Carbon monoxide phase diagram

Figure 2.14. The molecular orbitals of gas phase carbon monoxide, (a) Energy diagram indicating how the molecular orbitals arise from the combination of atomic orbitals of carbon (C) and oxygen (O). Conventional arrows are used to indicate the spin orientations of electrons in the occupied orbitals. Asterisks denote antibonding molecular orbitals, (b) Spatial distributions of key orbitals involved in the chemisorption of carbon monoxide. Barring indicates empty orbitals.5 (c) Electronic configurations of CO and NO in vacuum as compared to the density of states of a Pt(lll) cluster.11 Reprinted from ref. 11 with permission from Elsevier Science.

As a case study an acetic acid process has been given. Acetic acid is produced by a liquid-phase methanol carbonylation. Acetic acid is formed by the reaction between methanol and carbon monoxide which is catalysed by rhodium iodocarbonyl catalyst. The process diagram is shown in Figure 7. 

Carbon Monoxide. There are close similarities between carbon monoxide and nitrogen. The molecules are isoelectronic, and the bond lengths and dissociation energies are quite comparable. The phase diagrams of the two compounds show the same trends in the moderate pressure range with a variety of phase transitions between essentially alike crystal structures [333], when allowance is made for the lack of the inversion center and the presence of a weak electric dipole moment in carbon monoxide. However, the behavior and stability at higher... 

Figure 2 Carbon monoxide adsorption in silicalite-I (a) net enthalpies and isotherm at 77K, (b) Clapeyron phase diagram.

Figure 7.15 Phase III Features of Interest Spider Diagram for carbon monoxide...

Figure 3.34 C-H-O phase diagram for a mixture of 75 vol.% hydrogen, 15 vol.% carbon monoxide, the balance being carbon dioxide the boundary for carbon deposition is indicated by the straight line (o) composition of natural gas reformate ) composition of water-free natural gas reformate [120],...

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