Intermediate storage

Thus the designed catalysts included in artificial photosynthetic systems should involve three complementary functions (1) The catalyst should activate the substrate toward the specific chemical transformation (2) the catalyst should act as a multielectron charge storage intermediate, and (3) the catalyst should induce selectivity and specificity toward the designed photosynthetic process. Nature has resolved these catalytic requisites by... 

In order to make maximum use of core storage ), intermediates generated from the target molecule are internally represented in LHASA by the physical differences between the connectivity tables of the target structure and the intermediate. 

Figure 8.9 Time-event chart for Example 4.4 with intermediate storage.

Introducing intermediate storage between batch steps. 

Whether parallel operations, larger or smaller items of equipment, and intermediate storage should be used can only be judged on the basis of economic tradeoffs. However, this is still not the complete picture as far as the batch process tradeoffs are concerned. So far the batch size has not been varied. Batch size can be varied as a function of cycle time. Overall, the variables are... 

Install enough intermediate storage to allow reworking of off-specification material. 

Allowing enough intermediate storage to rework ofT-specification material. 

Batch processes can be synthesized by first synthesizing a continuous process and then converting it to batch operation. A Gantt (time-event) diagram can be used to identify the scope for improved equipment utilization and the need for intermediate storage. 

Fig. 6. A fault tree for the pumped storage example of Figure 5. For a real system the tank and pump failures would be more precisely defined, or set as intermediate events having further definition by subsequent basic events and more detailed failure modes.

When nickel hydroxide is oxidized at the nickel electrode in alkaline storage batteries the black trivalent gelatinous nickel hydroxide oxide [12026-04-9], Ni(0H)0, is formed. In nickel battery technology, nickel hydroxide oxide is known as the nickel active mass (see Batteries, secondary cells). Nickel hydroxide nitrate [56171-41-6], Ni(0H)N02, and nickel chloride hydroxide [25965-88-2], NiCl(OH), are frequently mentioned as intermediates for the production of nickel powder in aqueous solution. The binding energies for these compounds have been studied (55). 

Aluminum alkoxides are easily soluble in hydrocarbons and in chlorinated hydrocarbons, but sparingly soluble in alcohols. They are sensitive to moisture and dry storage is essential. Aluminum alkoxides are used extensively as intermediates, for example, in the Meerwein-Poimdorf reaction (94). 

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