Sunday, June 30, 2013

Repost of an OTS Tip: Internal Phases Free Water

OTS Tip: Internal Phases Free Water
Guest Blogger: Kalpana Garigipati, Senior Consultant -EECOTS, Invensys Operations Management

This Tip is about “Speed improvement and better Flash stability in models where FREE_WATER internal phases are used”

Friday, June 28, 2013

Quick Poll - Are you planning on coming to the SimSci user meeting in Dallas, TX? October 15-17, 2013

From RefinerLink.com: 10 Steps for Refinery Startup Readiness (By Steve Pagani)

This is a very good article, and I believe illustrate the importance of OTS at a refinery. 
"The most critical and dangerous aspect of refinery operations is unit startup. Safe and seamless unit startup requires all refinery disciplines to work cooperatively.

Thursday, June 27, 2013

Are you operating as sub-optimal conditions

The global economy and regional regulations are placing greater economic pressures on refiners in the form of increased pricing pressure that affect profitability and require enhanced performance to allow the plant to remain profitable. Additionally, regulatory compliance and adherence to increasing stringent safety standards can adversely affect a refinery’s bottom line. Decreased margin from increased competition is forcing refiners to evaluate means to run more profitably. Refineries have been implementing profit generating activities for years, but the key is implementation and sustainability of a full-scale optimization program.

User Added Subroutine (UAS) in PRO/II

What is needed to make a User Added Subroutine(UAS)?
1)  UAS/PDTS version of PRO/II
2)  Fortran compiler appropriate for your

Wednesday, June 26, 2013

Tuesday, June 25, 2013

Whitepaper on Processing Heavy and Extra Heavy Oils

Whitepaper on Processing Heavy and Extra Heavy Oils

From Refinerlink.com: Refinery Alkylation Basics

I thought this was a great article on the basics of alkylation in a refinery:
Many refiners treat Alkylation like a black box, but it’s actually a fairly straight forward process. I’ll break down some of the reaction fundamentals to explain the importance of key parameters.    read the full content here

Monday, June 24, 2013

Compressibility factor (Z) calculation in PRO/II

How is the compressibility factor (Z) calculated in PRO/II?

There are two calculations for the compressibility factor Z.  Both can be found in PRO/II output reports, but only one has any physical meaning.  The Z from density calculation is:

Saturday, June 22, 2013

PRO/II and solid-liquid equilibria

How does PRO/II compute and use solid-liquid equilibria?

Van't Hoff  (ideal ) assumes ideal solution in liquid phase to compute

Friday, June 21, 2013

Interested in presenting at the SimSci User Meeting?


The SimSci User Group Meetings will be Oct 15-17 in Dallas, and as usual, we are looking for customers to present 

Aligning Business and Manufacturing Objectives: A Quick Guide from Automation.com

By Mark Davidson 
Largely due to the misalignment of goals and objectives, a considerable number of organizations struggle to realize the full business value that manufacturing can generate.

Thursday, June 20, 2013

Beer and Simulation at WUTAB


Are you going to the WUTAB Conference in Santa Rosa, CA next week?

Come have a beer with Invensys at our WUTAB hospitality suite and get acquainted with some of the finest operator training tools and the Invensys OTS team that delivers them!



From Hydrocarbon Processing: Imperial Oil to shift Nova Scotia refinery to terminal after no buyer found

The company began shopping the refinery around in May of last year, saying competition in the area had led to weak financial returns. Imperial Oil said the failure to find a buyer illustrates "the challenges

Tuesday, June 18, 2013

Vapor phase determined in VLLE calculations for DEWPT flashes in PRO/II

How is the vapor phase determined in VLLE calculations for DEWPT flashes?

One vapor is calculated for each liquid phase and the vapors are combined to one vapor phase.

The VLLE flash (no matter if dew-point or bubble-point or any other type)

Contest winners

Congrats to our contest winners - it seems like DYNSIM is a popular product!
You can still contact me for copies of the white paper - until Wednesday!

