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- For Safe and Secure Operations
For Safe and Secure Operations
CEPSA is Spain’s second largest oil company, and its refinery in Alegeciras is its largest. This refinery produces all kinds of fuel products, including propane, butane, gasoline, jet fuel, gas-oil and fuel-oil, as well as high-quality petrochemical products such as benzene, toluene and xylene. At its offsite facilities for shipping, receiving and transport, it needs to control a complicated pipeline network used for moving and mixing crude oil. This network has a total length of 220 kilometers, and is normally involved in carrying out at least 100 jobs (shipping, receiving and transport jobs) at any one time. Accordingly, an integrated, highly reliable system able to solve the various problems that occur in such operations was needed.
Using Yokogawa’s abundant offsite experience, an OMS (Oil Movement and Storage) system was installed. The resulting benefits include the following.
- Improved security monitoring during operations in the offsite area
- Reduction in operational errors that cause product contamination
- Prevention of environmental problems caused by tank overflow and other factors
- Reduction of burdens on operators through automation of operations
Operators can now understand the entire area; and operability has been increased, and safety greatly improved, by functions that can be conducted with a single button. Yokogawa’s control technology has made it possible to increase the efficiency and the safety of operations at the same time.
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Yunnan Dawai Ammonia Co., Ltd. manufactures 500,000 tons of ammonia annually through coal gasification and air separation processes. With this manufacturing method, unlike the more commonly used methods of manufacturing ammonia from natural gas or crude oil, combustion is free of smoke emissions.
On the other hand, the procedures for controlling the coal gasification process are extremely complicated, and adjusting the heat, feed amounts, coal-to-oxygen ratio and steam-to-oxygen ratio is considered quite difficult. However, with the CENTUM CS 3000’s module control function and sequence control function, settings can easily be created for those factors.
The coal gasification process involves a maximum temperature of 1500°C and 40 bars of pressure, so a high level of safety is also required. If an accident were to occur, the effects on the surrounding area would be enormous, and the environmental damage incalculable. Countering such risk, the CENTUM CS 3000’s reliability and ease of use are making an enormous contribution to the plant’s safety.
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Toronto Pearson International Airport is located in a million-person city in eastern Canada and near eight US states. In 2003, it shared the same power network with the surrounding area, and was troubled by frequent power outages caused by shortages of electricity. This was an extremely serious problem. It meant that the airport couldn’t reliably fulfill its function as a public facility, and that its very ability to ensure the safety of air traffic was at risk. What was clearly needed was a safe, reliable, independent source of electricity available 24 hours a day, year-round, without interruption.
As a result of considering both reliability and cost performance, a gas turbine cogeneration power plant from General Electric was selected. Yokogawa took charge of the plant’s monitoring and control system.
Thanks to the new plant, it became possible to provide this international airport, an important part of the surrounding social infrastructure, with a stable supply of electricity, and airport safety and security have improved as well. Moreover, by effectively using the heat obtained from the plant’s power generation and supplying the regional power network with any surplus power produced, the plant is playing a major role in conserving energy and reducing environmental burdens.
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Success Stories - Greater Toronto Airports Authority (GTAA), Canada
The Malaysia International Shipping Corp. is Malaysia’s largest maritime shipping company, and has ships exclusively used for carrying LNG (liquid natural gas). Until recently, for their operation and their cargo monitoring and control system, MISC used antiquated panel instrumentation and programmable logic controllers (PLCs). To extend the life of the ships, it was necessary to replace this system. The boiler control was also outdated and inefficient.
If something happens to a ship after it has left port and is alone at sea, the danger is greater than near land. Moreover, systems have to perform effectively in a unique installation environment subject to, among other things, irregular movements caused by wind and waves and fluctuations in a power source dependent on the boilers. Installing Yokogawa’s CENTUM CS 3000 improved the visibility of information and made it possible to predict changes and promptly deal with them. Moreover, the system itself is highly reliable, thereby increasing the safety of the ships and improving the punctuality of operations and the fuel efficiency of the boilers.
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Success Stories - Malaysia International Shipping Corp. (MISC), Malaysia
