Sentence examples for chemical operation from inspiring English sources

And taking the farm as a whole, the food output per acre from a well-run mixed farm was often higher than today's intensive chemical operation.

Meanwhile, Exxon's chemical operation has outshone even pure chemicals firms like BASF with return on capital of around 26 percent in 2010, according to Exxon, against BASF's 13 percent, as calculated by Morningstar.

But the dozens of damning internal Trafigura emails which have now come to light reveal how traders were told in advance that their planned chemical operation, a cheap and dirty process called "caustic washing", generated such dangerous wastes that it was widely outlawed in the west.

Since this methodology, in its standard form, does not account for chemical operation inside those units, only a few process streams can be used for the creation of the heat exchanger network.

For example, the use of solvents, which consistently account for approximately 80 90% of the materials used in a typical pharmaceutical batch chemical operation [14], may play a dominant role in the overall toxicity of any given manufacturing process, resulting in excess and potentially hazardous waste.

These finite horizon process operations include chemical process operations such as start-ups, grade transitions, shut-dovnls, and of course batch, semi-batch and periodic processes.

The method presented is very useful for decision-makers in order to evaluate the inclusion of new technologies to improve the chemical process operation and topological designs.

It integrates the main components in chemical process operation to help students to adopt a 'systems approach' to engineering problem solving.

Overall, this paper demonstrates how fundamental optimization principles can be used systematically and reliably to find optimum operating conditions for complex chemical process operations.

Earnings at chemical operations grew 12percentt, also on better margins.

Stahl's experimental expertise is shown in the richness of his ingenious chemical operations on oils, salts, acids, and metals.