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US 10,093,593 B2Granted
Use of catalyst to adjust product distributions in MTO process
AssigneeUop LLC
InventorsGregory A. Funk, Andrea G. Bozzano, Nicholas J. Schoenfeldt, Thulasidas Chellppannair, Wolfgang A. Spieker, Bipin V. Vora
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Abstract
A process is presented for generating light olefins with the methanol to olefins process from a combination of catalysts. The process controls the product distribution for ethylene, propylene and butylenes, to enable shifting of the product distribution. The process includes passing a second catalyst to a reactor while the process is on-going.
Claims8
A process for the production of light olefins comprising:
- passing a first catalyst feed comprising a first catalyst to an MTO reactor wherein the MTO reactor in a fluidized bed reactor system;
- passing an oxygenate stream to an MTO reactor to generate an effluent stream comprising olefins, and having a propylene to ethylene product distribution, for converting oxygenates to olefins;
- sampling the effluent stream to measure the propylene to ethylene to butylenes product distribution;
- continuing the first catalyst feed to the MTO reactor until a second olefins product distribution is desired;
- discontinuing passing the first catalyst feed to the MTO reactor;
- passing a second catalyst feed comprising a second catalyst to the MTO reactor;
- sampling the effluent stream to measure the propylene to ethylene to butylenes product distribution;
- and
- continuing the second catalyst feed to the MTO reactor until a new propylene to ethylene to butylenes product distribution is achieved.
6 more elements
A process producing olefins in a methanol to olefins conversion process, comprising:
- splitting an oxygenate feed into two portions;
- passing a first portion of the oxygenate feed to a first MTO reactor comprising a first catalyst to generate a first MTO reactor effluent;
- passing a second portion of the oxygenate feed to a second MTO reactor comprising a second catalyst to generate a second MTO reactor effluent;
- combining the first reactor effluent and the second reactor effluent to generate a combined effluent stream;
- sampling the combined effluent stream to measure the propylene to ethylene to butylenes product distribution;
- and
- adjusting the splitting of the oxygenate feed into two portions to further adjust the combined product stream.
4 more elements
Dependencies are inferred from the claim text.