| abstract |
The present invention provides a method for producing methanol or methanol derivatives under substantially stoichiometric conditions using an uncorrected syngas having an R factor of less than 2.0 (R = [(H-CO) / (CO + CO)]). All or part of the uncorrected syngas is fed to the separator unit to recover CO, CO and hydrogen. At least part of any one or a combination of the separated streams with an increased content of CO, CO and hydrogen is added to the remaining syngas that has not undergone such treatment, or, in the absence of a residual uncorrected syngas composition, is combined to obtain a composition-corrected syngas having an R coefficient of 2.0 to 2.9, which is used to produce methanol. Separated CO, not used to control the R-factor of the uncorrected syngas, can be fed to a reformer to increase CO production. At least a portion of the recovered CO is used to react in an acetic acid reactor with at least a portion of the generated methanol to produce acetic acid or an acetic acid precursor in a conventional manner. |