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Design Safer Solids Processing Plants

By Shrikant Dhodapkar, Konanur Manjunath & Pradeep Jain, The Dow Chemical Company |

    Chemicals, plastics, pharmaceutical, food, agricultural chemicals, coal and bio-chemical industries have a wide array of processes where the raw materials, intermediates and products are in particulate form. Hazards associated with particulate solids are unique, and in most cases depend on the particle size. The purpose of this paper is to present a systematic framework for designing particulate processes with appropriate pointers towards relevant sources in the public domain. We hope to raise safety awareness among chemical engineers dealing with particulate solids. It is not possible to design and operate a process safely and reliably unless the equipment suppliers, design team and plant personnel are aware of the potential hazards. Hazard awareness should include material properties, process design and operational issues. The readers are strongly encouraged to read relevant references cited in this article.   Background Through dedicated efforts of the larger process safety community, a tremendous body of useful technical information has been compiled in various handbooks and publications [1–12]. These guidelines are based on current state of knowledge and vast industrial experience in handling and processing…
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