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Industrial Organic Chemicals (Wittcoff/Organic Chemicals) || Industrial Catalysis

โœ Scribed by Wittcoff, Harold A.; Reuben, Bryan G.; Plotkin, Jeffrey S.


Publisher
John Wiley & Sons, Inc.
Year
2004
Weight
393 KB
Edition
2
Category
Article
ISBN
0471443859

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โœฆ Synopsis


Many of the organic chemicals discussed in the previous chapters were already being made before World War II. They were made by fermentation or from coal by "traditional" organic chemistry in batch processes. The advent of cheap olefinic feedstocks derived from oil and natural gas led to a switch to "hot tube" industrial organic chemistry, that is, to continuous processes that produce hundreds of thousands of tonnes of product per year. The basis for this modern organic chemistry is frequently the "appropriate" catalyst, whose exact nature and formulation is often a closely guarded industrial secret.

In 1966, when catalyst theory was in its infancy, it was estimated that 70% of industrial processes involved catalysis. The percentage is now said to have reached 90%. Catalysis was said in 1999 to be used in the manufacture of more than $3 trillion worth of goods and services. Annual royalties and fees from technology process licensing exceeded $3.5 billion and the global merchant market for catalyst products approached $8.5 billion. About 30% of the US gross national product is generated with the help of catalysis. This chapter is therefore devoted to a brief review of catalyst technology with emphasis on ways in which the concept of a catalyst has changed and on recent trends in the industry. First, we shall discuss the questions of catalyst choice, and second, some of the chemical engineering aspects of catalyst use. Third, comes the markets for catalysts and then a discussion of the different types of catalysts encountered in industry. Table 16.1 shows a summary of catalytic reactions.


๐Ÿ“œ SIMILAR VOLUMES


Industrial Organic Chemicals (Wittcoff/O
โœ Wittcoff, Harold A.; Reuben, Bryan G.; Plotkin, Jeffrey S. ๐Ÿ“‚ Article ๐Ÿ“… 2004 ๐Ÿ› John Wiley & Sons, Inc. โš– 122 KB

Limit of Liability/ Disclaimer of Warranty: While the publisher and author have used their best efforts in preparing this book, they make no representations or warranties with respect to the accuracy or completeness of the contents of this book and specifically disclaim any implied warranties of mer

Industrial Organic Chemicals (Wittcoff/O
โœ Wittcoff, Harold A.; Reuben, Bryan G.; Plotkin, Jeffrey S. ๐Ÿ“‚ Article ๐Ÿ“… 2004 ๐Ÿ› John Wiley & Sons, Inc. โš– 100 KB

Alkanes occur as such in natural gas and petroleum and accordingly are the cheapest raw materials for chemicals. They are the feedstocks for cracking (Sections 2.2.1, 2.2.2) and catalytic reforming (Section 2.2.3). Methane is the main source for synthesis gas (Section 10.4) via steam reforming. The

Industrial Organic Chemicals (Wittcoff/O
โœ Wittcoff, Harold A.; Reuben, Bryan G.; Plotkin, Jeffrey S. ๐Ÿ“‚ Article ๐Ÿ“… 2004 ๐Ÿ› John Wiley & Sons, Inc. โš– 115 KB

We have described the derivation of chemicals from petroleum and natural gas. But between 5 and 10% of organic chemicals come from other sources-coal, fats, oils, and carbohydrates. Historically, these sources are important because it was from them that the modern chemical industry evolved. Their pr