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This webinar was presented by Michael Bell, Principal Applications Engineer at NOVA Chemicals of Canada in September 2016. The feed preparation section at NOVA’s Ethylene 1 plant receives and combines feed from a multiple of sources while reducing the feed pressure to prepare for thermal cracking in an ethylene furnace. What is unique in modelling this process is that it has multiple modes of operation. This multi-mode problem fits well with CPM and CVE, which allow for the automatic turning off and on of variables to minimize the number of alerts sent to the panel operator by the setting of the “Phase” variable.

Geometric models are a new class of mathematical model and well-suited to plant applications because of their very low cost due to the speed with which the wholly visual nature of Geometric Process Control (GPC) allows them to be created, implemented and maintained. They have been applied to continuous and batch processes in process industry segments ranging from pharmaceuticals through chemicals to oil refining and upstream oil and gas production. 

PPCL’s mission is to reduce variability in plant operations. This starts with the gaining of better process and operations understanding using our offline product, C Visual Explorer (CVE), to view years of process operation for hundreds of variables in a single interrogable graph. This much wider view than was ever previously available considerably simplifies and accelerates traditional process applications such as process analysis, de-bottlenecking, optimisation, alarm rationalization and KPI target setting and monitoring. Operating Windows found by CVE and expressed as independent Operating Limits on process variables are immediately usable by plant operations as a guide to greater achievement of the business objective.

Operating Envelopes are modelled by our online real-time product, C Process Modeller (CPM), updating on a frequency between seconds and minutes and providing alerts to supplement alarms, guiding operations to stay inside the Operating Envelope and providing early warning of impending events, alerting the process operator to take mitigating action.

Michael offers an invaluable account of NOVA's experience with PPCL tools. The webinar includes a Q&A session with process industry professionals addressing some of the issues which commonly arise when considering and implementing the software.

Phillips 66 talk about their experiences using CVE for Alarm Rationalization in their Bayway, NJ refinery and field questions from users and non-users of CVE. If you are new to using CVE for Alarm Rationalisation you will probably want to start with one of our own Alarm Webinars, but this one is not to be missed. 

This Webinar was delivered in May 2015 by Ian Nimmo, President of UCDS, one of our partners who we have worked with on several projects. Ian discusses in depth the IEC 62682 standard. This webinar gives a wider coverage of the whole of the new Standard from Philosophy Development right through to Implementation.


John Rezabek is a senior control specialist at Ashland ISP, Lima, Ohio. His presentation "Traversing Hyperspace in the n-Cube to Rationalize Alarms" was voted one of the best at the Emerson Exchange 2014 Conference. See what John thought of CVE and the PPCL GPC method after using it for alarm rationalization. 

This webinar exploring operating envelopes was delivered on 9th March 2016. It is Part Two of a two part series, the first of which, "Finding and Using Better Operating Windows" was presented on Wednesday 10th February 2016.

This webinar on finding and using better operating windows was delivered on 10th February 2016. It is Part One of a two part series, the second of which, "From Operating Windows to Operating Envelopes" was presented on Wednesday 9th March 2016.

An Operating Window is a set of Operating Limits or Control Limits intended to give the best achievement of an objective such as yield, throughput, quality, KPI or cost. Traditionally your organization has found values for these Limits one variable at a time using methods such as Statistical Process Control (SPC). You have been able to make one limit consistent with another but it's been very tedious to do for many operating limits and a major task to reset them all and re-establish consistency when the objective changes because one limit has changed or another must-comply KPI has just been introduced. 


And what about all the other sets of limits such as Safety Alarms, Integrity Operating Limits, Operator Alarm Limits and more? How do you avoid conflict with them or even know for sure that you have? In this one hour webinar Dr Robin Brooks, founder and CEO of PPCL, demonstrates a straightforward visual method of quickly finding values at which to set Limits for many variables at once in such a way that they will all be consistent with each other. You can do this for several sets of limits so that you, and everyone else in your company, will be able to see where there could be conflicts before they are implemented in the control room. You can even see how that newly proposed KPI and its limits will perform, and whether you will be able to achieve it to the required level.

Dr Brooks shows you how to combine process variables that you can measure in real-time with measurements such as lab results, yield and efficiency actuals and emission KPI actuals that won't be available until hours or even days later. And at the end he gives a glimpse of how to include variable interaction effects - still without maths - to find the Operating Envelope inside the Window. You can then use it to help the Operator stay inside the Operating Window on all variables all of the time so that you can solve the multi-variate MSPC problem and get one new chart to replace all of your SPC charts.

This fast, powerful, and insightful 'Big Data' method is ideally suited to the highly correlated and non-linear data that is characteristic of process plants as well as to the time constraints of everyone employed in them. And because the method is visual it lends itself very easily to providing graphical images for reports demonstrating achievement, particularly of KPI's.


 
 

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