Emerge a Winner in the Refining Industry


Monday, June 17, 2013

Acceleration methods available in PRO/II

What are the differences between the different acceleration methods?
- The default solution method for recycle is

Interested in presenting at the SimSci User Meeting?


The SimSci User Group Meetings will be Oct 15-17 in Dallas, and as usual, we are looking for customers to present 

Friday, June 14, 2013

Yield Accounting at a refinery

Operating companies require reconciled material balance information to make operating decisions and to measure performance and profitability. This is problematic because a material balance on a refinery requires

Thursday, June 13, 2013

Are you operating as sub-optimal conditions

The global economy and regional regulations are placing greater economic pressures on refiners in the form of increased pricing pressure that affect profitability and require enhanced performance to allow the plant to remain profitable. Additionally, regulatory compliance and adherence to increasing stringent safety standards can adversely affect a refinery’s bottom line. Decreased margin from increased competition is forcing refiners to evaluate means to run more profitably. Refineries have been implementing profit generating activities for years, but the key is implementation and sustainability of a full-scale optimization program.

Call for papers: Interested in presenting at the SimSci User Meeting?


The SimSci User Group Meetings will be Oct 15-17 in Dallas, and as usual, we are looking for customers to present 

Tuesday, June 11, 2013

From Control Engineering: Beyond Automation: Humans As Process Controllers

While Automated Control Systems Can Keep Our Manufacturing Processes Running Efficiently, New Variables Are Entering Into The Production Equation That Are Beyond What We Can Expect From PID. In An Interview, Peter Martin Explains Forces Pushing A Return To Humans As Controllers To Accommodate These Changes, At Least For A While. See the video and read the whole post

Do you agree that automatic control is much more beneficial than manual control?

SimSci Training Courses

SimSci Training Courses

SimSci is an Invensys solution that offers applications to give your plant a competitive edge in today’s global economy.  SimSci offers integrated simulation, optimization, training, and process control software and services. For over 45 years, these applications have been improving profitability and performance in plants across the globe.

If you have decided to use SimSci products but you do not where to begin, Invensys Operations Management is now offering training courses. These courses will provide the necessary guidance to use SimSci applications that will allow your plant to reach its full potential and maximize performance and profitability. 

New to SimSci products?  Are you looking to refresh your skills?  Update your skills?

Join us worldwide for a SimSci training course.

To register for the upcoming training course visit http://iomtraining.invensys.com/simsci/public

Monday, June 10, 2013

Contest winners

Congrats to our contest winners - it seems like DYNSIM is a popular product!

Reference Equations of State, Custody Transfer provided by NIST Standard Reference Database 23: REFPROP Version 9.1

Guest Blogger John Cunningham, SimSci Technical Support

With Version 9 of PRO/II, a new Thermodynamic option of special interest to those working with LNG, Natural Gas or refrigerants was added to the slate of Thermo Methods available in PRO/II. This method is The National Institute of Standards and Technology (NIST) Standard Reference Database 23 or REFPROP.

Sunday, June 9, 2013

Refinery Performance Webinar recordings now available for viewing

Invensys frequently offers live webinars to help viewers gain a better understanding of our solutions.These webinar recordings are now available for you to view on-demand.

This webinar series introduces ways to optimize performance in a refinery. The following webinars address two major issues in today’s refineries.

Saturday, June 8, 2013

Customizing the PRO/II Toolbar

The Toolbar in PRO/II allows the user to access key data entry windows and other program features quickly and easily. The user can configure the Toolbar to increase or reduce the number of items displayed, or to change the order in which items are displayed to suit personal preference.

Friday, June 7, 2013

From DOWNSTREAMTODAY: Total CEO Sees More European Refineries Closing in Coming Years

More European refineries, including some in France, are likely to shut down in the coming years, as refined-oil products consumption is falling in the region, Total SA (TOT, FP.FR) Chairman and Chief Executive Christophe de Margerie said Sunday read the full story here

What do you think?
Will your refinery close?
If so, why? Are margins not good enough?

