A new high-efficiency dealcoholization formaldehyde absorption tower
A formaldehyde absorption tower and dealcoholization technology, which is applied to the separation of dispersed particles, chemical instruments and methods, and separation methods, can solve problems such as low utilization rate, heat loss, and poor dealcoholization effect, and achieve social benefits of energy saving and emission reduction. Improved absorption efficiency and high dealcoholization efficiency
Active Publication Date: 2018-05-01
临沂经济开发区城市建设投资有限公司
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[0003] The traditional formaldehyde production process is that after cooling the hot formaldehyde gas and recovering part of the heat, multiple absorption towers are used to absorb formaldehyde. At the same time, formaldehyde must be dealcoholized during absorption, and the general absorption tower does not have The alcohol function or the dealcoholization effect is poor, and the methanol cannot be completely removed
However, because the heat inside the transmission formaldehyde absorption tower cannot be used reasonably, a large amount of heat is lost or the utilization rate is low, resulting in waste.
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[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0017] see figure 1 , the embodiment of the present invention includes:
[0018] A new type of high-efficiency dealcoholization and energy-saving formaldehyde absorption tower, including a bottom tower body 1, an intermediate tower body 2 and an upper tower body 3 connected sequentially from bottom to top. The upper part of the bottom tower body 1 is provided with a hot formaldehyde gas inlet 11, The inner cavity of the bottom tower body 1 below the hot formaldehyde gas inlet 11 is provided with a layer of packing l...
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The invention discloses a new high-efficiency dealcoholization formaldehyde absorption tower, which comprises a bottom tower body, a middle tower body and an upper tower body which are sequentially connected from bottom to top. Shaped liquid absorption pipes and external energy utilization equipment can be used for dealcoholization in the absorption tower, and the residual alcohol can be recycled to absorb formaldehyde again and reused. Through the above method, the new high-efficiency dealcoholization formaldehyde absorption tower of the present invention combines the functions and functions of multiple tower bodies in the prior art into one tower body to form a multi-layer tower body, which has high dealcoholization efficiency and high quality. Excellent, cyclic absorption of formaldehyde improves the efficiency of formaldehyde absorption, and at the same time, it can realize online concentration monitoring of formaldehyde finished products and automatic discharge of finished products, which also has great social benefits of energy saving and emission reduction.
Description
technical field [0001] The invention relates to a formaldehyde absorption tower, in particular to a novel high-efficiency dealcoholization formaldehyde absorption tower. Background technique [0002] Formaldehyde is an important organic raw material, mainly used in the plastic industry (such as phenolic resin, urea-formaldehyde plastic - Dianyu), synthetic fiber (such as synthetic vinylon - polyvinyl formal), leather industry, medicine, dyes, etc. [0003] The traditional formaldehyde production process is that after cooling the hot formaldehyde gas and recovering part of the heat, multiple absorption towers are used to absorb formaldehyde. At the same time, formaldehyde must be dealcoholized during absorption, and the general absorption tower does not have The alcohol function or the dealcoholization effect is poor, and the methanol cannot be completely removed. However, because the heat inside the transmission formaldehyde absorption tower cannot be used reasonably, a lar...
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IPC IPC(8): B01D53/18
Inventor 梁金春陈宗范
Owner 临沂经济开发区城市建设投资有限公司