Refining Online
lineYellow.gif (837 bytes)


Questions & Answers

Blogs
ROL Blog
Q&A
Browse the Q&A
Knowledge Base
Services
• Online Training
• Tech Support Svc
Events
Events Calendar
Submit Event
ROL Assistant
About
Download
Member Directory
Search
About
Add
More Information
Contact Us
Refining Online Q&A Post a question
Guidelines & Conditions
 
  Search the Q&A
 Keywords:
 Category:
 Question No.                                     
Browse all questions
Last 10 active questions:


Question No : 5883  Date Posted :3/20/2017 View detailsView details and responses  
Category : Refining Submit a responseSubmit a response  
  Subject : DIH Side Draw
  We are in the commissioning phase of PENEX Unit. I want to know the specs for DIH side draw & HCl.
Number of responses: 1


Question No : 5882  Date Posted :3/16/2017 View detailsView details and responses  
Category : Refining Operations Submit a responseSubmit a response  
  Subject : LSHV
  What is LSHV and how is it maintained? What will happen to reaction if LSHV increases or decreases?
Number of responses: 2


Question No : 5881  Date Posted :3/15/2017 View detailsView details and responses  
Category : Refining Operations Submit a responseSubmit a response  
  Subject : About CDU Shutdown and start-up procedure
  I want to know the steps for CDU shutdown and startup procedure under normal conditions.
Number of responses: 1


Question No : 5880  Date Posted :3/3/2017 View detailsView details and responses  
Category : Refining Operations Submit a responseSubmit a response  
  Subject : Platforming process/ R-98 Catalyst
  Why do we introduce feed 2 at 370 Deg C and stop it at 455 Deg C?

What happens if we do not stop feed at 455 Deg C when trouble occurs?

Number of responses: 0


Question No : 5879  Date Posted :2/23/2017 View detailsView details and responses  
Category : Refining Submit a responseSubmit a response  
  Subject : Catalyst poisoning
  Why metals are permanent poison for catalyst? Platinum, Rhenium and others are temporary poisons. Why?
Number of responses: 2


Question No : 5878  Date Posted :2/15/2017 View detailsView details and responses  
Category : Refining Operations Submit a responseSubmit a response  
  Subject : How to detect the leak source in DHDT unit?
  WABT of DHDT reactor increased significantly in the last two months, (358 Deg C to 372 Deg C) when blocked at 10 ppm ULSD production, all operating parameters seem "OK" during the period, and we analyzed some unusual sulfur species (DBT) at 10 ppm product. My questions are:

(1). Could anyone share any experience on detecting leakage issue in DHDT unit? What are the good practices to detect leakage?
(2). What kind of sulfur species shall not exist in 10 ppm ULSD? I would like to know the indicator of leakage evidence.

Number of responses: 1


Question No : 5877  Date Posted :2/11/2017 View detailsView details and responses  
Category : Refining Operations Submit a responseSubmit a response  
  Subject : Compressor KOD
  In hydrocraker unit, Make up compressor l, there is first stage KOD LG and LT is connected to ATM while second stage KOD LG and LT is connected to flare. Is there any reason for that?
Number of responses: 0


Question No : 5876  Date Posted :2/8/2017 View detailsView details and responses  
Category : Refining Submit a responseSubmit a response  
  Subject : FCC Unit
  1. Why is skin temperature measured in the Reactor Regenerator section.

2. Where is it measured & what is the methodology used for establishing the skin temperature.

P.S.: Please note that the reactor regenerator are cold wall designed.

Number of responses: 2


Question No : 5875  Date Posted :2/7/2017 View detailsView details and responses  
Category : Refining Operations Submit a responseSubmit a response  
  Subject : Furnace refractory dry out
  The optimum refractory dry out temp. is 450 Deg C. The operating temp. is 750 Deg C. Can we skip this 450-750 range dry out temp.? Is there any possibility of trouble shooting during start up?
Number of responses: 1


Question No : 5874  Date Posted :2/4/2017 View detailsView details and responses  
Category : Refining Operations Submit a responseSubmit a response  
  Subject : Rotating equipment
  What is Hydrocom compressor and how does it works?
Number of responses: 1


 


Refining Online is a service of Astron International, Inc.
© 1999-2017 Copyright Astron International Inc., all rights reserved.

Disclaimer  Privacy Policy