CN205461672U - Edible level carbon dioxide fine purifiation tower - Google Patents
Edible level carbon dioxide fine purifiation tower Download PDFInfo
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Abstract
本实用新型属于二氧化碳气体纯化领域，具体涉及一种食用级二氧化碳精洗塔。该精洗塔外壳1顶部设有气体出口2，外壳1底部外壁两端各设有气体进口15，外壳1底部设有洗涤液排出口16，外壳1内部气体出口2下方设有除沫器3，除沫器3下方设有二级精洗单元，二级精洗单元下方设有分布器9，分布器9的一端设有循环洗涤液进口10，分布器9的下方设有填料吸附单元，填料吸附单元下方设有一级精洗单元。本实用新型精洗塔处理后得到食品级二氧化碳，且食品级二氧化碳产品纯度高于99.9%，在降低大幅能耗同时提高二氧化碳产品的性能指标。
The utility model belongs to the field of carbon dioxide gas purification, in particular to an edible-grade carbon dioxide fine washing tower. A gas outlet 2 is provided on the top of the casing 1 of the fine scrubber, a gas inlet 15 is provided at both ends of the outer wall of the bottom of the casing 1, a washing liquid discharge port 16 is provided at the bottom of the casing 1, and a demister 3 is provided under the gas outlet 2 inside the casing 1 , a secondary fine cleaning unit is provided under the demister 3, a distributor 9 is provided under the secondary fine cleaning unit, a circulating washing liquid inlet 10 is provided at one end of the distributor 9, and a filler adsorption unit is provided below the distributor 9, There is a primary fine cleaning unit under the packing adsorption unit. The utility model obtains food-grade carbon dioxide after being processed by the fine washing tower, and the purity of the food-grade carbon dioxide product is higher than 99.9%, which reduces the energy consumption and improves the performance index of the carbon dioxide product.
Description
技术领域 technical field
本实用新型属于二氧化碳气体纯化领域，具体涉及一种食用级二氧化碳精洗塔。 The utility model belongs to the field of carbon dioxide gas purification, in particular to an edible-grade carbon dioxide fine washing tower.
背景技术 Background technique
CO2属温室气体。由于CO2等温室气体的大量排放，引起了全球气候变暖，对世界各国的社会经济等各领域产生负面影响，它会造成诸如水资源短缺、居住环境恶化、经济损失加剧、海平面上升、热浪袭击增加等现象的发生，人类健康受到严重威胁，另外还可能引起物种变化的加剧。根据国际能源机构（IEA）的数据显示，除2009年经济危机的影响之外，历年的全球年排放的CO2气体总量都呈增长趋势，CO2浓度大幅度的增加，导致了严重的温室效应。为了遏制全球增暖趋势，各国谈判代表曾多次聚首，先后通过了《京都议定书》、《哥本哈根协议》，旨在减少CO2排放，控制全球温度上升速度。我国自2005年以后成为世界CO2年排放量第一大国。目前我国仍处于高速发展阶段，CO2年产生量仍将持续上升。作为世界经济强国和政治大国，我国面临CO2减排的巨大责任和压力。因此，控制温室气体排放，有效开展CO2捕获回收、运输和储存的研究和工业化转化势在必行，刻不容缓。 CO 2 is a greenhouse gas. Due to the massive emission of CO 2 and other greenhouse gases, global warming has been caused, which has a negative impact on the social and economic fields of countries all over the world. The occurrence of phenomena such as increased heat waves has seriously threatened human health, and may also cause species changes to intensify. According to the data of the International Energy Agency (IEA), in addition to the impact of the 2009 economic crisis, the total annual global CO 2 emissions have shown an increasing trend over the years, and the CO 2 concentration has increased significantly, leading to a serious greenhouse effect . In order to curb the trend of global warming, negotiators from various countries have met many times and successively passed the "Kyoto Protocol" and "Copenhagen Agreement", aiming to reduce CO2 emissions and control the rate of global temperature rise. Since 2005, China has become the world's largest CO2 emission country. At present, China is still in the stage of rapid development, and the annual production of CO2 will continue to rise. As the world's economic power and political power, China is facing the huge responsibility and pressure of CO2 emission reduction. Therefore, it is imperative to control greenhouse gas emissions, effectively carry out the research and industrialization of CO2 capture recovery, transportation and storage, and urgently.
