| 摘要 |
<p>The invention relates to a process for the production of dimethyl ether by feeding synthesis gas in a reactor with a catalyst composition and withdrawing a dimethyl ether-containing effluent wherein carbon dioxide obtained from the reactor effluent is recycled to the reactor. Preferably synthesis gas containing 1.5 - 2.5 moles of hydrogen per mole of carbon monoxide is fed into a reactor containing a catalyst composition comprising a methanol synthesis catalyst and a dehydration catalyst and dimethyl ether and water are separated from the effluent stream. The reaction proceeds under such conditions that substantially only water and no carbon dioxide is rejected.</p> |
