Oxogas

CO-rich gases are used for a number of important petrochemical reactions such as oxo-S5mthesis converting olefins to alcohols and acetic acid. The CO eontent of the s mgas is increased by decreasing the atomic ratio H/C in the feed gas. This is achieved at low H2O/C, use of naphtha instead of natural gas as feedstock, use of partial oxidation, and by addition of CO2 to the feedgas. Most of these measures increase the potential for carbon formation (refer to Chapter 5). 

A naphtha to be used in a CO-rich syngas plant [510] has the following properties  

Initial/final boiling point 36/146°C Specific gravity 0.67 

By use of the method described in Section 1.2.1 the naphtha can be represented by a mixture n-hexane/n-heptane 30/57% cyclohexane 10% and benzene 3%. 

The calculation is carried out by first converting all higher hydrocarbons to CO and H2 and then using the methods in Example 1.1 to calculate the mixture equilibrium composition. 

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Usually, high-purity CO is manufactured on a large scale by means of costly cryogenic separation or absorption from syngas. The above approach could be attractive for small production. Also based on Equations 14 and 15, an easy source of oxogas (C0 H2 = 1 1) can be imagined. Indeed, we could demonstrate that methyl formate and methanol can be used to hydroformylate olefins in good yields and selectivities (37). 

Gemtuzumab-oxoga micin (anti CD33-calicheamicin conjugate) recombinant... 

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