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eBook - ePub
About this book
This is not your average technical book! Using a humorous and easy-to-understand approach to solving common process engineering problems, this unique volume is the go-to guide for any veteran or novice engineer in the plant, office, or classroom. Textbooks are often too theoretical to help the average process engineer solve everyday problems in the plant, and generic handbooks are often out of date and not comprehensive. This guide focuses on the most common problems that every engineer faces and how to solve them. The "characters" walk the reader through every problem and solution step-by-step, through dialogues that literally occur every day in process plants around the world.
With over half a century of experience and many books, videos, and seminars to his credit, Norm Lieberman is well-known all over the world and has helped countless companies and engineers through issues with equipment, processes, and training. This is the first time that this knowledge has appeared in a format like this, quite unlike anything ever published before in books on process engineering. This is a must-have for any engineer working in process engineering.
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Please note we cannot support devices running on iOS 13 and Android 7 or earlier. Learn more about using the app.
Yes, you can access Process Engineering by Norman P. Lieberman in PDF and/or ePUB format, as well as other popular books in Technology & Engineering & Engineering General. We have over one million books available in our catalogue for you to explore.
Information
PART I
CHAPTER ONE
PROCESS OPERATIONS & DESIGN
CARL & CLARE
Hello! I’m Clare! I work for Carl. We troubleshoot refinery process equipment! We’re a team!
Hi! I’m Carl! I know everything, because I’m really, extremely, smart! Clare is my associate!
INCREASING COOLING WATER FLOW THRU AN ELEVATED CONDENSER OR COOLER
Clare! Let’s open the cooling water outlet valve to get more water flow.
No, Carl! The Condenser is 60 feet above grade. The pressure at P1, is under vacuum! Opening that valve will give us less cooling water flow!
NO! Opening a valve will always increase flow!
Sorry, Carl! Opening that valve reduces the pressure at P1, further below the atmospheric pressure. This causes the air to flash-out of the cooling water, which chokes back water flow!
Clare! WRONG! I’m really smart! Anyway, where’s the test to prove you’re right?
OK. I’ll close the valve and you’ll see the temperature at T1 will go down. But don’t close it too much! Otherwise, you will throttle the water flow. Then, T1 will get hotter!
But Clare! How do I know how to adjust that stupid valve?
Carl, dear! Set the valve to hold a backpressure of about 3″ Hg. That’s minus 0.10 atmosphere. At 100 °F, that will stop air evolution from the water, but not throttle the water flow too much!
HOT VAPOR BY-PASS PRESSURE CONTROL
Clare! Close the hot vapor by-pass valve! We need to lower the tower pressure. Do it now!
Sorry, Carl! When I closed the valve the tower pressure went up … not down!
No, Clare! Closing the valve will cool off the reflux drum! The pressure at P2 will drop, and draw down the pressure at P1. Understand?
But Carl! How about the pressure drop across the air cooler? It increases as more flow is forced through it. True, the pressure at P2 will always fall! But the pressure at P1 may go up or down—depending on the air cooler DP!
But, but …? Closing the hot vapor by-pass is supposed to lower the tower pressure, according to my design manual!
But suppose the tubes get full of salts and scale? Then what? Also, Carl, we now have a vacuum in the reflux drum, which can be quite dangerous! Air could be sucked into the drum and an explosive mixture could form! Don’t forget there’s pyrophoric iron sulfide deposits (Fe(HS)2) in the drum! They’ll auto-ignite at ambient temperatures!
STALLING A THERMOSYPHON REBOILER
Clare! Open the steam supply valve! Quick! We need more reboiler heat. The reflux drum is going em...
Table of contents
- Cover
- Title page
- Copyright page
- Dedication
- Other Books By Norman Lieberman
- Introduction
- Part I
- Part II
- The Norm Lieberman Refinery Troubleshooting Seminar Video Presentation
- Index
- End User License Agreement