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Unit Restarts: Where to Begin?

By France Chopinet, Dina d.d. Petrokemija, Omišalj |

  The preparation of a unit for restart requires complex and systematic approach. A plant restart project is traditionally composed of four steps: 1. A detailed unit-status evaluation 2. Preparation for onsite work 3. Major onsite work, which involves significant expenses for personnel, supply, equipment renting and contractors 4. Restart of the plant, which focuses on bringing the unit online. Upon completion of this final step, return on investment begins to materialize Engineers and management should spend most of the time and effort in the unit status evaluation (Step 1) and preparation for the onsite work (Step 2) to shorten capital immobilization during the steps that follow. By putting more effort into these steps, you will maximize your return on investment and reduce the payback period of your restart project. In this article, the author targets "call-for-bid” documents. During this project phase, the personnel who are involved in the project and further operation of the unit need to be organized for teamwork.   Financial basis An idle or inactive plant in a refinery or petrochemical plant is to be restarted. Clearly, the management wants to achieve the following: 1. Minimize the cost of this restart 2.…
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The Influence of IIoT in the Dewatering Process Step of Pigment Production

Taking a look at dewatering, an important step at the heart of the colour pigment production process. By using a method for a calcined kaolin pigment as an example, we explain how an intelligent filter press can improve pigment production.

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