Methanol hybrid plant

Figure 3 shows the internal profile in the composition tetrahedron after simulation of the hybrid column in Hysys. A loss of about 0.18 % w/w of ethanol in methanol-rich distillate occurs. The side streams are located near the maximum in ethanol (ethanol-rich stream, 88.98 % w/w) and fusel (fusel-rich stream, 18.5 % w/w), respectively. The column has 35 equilibrium stages, a column diameter of 1.372 m, a section pressure drop of 11.8 kPa and a steam flow rate of 1800 kg/h. The vapour ethanol-rich stream is diverted to the first effect of the evaporation sector to provide heating while minimizing the steam demand of the plant. The condensed ethanol-rich stream is then fed to the pervaporation sector to remove the excess water. 

Such complimentary synthesis routes or "HYBRIDS can achieve remarkable reductions in capital cost and expensive biomass carbon utilisation. The methane and wood hybrid to produce methanol from the resulting syn-gas would use 722 nr of natural gas and 0.4 tonne of biomass to produce 1 tonne of methanol at a capital cost of around 10 k /TJ/annum capacity on the 1000 tpd product scale. Though part of the feedstock is then priced at the international oil price (energy equivalent) a plant scale of 3000 tpd operating at 60 per cent efficiency will meet the economic criteria of the simple model used in this paper. 

Petunin ( petunidin 3,5-di-O-glucoside). C2sH330n. Mr 641.56, violet platelets with a copper like gloss (aqueous HCl), mp. 178 °C, uv, a, 540 nm (methanolic HCl). The anthocyanin P. occurs in the grapevine (Vitis rotundifolia, Vitaceae), in the flowers of Petunia hybrids (Solanaceae), in blue grapes (Vitis vinifera, Vitaceae), in bilberries (Vaccinium myrtillus, Ericaceae), and other plants,... 

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