我国酒精厂大多是以淀粉质非粮作物原料生产食用酒精，在发酵过程中酵母菌把糖转化成乙醇，同时还产生二氧化碳，每生产1吨酒精理论上可获得二氧化碳约0.96吨，在酒精发酵气中二氧化碳的浓度较高，可达到95 %以上，其杂质为醇类、醛类、酯类及微量氧气，利于生产高纯度的食品级二氧化碳。以年产酒精10万吨的酒精厂为例，其生产过程可年产生二氧化碳9万吨。二氧化碳的直接排放不仅危害环境，其实也是一种资源浪费。如果能够将此部分二氧化碳进行回收，无论是对保护环境减少温室气体的排放，还是对企业的效益都是很有意义的。 Most alcohol factories in my country use starchy non-grain crop raw materials to produce edible alcohol. During the fermentation process, yeast converts sugar into ethanol and produces carbon dioxide. Theoretically, about 0.96 tons of carbon dioxide can be obtained for each ton of alcohol produced. The concentration of carbon dioxide in the air is relatively high, which can reach more than 95%, and its impurities are alcohols, aldehydes, esters and trace oxygen, which is conducive to the production of high-purity food-grade carbon dioxide. Taking an alcohol factory with an annual output of 100,000 tons of alcohol as an example, its production process can produce 90,000 tons of carbon dioxide per year. The direct emission of carbon dioxide is not only harmful to the environment, but also a waste of resources. If this part of carbon dioxide can be recovered, it will be very meaningful both for the protection of the environment and the reduction of greenhouse gas emissions, and for the benefit of the enterprise.
如何提高二氧化碳纯度，尤其是如何除去二氧化碳气体中的甲醇、乙醇、乙醛等醇醛类微量水溶性杂质，对于精制成食品级的二氧化碳是否符合国际和国家相关标准、满足使用时的纯度要求十分重要。现有技术中，人们也通过对二氧化碳气体进行洗涤来除去其中的醇醛类水溶性杂质。但是由于没有合适的洗涤装置，导致洗涤效果差，洗涤效率低，二氧化碳纯度低，醇醛类杂质含量高，产品质量不达标，而且洗涤工序、装置复杂，生产成本高等。 How to improve the purity of carbon dioxide, especially how to remove trace water-soluble impurities such as methanol, ethanol, acetaldehyde, etc. very important. In the prior art, people also scrub the carbon dioxide gas to remove the aldol water-soluble impurities therein. However, because there is no suitable washing device, the washing effect is poor, the washing efficiency is low, the purity of carbon dioxide is low, the content of aldol impurities is high, the product quality is not up to standard, and the washing process and equipment are complicated, and the production cost is high.
发明内容 Contents of the invention
本实用新型针对淀粉质非粮作物生产乙醇的产业中产生的二氧化碳的直接排放危害环境、资源浪费等现状，尤其是在二氧化碳精洗除杂过程中存在洗涤效果差，洗涤效率低，二氧化碳纯度低，醇醛类杂质含量高，产品质量不达标等问题，提供一种洗涤洗过好，洗涤步骤程序简单，生产成本低的食用级二氧化碳精洗塔。 The utility model aims at the present situation that the direct emission of carbon dioxide produced in the industry of ethanol production by starchy non-grain crops endangers the environment and wastes resources, etc., especially in the process of fine cleaning and impurity removal of carbon dioxide, which has poor washing effect, low washing efficiency and low carbon dioxide purity , high content of aldol impurities, substandard product quality and other problems, provide a food grade carbon dioxide fine washing tower with good washing and washing steps, simple washing steps and low production cost.
