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Scalable structuration product

Smooth scale-ups from R D laboratory or bench scale to pilot scale and then to commercial size batch-operated, multi-purpose chemical plants are often not easy to achieve for a variety of reasons, often resulting from compromises due to the need to use existing equipment. The consequences of this lack of scalability can be a reduction in product quality and yield, increased by-product formation, longer cycle times, and, in some cases, an inability to reproduce key product properties such as color, size, or crystal structure. These consequences invariably result in an increased use of mass and energy and a production of greater waste per unit mass of product. [Pg.37]

A new optimisation structure (Fig.2) for the scheduling of operational activities in a real-world pipeline network (Fig.l) has been addressed in this paper. In addition, a new computational procedure was developed, the Pre-Analysis module. The real scenario could be addressed mostly due to Pre-Analysis scalability. The considered scenario is particularly complex and involves more nodes and pipes, compared to the one discussed in a previous work [5]. In order to address this scenario, a decomposition approach was used. This decomposition relied on a Resoince Allocation block, which takes into accoimt production/consumption functions and typical lot sizes to determine a set of candidate sequences of pumping. Furthermore, a Pre-Analysis block uses candidate sequences to determine temporal and volume parameters. These parameters were used in a continuous-time MILP model, which indeed determines the short-term scheduling of each batch in each node of the pipeline network. The implemented structure can be used, for instance, to identify system bottlenecks and to test new operational conditions. Computation time has remained at few CPU seconds. The proposed approach have allowed that a monthly planning of production and consumption be detailed in short-time scheduling operations within the considered pipeline network. Thus, operational insights can be derived from the obtained solutions. As an ongoing research, the Pre-Analysis would be used to determine other parameters for the MILP model. [Pg.264]

The scalable total synthesis of the cytotoxic natural product (+)-FR182877 was accomplished in the laboratory of E.J. Sorensen.The key steps of the synthetis were an intramolecular Tsuji-Trost allylation to prepare the 19-membered macrocyclic pentaene followed by a double transannular DIels-Alder cycloadditlon to obtain the desired pentacyclic structure. The allylic carbonate was exposed to 10 mol% of the Pd-catalyst under high dilution conditions in THF. The new bond between Cl and Cl 9 was formed with complete diastereoselectivity and in good yield, although the configuration at Cl 9 was not determined. [Pg.459]

Structural novelty of the compounds (i.e., can this product be patented ), complexity of synthetic routes, scalability (can the syntheses be scaled up in an industrial way ) and the cost of starting materials (cost of goods at the end of the game), and potential environmental and toxicity issues will all need to be closely examined at early stages of the drug discovery and development processes. It is never too early to put these thoughts into action. [Pg.6]

Dr. Mukund Chorghade then introduces readers to the field of process chemistry the quest for the elucidation of novel, cost-effective, and scalable routes for production of active pharmaceutical ingredients. The medicinal chemistry routes used in the past have often involved the use of cryogenic reactions, unstable intermediates, and hazardous or expensive reagents. A case smdy of the development of a process for an antiepileptic drug is presented readers will also see how problems in the isolation, structure elucidation, and synthesis of metabolites were circumvented. Described is an interesting application of the technology of metalloporphyrins assisted metabolite prediction, estimation, quantitation and synthesis. [Pg.408]

Till date there is no single process available that is capable of generating precise nanoscale features and structures. Research is going on to develop newer techniques for nanofabrication, which will improve the reliability, repeatability, and scalability with much higher productivity. [Pg.8]

Ball et al. [8] added to the research on scalability in ERP, specifically as ERP ties in to supply chain management (SCM) structures. They built a scalable supply chain test-bed that consists of the several distinct but integrated components ERP, SCM, a simulation, middleware, and visualization (see Figure 18.4). In the model, each supplier and customer is assumed to have its own ERP system, but they are linked by common end products and use collaboration techniques in their supply chain. The SCM component integrates all of these ERP instantiations. [Pg.761]

The huge number of different fiber morphologies, structures, and properties that can be achieved by electrospiiming is impressive. The power of this technology is even more evident if we take into account the fact that innovative hybrid nanofibers can be fabricated with a simple, versatile, exbemely cheap, and scalable technology that makes electrospiiming the most interesting currently available technique for the production of nanocomposites. [Pg.132]

Scalability The framework shall be suitable for development of safety-related products of varying complexity, ranging from simple (e.g. contactors) to complex products (e.g. Robots). Also it is desirable to come up with a future-proof structure that can later incorporate other functional safety standards without difficulties (e.g. lEC 62061,180 13849-1, etc.). [Pg.105]


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See also in sourсe #XX -- [ Pg.237 ]




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Scalable structuration

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