By Joachim Rauch
Within the chemical undefined, simply in time supply and ever extra effective techniques are major requirements for competitiveness. excessive finish items require a large product variety leading to reduce amounts of every unmarried product. the reply to the matter are multiproduct crops designed to satisfy altering specifications. Already at layout degree, varied power specifications are considered permitting technical gear to be put in based on the specified product. Reconfiguration could be completed fast via trade of available parts with out expensive refitting ot the whole plant. this is often the 1st finished resource of knowledge in this smooth subject, treating different ideas recognized for multiproduct crops, their technical recognition, attainable makes use of for the construction of chemical compounds, the alternative of the development fabrics, in addition to defense issues.
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Additional resources for Multiproduct Plants
19]. There are commercially available systems for the technical setup of this concept; these range from manually operated rapid-action couplings for pipes and pipeline adapters (see Fig. 17) to automatic manifolds. Fig. 18 shows such an automatic, piggable manifold with twelve inlets and four outlets. To circumvent the inherent danger of confusion between the different lines, interlocking systems 37 38 3 Concepts Fig. 16 Multiproduct plant with pipeline manifolds Fig. 17 Pipeline manifold with adapters.
Reaction stations, with the facilities required for carrying out reactions, are being developed at the moment. Examples are: · · · · Agitation units Heating/cooling circulation units Safety units for release of pressure Dosing systems for reactants Developing technical concepts and detailed solutions to extend the use of pipeless plants to the chemical industry is an interesting new area of endeavor. In this context it should also be clarified to what extent the available technical regulations are suitable for the authorization of a plant of this type.
27 “Turbulent” reactor. Reproduced with kind permission of Drais · For extremely viscous products, both of the previous shovel-drier types were, despite all adaptations, only of limited use: their drives do not have enough power · Highly viscous products tend to be adhesive; in the previously discussed types this leads to parts of the product sticking to the shafts, thereby not participating in the actual process · With both of the two previously mentioned types of apparatus, the heat-transfer surfaces are generally limited to the casing of the apparatus.
Multiproduct Plants by Joachim Rauch