本实用新型的方案是通过这样实现的：一种食用级二氧化碳精洗塔，该精洗塔外壳1顶部设有气体出口2，外壳1底部外壁两端各设有气体进口15，外壳1底部设有洗涤液排出口16，外壳1内部气体出口2下方设有除沫器3，除沫器3下方设有二级精洗单元，二级精洗单元下方设有分布器9，分布器9的一端设有循环洗涤液进口10，分布器9的下方设有填料吸附单元，填料吸附单元下方设有一级精洗单元；所述的二级精洗单元包括伸缩部件4、新鲜洗涤液进口5、喷洒导气头6、隔板7、新鲜洗涤液出口8，伸缩部件4位于喷洒导气头的导气管上，用于伸缩喷洒导气头，新鲜洗涤液进口5位置高于新鲜洗涤液出口8，新鲜洗涤液出口8位置高于挡板7，挡板7为倾斜式，并和喷洒导气头的导气管起到隔挡新鲜洗涤液的作用。 The scheme of the present utility model is realized in the following way: an edible grade carbon dioxide fine washing tower, the top of the shell 1 of the fine washing tower is provided with a gas outlet 2, the two ends of the outer wall of the bottom of the shell 1 are respectively provided with a gas inlet 15, and the bottom of the shell 1 is provided with a gas outlet 2. There is a washing liquid discharge port 16, a demister 3 is provided under the gas outlet 2 inside the shell 1, a secondary fine cleaning unit is provided under the demister 3, a distributor 9 is provided under the secondary fine cleaning unit, and the distributor 9 One end is provided with a circulating washing liquid inlet 10, a packing adsorption unit is provided below the distributor 9, and a primary fine cleaning unit is provided below the packing adsorption unit; the secondary fine cleaning unit includes a telescopic part 4, a fresh washing liquid inlet 5, Spray air guide 6, partition 7, fresh washing liquid outlet 8, telescopic part 4 is located on the air guide pipe of spraying air guide, used for telescopic spraying air guide, fresh washing liquid inlet 5 is higher than fresh washing liquid outlet 8 , the position of the fresh washing liquid outlet 8 is higher than the baffle plate 7, and the baffle plate 7 is inclined, and plays the role of blocking the fresh washing liquid with the air guide pipe of the spraying air guide head.
作为本实用新型的进一步限定，所述的填料吸附单元包括填料压板12、填料腔13、填料支撑板14，填料压板12位于填料腔13的上部，填料支撑板14位于填料腔13下部。 As a further limitation of the present invention, the filler adsorption unit includes a filler pressing plate 12 , a filler cavity 13 , and a filler support plate 14 , the filler pressure plate 12 is located at the upper part of the filler cavity 13 , and the filler support plate 14 is located at the lower part of the filler cavity 13 .
作为本实用新型的进一步限定，所述的一级精洗单元包括气体进口15和气体分流器11，气体进口15分别与气体分流器11两端连接。 As a further limitation of the present invention, the primary fine cleaning unit includes a gas inlet 15 and a gas splitter 11, and the gas inlet 15 is respectively connected to both ends of the gas splitter 11.
作为本实用新型的进一步限定，所述的气体分流器11为中空的圆盘环状结构，圆盘环状结构的上层为带孔面，下层为不透气面。 As a further limitation of the present invention, the gas splitter 11 is a hollow disc ring structure, the upper layer of the disc ring structure is a surface with holes, and the lower layer is an air-tight surface.
作为本实用新型的进一步限定，所述的气体进口15上方设有液位计17。 As a further limitation of the present invention, a liquid level gauge 17 is provided above the gas inlet 15 .
本实用新型具备以下良好效果：利用多级精洗步骤，保证气体能够均匀混入洗涤液中，并停留足够的时间，使气体中的杂质得到充分洗涤。采用本实用新型精洗装置处理回收得到食品级二氧化碳，且食品级二氧化碳产品纯度高于99.9%，其余各项技术指标均符合食品级二氧化碳标准GB10621-2006，在降低大幅能耗同时提高二氧化碳产品的性能指标。 The utility model has the following good effects: the multi-stage fine washing steps are used to ensure that the gas can be evenly mixed into the washing liquid and stay for a sufficient time, so that the impurities in the gas can be fully washed. The fine cleaning device of the utility model is used to process and recover food-grade carbon dioxide, and the purity of the food-grade carbon dioxide product is higher than 99.9%, and the rest of the technical indicators are in line with the food-grade carbon dioxide standard GB10621-2006. Performance.
