Blogs

Production Of Triple Superphosphate

Posted by ankur2061 in Ankur's_Chemical_Engg_Blog, in Technical 26 December 2018 -

· 18,223 views

triple, superphosphate

Dear All,

Today's blog entry is in continuation of the blog entry I had made earlier for production of phosphoric acid using the wet process. The phosphoric acid produced by the wet process can be used as a raw material for the production of triple superphosphate.

The process description for Triple Superphosphate is referenced from Kirk-Othmer Encyloped...

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Featured

Online Store And Chexpress Run Coming To An End

Posted by Chris Haslego in Community Admin Blog, in Community Updates 24 January 2015 -

· 38,271 views

For many years, Christa Semko has been providing us with chemical manufacturing news updates through her blog. For even more years, we've had an online store where you can purchase quality engineering calculations in MS Excel format. We'll be ending both of these features in 2015.

The online software store will close on June 30, 2015. So, please, if y...

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4 Comments

Featured

Chexpress - December 17, 2014

Posted by ChristaS in ChExpress Blog, in ChExpress Blog 17 December 2014 -

· 12,823 views

dow chemical and 9 more...

North America

Sales

Dow Chemical is selling two businesses for a total of $225 million. Vertellus Specialty Materials will buy Dow’s sodium borohydride business and Valfilm North America will buy a Dow polyolefin films plant in Findlay, Ohio. Dow expects both sales to close during the first quarter of 2015. The divestiture of the sodium borohydride bu...

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3 Comments

Featured

International Pump Users Symposia

Posted by Chris Haslego in Art Montemayor's Blog, in Technical 11 August 2014 -

· 8,177 views

pump, downloads, documents, user

Below is an important message from Art to all community members:

I’ve invested some time in downloading and compiling a listing of all the documents and printed information that has been presented in the proceedings of the Texas A&M University International Pump Users Symposia that began in 1984. I have prepared this material in order to facilita...

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5 Comments

Featured

What Is A Steam Trap?

Posted by Zeeshan Amin in Zeeshan Amin's Blog, in Engineering 17 June 2012 -

· 14,902 views

steam, trap, definition

A steam trap is an essential element of a steam distribution piping system. As steam flows through a pipe, it cools off due to heat losses and converts into hot water; this hot water is called condensate. The function of a steam trap is to bleed off hot water so that only steam remains in the system. In addition to condensate removal, a steam trap also...

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5 Comments

Featured

Dust Hazard Assessment

Posted by in Mark Roote's Blog, in volume, length to diameter, dust accumulation 07 October 2011 -

· 6,663 views

cyclone, baghouse, nfpa, osha and 1 more...

Anyone working in a facility that handles dust (which is essentially every facility) is trying to get ready for the crackdown from OSHA and NFPA. While OSHA and NFPA are still trying to figure out the best way to implement new standards, what those standards will be and how to enforce the standards, NFPA and OSHA have come out with some temporary...

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1 Comments

Featured

A Different View Of Harrell's Colebrook-White Solution

Posted by Harrell in Harrell's Blog, in Technical 01 October 2011 -

· 6,416 views

solution, white, view, different and 1 more...

For some reason, most people still do not understand how my Colebrook-White solution works.

It has been tested, and re-tested over and over, and always gets the right answers if you don't make
a weird error.

This may help those who are questioning "Why does it work?"

In the Wikipedia you can read about the Lambert W function. Here's a...

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1 Comments

Deleterious Effects Of Low Velocity Flow In Piping And Pipelines

Posted by ankur2061 in Ankur's_Chemical_Engg_Blog, 29 January 2019 -

· 30,854 views

low, velocity, flow, pipes

Dear All,

Most of us know that high velocities in pipelines can lead to a plethora of operational and maintenance problems such as noise, vibrations, erosion of pipe material, and a combined erosion-corrosion problem. API RP 14E (now a defunct document), defines a formula for calculating erosional velocities in 2-phase flows mentioning that actual flowin...

