System and process for dehydrating and drying isooctyl nitrate crude product

A technology of isooctyl nitrate and drying system is applied in the production field of petrochemical product nitrate, can solve problems such as low production efficiency, and achieve the effect of improving production efficiency

Active Publication Date: 2010-04-21
西安万德能源化学股份有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to propose a drying system and a dehydration process for the

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  • System and process for dehydrating and drying isooctyl nitrate crude product
  • System and process for dehydrating and drying isooctyl nitrate crude product

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Embodiment Construction

[0022] The present invention will be described in detail below with reference to the accompanying drawings.

[0023] A kind of drying system of isooctyl nitrate crude product, comprise the crude product tank 1 that pump is connected successively, rough take off component, fine take off component and product tank 4, described rough take off component and comprise two silica gel rough off devices 2 that are connected in parallel, The fine eliminator assembly includes a molecular sieve fine eliminator 3 . Said silica gel coarse stripper 2 and molecular sieve fine stripper 3 are all made of a cylindrical shell, a distributor arranged in the upper part of the shell, a built-in support structure in the bottom of the shell, and a wire mesh set in the upper part of the support structure. Granular color-changing silica gel is placed on the screen of device 2 as a dehydrating agent; 5A molecular sieve particles are placed on the screen of molecular sieve fine eliminator 3 as a dehydrati...

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Abstract

The invention belongs to the technical field of producing petrochemicals such as nitrates, and specifically relates to a system and a process for dehydrating and drying an isooctyl nitrate crude product. The system and the process are to overcome the defect of low production efficiency in the prior art and adopt the following technical scheme: the system for drying the isooctyl nitrate crude product comprises a crude product tank, a rough-removing component, a fine-removing component and a product tank which are connected with a pump in turn, wherein the rough-removing component comprises two silica gel rough-removing devices connected in parallel, and the fine-removing component comprises one molecular sieve fine-removing device. The system and the process have the following advantages that: 1, the processing and the operation are simple and convenient; 2, the water content can be conveniently adjusted and controlled in real time as requested; 3, the used adsorbents are particles and have no problems of a sodium sulfate adsorbent which is easy to agglomerate after absorbing water and then increases the operational complexity; 4, the system and the process are stable and reliable; and 5, the production efficiency is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of production of petrochemical product nitrate, and in particular relates to a dehydration and drying system and process for a crude product of isooctyl nitrate. Background technique [0002] Isooctyl nitrate is an excellent cetane number improver for diesel oil. In industry, the method of nitration of isooctyl alcohol is generally used for production. In the method, concentrated sulfuric acid is used as a catalyst, nitric acid and isooctyl alcohol are directly nitrated in a reactor, and the product isooctyl nitrate is obtained through processes such as separation, alkali washing, water washing, drying and dehydration. [0003] At present, vacuum drying and physical adsorption are mainly used in industry for dehydration. In CN1031525A, a synthesis process is introduced. The drying and dehydration section mainly adopts the method of vacuum drying for dehydration. The disadvantage is that special vacuum equi...

Claims

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Application Information

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IPC IPC(8): C07C203/04C07C201/02B01D15/00
Inventor 王育斌曹彬杨战厂常兆军
Owner 西安万德能源化学股份有限公司
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