Process for producing propylene
AssigneeMitsubishi Chemical Corporation
InventorsTohru Setoyama, Yumiko Yoshikawa, Kagoto Nakagawa
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Abstract
Propylene is prepared by a process for producing propylene, comprising: contacting a reaction mixture of ethylene and methanol and/or dimethyl ether in the presence of a catalyst while controlling the amount of ethylene that is discharged from the reaction system to a reduced level in comparison to the amount of ethylene that is being fed into the reaction system, and while controlling the yield of propylene to at least 40 mol %, based on the sum of the number of moles of methanol and two times the number of moles of dimethyl ether, which are being fed into the reaction system.
Claims19
A process for producing propylene, which comprises:
- mixing ethylene and methanol and/or dimethyl ether in a mole ratio range of at least 1 to at most 20 moles ethylene to the sum of the number of moles of methanol and two times the number of moles of dimethyl ether;
- and
- reacting ethylene and methanol and/or dimethyl ether of the mixture in the presence of a catalyst, wherein
- the amount of ethylene that is discharged from the reaction system is controlled to a reduced level in comparison to the amount of ethylene that is fed into the reaction system, and
- the yield of propylene is controlled to at least 40 mol %, based on the sum of the number of moles of methanol and two times the number of moles of dimethyl ether, which are fed into the reaction system.
Dependencies are inferred from the claim text.