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Process using microchannel technology for conducting alkylation or acylation reaction

A microchannel, reactant technology, applied in chemical/physical/physical-chemical reactors, chemical instruments and methods, carbon compound catalysts, etc., can solve problems such as expensive downstream purification procedures, achieve reduction of unfavorable coking, efficient mixing, Highly selective effect

Inactive Publication Date: 2008-02-20
VELOCYS CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, expensive downstream purification procedures are often required

Method used

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  • Process using microchannel technology for conducting alkylation or acylation reaction
  • Process using microchannel technology for conducting alkylation or acylation reaction
  • Process using microchannel technology for conducting alkylation or acylation reaction

Examples

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Embodiment

[0184] A process microchannel with a height of 2 mm, a width of 25.4 mm and a length of 30.5 cm had a ZSM-5 zeolite catalyst layer with a coating of 0.25 micron thickness on the inner wall of the catalyst layer. A benzene and ethylene premixed feed containing 1 mole of ethylene for every 2 moles of benzene flows through the process microchannels. The temperature of the feed mixture at the inlet was 500°C. At airspeeds over about 10,000hr -1 Under the operating process microchannel, the total ethylbenzene production is estimated to be about 99%.

[0185] In one embodiment, the catalyst can be regenerated. This catalyst regeneration may be performed by passing a regeneration fluid through process microchannels (210, 310, 410) to contact the catalyst. The regeneration fluid may comprise hydrogen or a stream of diluted hydrogen. Diluents may include nitrogen, argon, steam, methane, carbon dioxide, or mixtures of two or more thereof. H in regeneration fluid 2 The concentratio...

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Abstract

The disclosed invention relates to a process, comprising: flowing a first reactant feed stream comprising a reactant substrate and a second reactant feed stream comprising an alkylating agent, an acylating agent or a mixture thereof, in a process microchannel in contact with each other to form a product comprising at least one alkylation product, at least one acylation product, or a mixture thereof; transferring heat from the process microchannel to a heat sink; and removing the product from the process microchannel.

Description

[0001] Pursuant to 35 U.S.C. §119(e), this application claims the benefit of U.S. Provisional Application 60 / 627,269, filed November 12, 2004, U.S. Provisional Application 60 / 697,900, filed July 8, 2005, filed in 2005 US provisional application 60,727,126, filed October 13, priority of US provisional application 60,731,596, filed October 27, 2005. The entire disclosures of these prior applications are incorporated herein by reference. technical field [0002] The invention relates to a method for carrying out an alkylation or acylation reaction in a microchannel reactor. Background technique [0003] Alkylation is the reaction of adding an alkyl or alkenyl group to a compound. Acylation is the reaction in which an acyl group is added to a compound. Although alkylations are often referred to as acid-catalyzed Friedel-Crafts-type reactions, they can also involve the production of alkylates under refining conditions. These methods are beneficial for the synthesis of fine and...

Claims

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Application Information

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IPC IPC(8): B01J19/00
CPCC07C209/68B01J2219/00837B01J38/10B01J2219/00826C07C37/14B01J2219/0086B01J2219/00828C07C2/70B01J2219/00831B01J2219/00905C07C2529/40B01J2219/00891B01F13/0059B01J2219/00833B01F5/0475B01J19/0093B01J2219/00835B01J2219/00889B01J2219/00822B01J2219/00783B01J2219/00873C07C2/66B01J29/40B01J2219/00844B01J37/0225Y02P20/584Y02P20/582Y02P20/10B01F25/3142B01F33/30C07C15/073C07C211/46C07C211/47C07C211/50C07C211/51C07C39/06C07C39/07
Inventor 安娜·利·通科维奇史蒂文·T·佩里蒂莫西·J·拉普兰特卡伊·托德·保罗·雅罗施托马斯·P·希基肖恩·帕特里克·菲茨杰拉德邱东明拉维·阿罗拉蒂莫西·J·沙利文保罗·尼格尔
Owner VELOCYS CORPORATION
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