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5 Comments

The Easy And True Solution Of Colebrook-White Equations

Posted by Harrell in Harrell's Blog, 14 October 2015 -

· 6,780 views

There are about 6 different equations. Mode 2.51 is… 1/sqrt(f)=-2*Log(Rr/3.7+2.51/(Re*sqrt(f))) Mode 1.74 is… 1/sqrt(f)=1.74-2*Log(2*Rr+18.7/(Re*sqrt(f))) Mode 1.14 is… 1/sqrt(f)=1.14+2*Log(1/Rr)-2*Log(1+(9.3/(Re*Rr*sqrt(f))) Mode 9.35 is… 1/sqrt(f)=1.14-2*Log(Rr+9.35/(Re*sqrt(f))) Mode 3.71 is… 1/sqrt(...

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2 Comments

Fireproofing Standards - The Need And Reasons For Their Existence

Posted by WayneKienbaum in WayneKienbaum's Blog, 19 May 2015 -

· 6,763 views

Just like most other business, the fireproofing business has a code of conduct and some established standards which are mandatory for all the fireproofing companies to follow while conducting their work. These standards are formed, maintained and updated by NFPA , a regulatory body in USA and can be found online on their website .

Most professional compa...

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Depressuring In The Dense Phase

Posted by dhanoag in dhanog's Blog, 04 February 2015 -

· 13,657 views

How to depressure in the supercritical phase using dynamic depressuring utility in Hysys?

Process systems containing large inventories of gas and light hydrocarbon liquids at high pressure have the potential to create a major hazard during a plant upset. To minimize the potential for the creation of a major hazard, blow down valves shall be used for dep...

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2 Comments

Chexpress - December 3, 2014

Posted by ChristaS in ChExpress Blog, 03 December 2014 -

· 8,345 views

kinder morgan inc., petronas and 6 more...

North America

Merger

Kinder Morgan, Inc. has completed its acquisition of the outstanding equity securities of Kinder Morgan Energy Partners, L.P., Kinder Morgan Management, LLC and El Paso Pipeline Partners, L.P. The approximately $76 billion transaction was initially announced earlier this year on August 10. Kinder Morgan, Inc. is the largest energy...

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0 Comments

Mobile Cheresources.com

Posted by Chris Haslego in Community Admin Blog, 28 September 2012 -

· 13,507 views

ipad, iphone, android and 2 more...

So look, most of us are engineers. We're still trying to get our hands around the mobile revolution right? Maybe for some people, it's been easy to leave our desktop or laptop computer behind...but not for us. There's no question that it will be a long time before most engineers can leave their "real" computers behind, and I realize...

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4 Comments

Tank Blanketing Valves

Posted by Ferz99 in Tank Blanketing Valves, 10 September 2012 -

· 13,464 views

tank blanketing and 1 more...

The Tank Blanketing TechniqueÂ Tank blanketing, also known to as tank padding, is the procedure of smearing a gas to the empty space in a storage tank or container (the term storage container refers to any container that is used to store products, regardless of its size). This techinique is used for a variety of reasons and typically involves using a buffer...

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3 Comments

What Is A Piping System

Posted by Zeeshan Amin in Zeeshan Amin's Blog, 28 May 2012 -

· 45,719 views

piping, system

Piping System

A piping system is a network of pipes, fittings and valves intended to perform a specific job i.e. to carry or transfer fluids from one equipment to another. The plumbing network supplying water at your home is a common example of a piping system. Other more rigorous examples include steam piping in a power plant, milk...

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4 Comments

Existing Equipment Strength Verification

Posted by in Mark Roote's Blog, 07 October 2011 -

· 6,994 views

steel plate, baghouse, map

Those of you that have used the spreadsheets created by "psafety" (MAP package 1, MAP package 2) may have run into some...

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1 Comments

Studying Chemical Engineering In Malaysia

Posted by rowanlim in Viewpoint, 01 November 2010 -

· 19,485 views

study, malaysia, chemical and 1 more...

I wrote this entry thinking about Malaysian students coming to the end of their high school life, 17 yr old youngsters who thought "Hey chemical engineering sounds like a good field, but how do I go about it in Malaysia?" This was the question I asked myself 5 yrs ago & I hope to present my view as unbiased as possible & maybe a young...

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6 Comments

Screw Feeder Auger Shafts

Posted by LRS in Lifetime-Reliability Blog, 09 August 2010 -

· 10,741 views

screw, break, shaft, feeder

Analysis of a broken screw feeder shaft on a granular Copper Sulphate Bagging Hopper Feed Screw

Are your screw feeder and trough screw conveyor auger shafts snapping in half? If you have rotating shafts breaking at the centre of the span then you quite likely have a metal...

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2 Comments

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