Every day, around 200 loaded railcars and several hundred tank trucks leave the refinery in Ingolstadt, Germany, en route to important transshipment points. They carry heavy heating oil, diesel and gasoline to major fuel depots in Germany and neighbouring countries. While railcar loading systems had been modernised from time to time in the past, the loading technology for truck handling was now out of date. “It actually dated from the 1980s,” reports Erich Kuttenreich, Head of Loading and Inventory Accounting at Gunvor. Parts were no longer available for the loading master that controlled the pumps and valves.
For this reason, Gunvor drew up a plan for replacing the field equipment, which consisted of the loading master plus the equipment in the loading tracks. The key challenge here was that all modernisation work had to take place with no overall downtime. One by one, the twelve loading bays for tank truck loading were to be taken offline, fitted with new equipment and then brought back online, to ensure loading was possible at a minimum of eleven platforms at all times.
Software change was out of the question
Although most of the hardware would be replaced, there was never any question of replacing the shipping software. “OpenTAS was specified from the beginning,” says Kuttenreich. Gunvor uses one of the most feature-rich OpenTAS deployments worldwide. The software, which integrates the technical field equipment with the Enterprise Resource Planning (ERP) system, handles tasks including calculating net refinery production, loading control for tank trucks and railcars, and processing tax calculations both with and without an Excise Movement and Control System (EMCS). The tank terminal in Passau is also connected to OpenTAS.
If all systems in a refinery are considered, then the terminal management system is typically a third-level system, positioned directly above the controller that controls the field equipment at the first level. “We used to have an additional level, however,” says Salman Afsar, Project Engineer and Project Manager at Gunvor. “Because the Loading Master was so old, we had to deploy another computer to ensure that it was even able to communicate with OpenTAS.” After the replacement work, this extra level was no longer necessary.
Green light for hardware upgrading
In January 2016, all preparations were complete and hardware replacement work could start. While Actemium was responsible for the control and automation systems, as well as installation work, Implico was responsible for integrating the equipment with the software. Gunvor had set up a dedicated building on the refinery grounds for the new systems to avoid any disruptions to ongoing operations with the old system. As a first step, Implico’s downstream experts installed a new OpenTAS system to work alongside the existing one.
One by one, the company then decoupled the loading bays from the old system software and reconfigured them to work with the new system after replacement of the equipment at the platforms. “We also took the opportunity to replace the old interfaces,” says Volkmar Lindner-Billiau, Senior Consultant, Oil and Gas at Implico. “They were difficult to monitor. Gunvor now uses the latest XML format for data exchange with the lower technical level and will benefit from smooth and seamless data communications in the long run.”
Quality assured with multiple test systems
To avoid unpleasant surprises, Implico deployed three separate systems for the duration of the project: the production system that actually controlled loading; a development system on which the company’s developers worked and could test all of the process flows before deploying them to production; and an acceptance system. This last system was connected via an interface to Actemium’s development system in Frankfurt, and ensured compatibility between hardware and software components.
Lindner-Billiau comments: “Both of these additional systems were very helpful because we were able to test the nuts and bolts of every function before it went into the production system. This ensured the high quality of the final system.” The tests comprised dry tests as well as wet tests: while the software ran through theoretical cases in the dry tests, the wet tests actually involved real-world loading work. A forwarding agent provided a driver and vehicle for these tests. This allowed Gunvor to test tank truck loading under real conditions.
For the conversion of the first two loading bays, Implico’s consultants were on-site to support the new system integration. For subsequent platforms, only configuration work was required – most of which the company completed remotely from Hamburg. “Whenever we needed support, the team from Implico was always there for us,” says Kuttenreich. “Support was available around the clock and always managed to clarify problems then and there. I never had any occasion to worry about things going wrong.”
As part of upgrading, OpenTAS now also handles additional tasks: apart from load control, the software now also manages entrance and exit scales for Gunvor, as well as the exit terminal.
Tank truck loading fit for the future
The hardware upgrade went entirely to the Gunvor team’s satisfaction. “We’ve now put together a platform that means we are very well-prepared for the future,” says Kuttenreich. “The conversions went very well and had virtually no impact on the rest of our business. To wrap this up inside a year is really a job well done.”
Salman Afsar adds: “Today we can get an on-screen visualisation of the current situation in the loading department. This means our colleagues in shipping can now respond more quickly if they need to. For us, these are important and significant improvements.”
Since refineries are virtually unable to use products or pricing as differentiators, customer satisfaction is particularly important for Gunvor – i.e. the satisfaction of the forwarding agents and drivers who pick up the goods in Ingolstadt. “Here, OpenTAS is an immense help in ensuring that we can offer our business partners a quality service – because rapid data communications mean that the right information is always to hand, for example,” says Kuttenreich. Gunvor has set up a system where drivers can use a red, yellow or green smiley to rate their loading experience. The ever-increasing proportion of green smileys shows that Gunvor’s field equipment modernisation project was the right decision in every sense.
Read the article online at: https://www.hydrocarbonengineering.com/refining/17052018/implico-completes-conversion-project-at-ingolstadt-refinery/