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Method and apparatus for mixing fluids

一种混合流体、流体的技术，应用在混合方法、混合机、使液体与液体反应的化学方法等方向，能够解决高成本精炼厂装置等问题

Active Publication Date: 2015-12-23
NESTE OIL OY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Corrosion control by corrosion-resistant materials is possible, but translates into high cost and extensive modification of refinery units

Method used

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  • Method and apparatus for mixing fluids
  • Method and apparatus for mixing fluids
  • Method and apparatus for mixing fluids

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0084] Example 1 - Fluid Mixer

[0085] Assuming that the entire fluid mixer material can withstand 100% FFA, investigate the maximum FFA content of the feed. The material of the reactor wall is not changed and no additional protective layer is used in the reactor. Therefore, the fluid mixer was designed so that the FFA content close to the reactor wall did not exceed 12% by weight. One embodiment of the fluid mixer of the present invention is shown in figure 1 middle.

Embodiment 2

[0087] In this example, the fluid flow inside a fluid mixer is simulated. The first fluid enters the mixer from the top at 140t / h, and the second fluid is injected into the stream inside the mixer (see figure 1 ).

[0088] In order to increase the FFA concentration in the quench inlet (i.e., the second inlet), the simulated figure 1 The design shown in . FFA feed concentrations of 50, 80 and 100% by weight were used. Figure 2-4 FFA mass fractions are shown for specifications ranging from 0-12% by weight. Considering the 12 wt% FFA limit, 100 wt% FFA in the second fluid is acceptable if the wall can withstand up to 8 wt% or 12 wt%, depending on the quench tank material.

[0089] A CFD simulation of the FFA distribution inside the fluid mixer in the HDO reactor was performed. The simulations confirmed that the proposed fluid mixer is capable of effectively mixing the first fluid and the corrosive second fluid. Based on corrosion tests, the walls can withstand a maximum of...

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PUM

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Abstract

A method and apparatus for mixing at least two fluids is provided. The method involves using means for providing a spiral stream of a first fluid and a second fluid is injected directly inside the first fluid to achieve effective mixing.

Description

technical field [0001] This specification is concerned with mixing fluids. In particular, but not exclusively, it involves efficient fluid mixing by injecting fresh fluid feed into a helical flow of recirculating fluid feed. [0002] The method is useful, for example, in chemical processes where a corrosive fresh fluid feed is mixed into a recirculating fluid feed. It finds particular use in processing hydrocarbons, such as diesel range hydrocarbons from bioderived renewable sources, eg from bio-oils and fats. The invention can also be used to control the temperature profile of the reactor. Background technique [0003] Environmental interests and increasing demand for diesel fuel are driving fuel producers to use renewable sources more intensively in the manufacture of diesel fuel. In the manufacture of diesel fuels based on biological raw materials, ie renewable and biodiesel, the main interest is thus very much focused on vegetable oils and animal fats comprising tri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F5/00B01F3/00B01F3/04B01F23/00
CPCB01J4/00B01J14/00B01J2204/007B01J19/2405B01J2219/00164B01F2025/914B01F25/10B01F25/3131Y02P30/20B01F35/71725B01F23/45B01F23/405B01F2101/505
Inventor A.里斯卡J.苏梅拉J.维特廷恩
Owner NESTE OIL OY
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