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Apparatus and method to produce isooctane by indirect alkylation technique

An alkylation and isooctane technology, applied in chemical instruments and methods, chemical industry, organic chemistry, etc., can solve the problems of unacceptable additions, high value-added products that can no longer be used, and industrial chain interruptions.

Pending Publication Date: 2018-03-23
KAIRUI ENVIRONMENTAL PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] On September 7, 2017, my country issued and simultaneously implemented two standards, GB 18351 "Ethanol Gasoline for Vehicles (E10)" and GB 22030 "Ethanol Gasoline Blending Component Oil for Vehicles"; the two standards stipulate that ethanol gasoline for vehicles In addition to ethanol, other oxygen-containing compounds cannot exceed 0.5%, and are not allowed to be considered as additions; currently, the blending component of high-octane gasoline in motor gasoline is mainly MTBE, but MTBE is an oxygen-containing compound; the implementation of the two standards Means that once ethanol gasoline is fully implemented, MTBE will no longer be used as a gasoline blending component
The "Implementation Plan on Expanding the Production of Biofuel Ethanol and Promoting the Use of Ethanol Gasoline for Vehicles" will lead to the abandonment of the current MTBE production devices. The raw materials of these devices will no longer be used to produce high value-added products, and their downstream devices will also have to be The remaining C4 after treatment by the MTBE unit is not used as raw material, causing an interruption of an industrial chain

Method used

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  • Apparatus and method to produce isooctane by indirect alkylation technique
  • Apparatus and method to produce isooctane by indirect alkylation technique

Examples

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Embodiment 1

[0077] A method for producing isooctane by indirect alkylation technology, specifically comprising the following steps:

[0078] (1) Dimerization reaction: mixed carbon four and polymerization inhibitor pass into the fixed bed reactor 1 through the feed port 1, and the catalytic effect of the polymerization inhibitor and the mixed carbon four in the fixed bed reactor 1 is catalyst A The dimerization reaction is carried out under the lower pressure to obtain the reaction product; a part of the reaction product flows through the discharge port I, the pump and the heat exchanger in turn, and then returns to the feed port I for circulation. The reaction product removes the reaction heat through the heat exchanger and then returns to fix bed reactor I, thereby effectively controlling the temperature of the fixed-bed reactor I; another part of the reaction product flows through the discharge port I and the feed port II into the catalytic distillation tower in turn;

[0079] The comp...

Embodiment 2

[0097] A method for producing isooctane by indirect alkylation technology, specifically comprising the following steps:

[0098] (1) Dimerization reaction: mixed carbon four and polymerization inhibitor pass into the fixed bed reactor 1 through the feed port 1, and the catalytic effect of the polymerization inhibitor and the mixed carbon four in the fixed bed reactor 1 is catalyst A The dimerization reaction is carried out under the lower pressure to obtain the reaction product; a part of the reaction product flows through the discharge port I, the pump and the heat exchanger in turn, and then returns to the feed port I for circulation. The reaction product removes the reaction heat through the heat exchanger and then returns to fix bed reactor I, thereby effectively controlling the temperature of the fixed-bed reactor I; another part of the reaction product flows through the discharge port I and the feed port II into the catalytic distillation tower in turn;

[0099] The comp...

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Abstract

The invention discloses an apparatus and method to produce isooctane by an indirect alkylation technique. The apparatus comprises fixed-bed reactor I, a catalytic distilling column, an extracting column and a recycling column which are connected in sequence. The method comprises: allowing mixed C4 and a polymerization inhibitor to react in reactor I, feeding part of the product into the catalyticdistilling column, and removing reaction heat from the other part by a heat exchanger before returning; after catalytic distillation, feeding the overhead product into fixed-bed reactor II, reflowingafter reacting, and feeding the bottom product into the extracting column; after extracting, feeding overhead biopolymer into a desulfurizing column, and feeding the bottom product into the recyclingcolumn; after recycling, returning an extracting agent into the extracting column and the polymerization inhibitor to the reactor I; subjecting the biopolymer and hydrogen to hydrodesulfurization in the desulfurizing column to obtain isooctane that may act as a gasoline blend component. Existing MTBE (methyl tert-butyl ether) production equipment is modified into isooctane production equipment; the produced isooctane may act as an ethanol-gasoline blend component; byproducts of the isooctane may also act as other materials for reuse.

Description

technical field [0001] The invention relates to a device for producing isooctane, in particular to a device and method for producing isooctane by adopting an indirect alkylation technology. The indirect alkylation technology is used to transform the MTBE device, so that the catalyst containing olefin mixed carbon four is in the catalyst and Under the action of a polymerization inhibitor, a dimerization reaction is carried out to form a dimer, and the dimer is hydrodesulfurized to generate a high-octane gasoline blending component alkylate, and the main component of the alkylate is isooctane. Background technique [0002] On September 7, 2017, my country issued and simultaneously implemented two standards, GB 18351 "Ethanol Gasoline for Vehicles (E10)" and GB 22030 "Ethanol Gasoline Blending Component Oil for Vehicles"; the two standards stipulate that ethanol gasoline for vehicles In addition to ethanol, other oxygen-containing compounds cannot exceed 0.5%, and are not allowe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C5/03C07C7/00C07C9/21
CPCC07C2/28C07C5/03C07C7/00C07C9/21C07C11/02Y02P20/10
Inventor 葛立军王磐陆华良
Owner KAIRUI ENVIRONMENTAL PROTECTION TECH
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