???

5 Answers  

---

We wanted to know how to impart various colors to copper wire by simply dipping them into various chemicals, formulations, etc. This copper wire is to be used by us for our hobby of making various art objects from copper wire.

0 Answers  

---

why is cross over inlet provided in a furnace?

3 Answers   Essar,

---

---

Question 52 - The half-life for first order reaction could be described in the differential equation dC / dt = -kC where k is a constant, C is concentration and t is time. (a) Find the equation of C as a function of t. (b) Find the half life for such reaction or the time required to reduce 50 % of the initial concentration, where k = 0.139 per minute. (c) When the initial concentration Co is 16 mol / cubic metre, how long does the reaction required to achieve the final concentration of 1 mol / cubic metre?

1 Answers  

---

Hi.. Me going to tke test for management trainee(technical) Post I am an chemical engineering student . Can u guide how to prepare for this test.Can u send me test paper pattern..?

0 Answers  

---

what is the role of a chemical engineer on a cement plant?

4 Answers  

---

When specifying a cooling tower, should I look up historic wet bulb temperatures for my area or should I take measurements?

0 Answers  

---

QUANTUM BIOLOGY - EXAMPLE 33.4 : (a) According to Landauer (1986), the capacity of human memory is approximately X bits. Assume that a human retains 2 bits / second of visual, verbal, tactile and musical memory, find the value of X if a human lifetime is approximately 2.5 billion seconds. (b) The total power consumption of the human brain is about 25 Watts. The bread of 100 grams will produce 1000 kilojoules of energy. How much bread is needed to run a human brain for 1 day?

1 Answers  

---

Which type of pneumatic control valve is used mostly Either Air to Open r Air to close the value And guys I need reason for your reason

0 Answers  

---

A distillation column separates 10000 kg / hr of a mixture containing equal mass of benzene and toluene. The product D recovered from the condenser at the top of the column contains 95 % benzene, and the bottom W from the column contains 96 % toluene. The vapor V entering the condenser from the top of the column is 8000 kg / hr. A portion of the product from the condenser is returned to the column as reflux R, and the rest is withdrawn as the final product D. Assume that V, R, and D are identical in composition since V is condensed completely. Find the ratio of the amount refluxed R to the product withdrawn D. Hint : Solve the simultaneous equations as follow in order to find the answer (R / D) : 10000 = D + W; 10000 (0.5) = D (0.95) + W (0.04); 8000 = R + D.

2 Answers  

---