Thursday, June 6, 2013

Podcast: Purdue Prof Digs Berkeley Prof’s Message about the Cloud | Automation World

Interesting post about the cloud. Where do you want to see the cloud fitting in with simulation software? Would your company want to host their own cloud, or would the allow someone else to host it?

Podcast: Purdue Prof Digs Berkeley Prof’s Message about the Cloud | Automation World

REPOST: What is assay knowledge management?

Guest Blogger, Emma Price, Customer Relationship Manager for Spiral Software
Spiral was founded with a vision to transform the oil industry’s use of software, helping to maximise the value of every drop of crude oil. The inspiration behind this was twofold.
Firstly, the evolving industry context creates new challenges and opportunities. Refiners are seeing a more diverse feedstock market than ever before—diverse in both quality and pricing. There are now many crude oils available which present some processing challenges in return for a discounted market price. At the same time, product specifications are becoming more stringent and legislation is tightening around safer operational limits. Put together, this makes a confident understanding of feedstock refining behaviour more important than it has ever been.
Secondly, the new capabilities of information technology enable effective collaboration, even across huge global organisations. It is perfectly realistic to gather real-time information from operating sites and provide meaningful analytics that help users collaborate to make the best possible decisions. This is the step from looking at assay data as simply a set of laboratory measurements to seeing it as “assay knowledge”: bringing together assay measurement with operational data, refinery models, past experience, market information and even news feeds.
This is what we mean by “assay knowledge management” and since 1998, our tools span this whole space: from traditional implementations at laboratories that help them validate and work-up assay data, through to oil major implementations with over 2,500 users in a single enterprise, spanning every area of the business, across upstream exploration, feedstock trading, strategy and operations.
This pushes well outside the bounds of legacy assay management software. For example, some of the largest commodity trading companies use our tools to run thousands of cases to understand how markets would react to feedstock and refining capacity changes. In parallel, engineering and consulting companies use our tools to analyse strategic investments, understanding the future value and risk of capital investments and green field developments.

Wednesday, June 5, 2013

What are the current versions of your SimSci software?

Want to know what the current release of your favorite SimSci software is?


Click here to vist the blog - look in the upper left hand corner of the blog where the current versions will always be listed!

As always, feel free to reach out to your local technical support team for more information.

Join SimSci-Esscor related groups on LinkedIn

Join SimSci  related groups on LinkedIn

Tuesday, June 4, 2013

SimSci Training Courses

SimSci Training Courses

SimSci is an Invensys solution that offers applications to give your plant a competitive edge in today’s global economy.  SimSci offers integrated simulation, optimization, training, and process control software and services. For over 45 years, these applications have been improving profitability and performance in plants across the globe.

If you have decided to use SimSci products but you do not where to begin, Invensys Operations Management is now offering training courses. These courses will provide the necessary guidance to use SimSci applications that will allow your plant to reach its full potential and maximize performance and profitability. 


New to SimSci products?  Are you looking to refresh your skills?  Update your skills?



Join us worldwide for a SimSci training course.

To register for the upcoming training course visit http://iomtraining.invensys.com/simsci/public

Predicting Transport Properties for Aqueous Electrolyte Streams

Guest Blogger John Cunningham, SimSci Technical Support
The default transport Property methods in SimSci software are essentially an assortment of mixing rules for the transport properties stored for each component in the library.


Monday, June 3, 2013

New contest: SimSci-Esscor Pens, Mousepads, and USB drives

SimSci-Esscor Pens, Mousepads, and 4GB USB drives are available now!

All you have to do is comment on this blog the one thing that you love most about the SimSci-Esscor software that you use, whether it is PRO/II, DYNSIM, ROMeo, or any of our other process engineering software.

Intrinsic functions in the PRO/II CALCULATOR

How are intrinsic functions in the PRO/II CALCULATOR used?
Calculator intrinsic functions allow the user access to stream information in the PRO/II code.  This is an easy way for the user