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US 10,577,292 B2Granted
Hydrocarbon conversion
AssigneeExxonMobil Chemical Patents Inc.
InventorsChangmin Chun, Dhaval A. Bhandari, Federico Barrai
Life of this patent
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Abstract
The invention relates to hydrocarbon conversion, to equipment and materials useful for hydrocarbon conversion, and to processes for carrying out hydrocarbon conversion, e.g., hydrocarbon pyrolysis processes. The hydrocarbon conversion is carried out in a reactor which includes at least one channeled member that comprises refractory and has an open frontal area ≤55%. The refractory can include non-oxide ceramic.
Claims20
A hydrocarbon conversion process, comprising:
- (a) providing a feed comprising hydrocarbon;
- (b) providing a channeled member that incudes opposed first and second apertures and at least one internal channel, wherein
- (i) the second aperture is separated from the first aperture by a flow-path through the channel,
- (ii) the channeled member has an open frontal area (OFA) ≤55%,
- (iii) the channeled member comprises a refractory which includes one or more of a first ceramic comprising at least one compound represented by the formula Mn+1AXn, a second ceramic comprising at least one compound represented by the formula NiBj, and a third ceramic comprising at least one compound represented by the formula PkQm, and
- (iv) M is at least one element selected from Groups 3-6 of the Periodic Table;
- A is at least one element selected from Groups 13-16 of the Periodic Table;
- X is carbon and/or nitrogen;
- N is at least one element selected from Groups 4 and 5 of the Periodic Table;
- B is boron;
- P is at least one element selected from Groups 4-10 of the Periodic Table;
- Q is silicon and/or aluminum;
- n is 1, 2, or 3;
- i and k are each a positive integer;
- j is i+1 or i+2;
- and m is a positive integer that can be greater than k, less than k, or equal to k;
- (c) providing a flow-through reactor having opposed first and second openings and an internal volume, wherein (i) the internal volume includes the channeled member, (ii) the first opening is adjacent to the first aperture, and (iii) the first and second openings are in fluidic communication through the flow path;
- (d) during a heating time tH, heating the channeled member to achieve an average temperature (Tav) in the range of from 500° C. to 1400° C., and a peak temperature (Tp), wherein Tp is >Tav;
- and
- (e) during a reaction time tR,
- (i) establishing a flow of the feed from the first opening, through the first aperture, and into the internal channel;
- (ii) reacting the feed in the channel, wherein Tav decreases by no more than 100° C. during tR;
- and
- (iii) conducting a flow of a reaction product out of the channel, through the second aperture, and away from the reactor via the second opening.
21 more elements
Dependencies are inferred from the claim text.