附图说明 Description of drawings
图1. 食用级二氧化碳精洗塔。图中标识：1：外壳，2：气体出口，3：除沫器，4：伸缩部件，5：新鲜洗涤液进口，6：喷洒导气头， 7：隔板，8：新鲜洗涤液出口，9：分布器，10：循环洗涤液进口，11：气体分流器，12：填料压板，13：填料腔，14：填料支撑板，15：气体进口，16：洗涤液排出口，17：液位计。 Figure 1. Food grade carbon dioxide polishing tower. Marks in the figure: 1: Shell, 2: Gas outlet, 3: Demister, 4: Telescopic parts, 5: Fresh washing liquid inlet, 6: Spray air guide head, 7: Partition, 8: Fresh washing liquid outlet, 9: distributor, 10: circulating washing liquid inlet, 11: gas splitter, 12: packing pressure plate, 13: packing cavity, 14: packing support plate, 15: gas inlet, 16: washing liquid outlet, 17: liquid level count.
具体实施方式 detailed description
以下结合实施例和附图描述本实用新型生物发酵废弃二氧化碳回收纯化装置，这些描述并不是对本实用新型内容作进一步的限定。 The utility model bio-fermentation waste carbon dioxide recovery and purification device is described below in conjunction with the embodiments and accompanying drawings, and these descriptions are not intended to further limit the content of the utility model.
实施例1 Example 1
如图1所示，本实用新型食用级二氧化碳精洗塔外壳1顶部设有气体出口2，外壳1底部外壁两端各设有气体进口15，外壳1底部设有洗涤液排出口16，外壳1内部气体出口2下方设有除沫器3，除沫器3下方设有二级精洗单元，二级精洗单元下方设有分布器9，分布器9的一端设有循环洗涤液进口10，分布器9的下方设有填料吸附单元，填料吸附单元下方设有一级精洗单元；所述的二级精洗单元包括伸缩部件4、新鲜洗涤液进口5、喷洒导气头6、隔板7、新鲜洗涤液出口8，伸缩部件4位于喷洒导气头的导气管上，用于伸缩喷洒导气头，新鲜洗涤液进口5位置高于新鲜洗涤液出口8，新鲜洗涤液出口8位置高于挡板7，挡板7为倾斜式，并和喷洒导气头的导气管起到隔挡新鲜洗涤液的作用。所述的填料吸附单元包括填料压板12、填料腔13、填料支撑板14，填料压板12位于填料腔13的上部，填料支撑板14位于填料腔13下部。所述的一级精洗单元包括气体进口15和气体分流器11，气体进口15分别与气体分流器11两端连接。所述的气体分流器11为中空的圆盘环状结构，圆盘环状结构的上层为带孔面，下层为不透气面。所述的气体进口15上方设有液位计17。 As shown in Figure 1, the top of the edible grade carbon dioxide fine washing tower shell 1 of the utility model is provided with a gas outlet 2, and the two ends of the outer wall of the bottom of the shell 1 are respectively provided with a gas inlet 15, and the bottom of the shell 1 is provided with a washing liquid discharge port 16, and the shell 1 A demister 3 is provided below the internal gas outlet 2, a secondary fine cleaning unit is provided below the demister 3, a distributor 9 is provided below the secondary fine cleaning unit, and a circulating washing liquid inlet 10 is provided at one end of the distributor 9. A filler adsorption unit is provided below the distributor 9, and a primary fine cleaning unit is provided below the filler adsorption unit; the secondary fine cleaning unit includes a telescopic component 4, a fresh washing liquid inlet 5, a spraying air guide head 6, and a partition 7 , fresh washing liquid outlet 8, telescopic part 4 is located on the air guide pipe of the spraying air guide head, and is used for telescopic spraying air guide head, the position of fresh washing liquid inlet 5 is higher than that of fresh washing liquid outlet 8, and the position of fresh washing liquid outlet 8 is higher than The baffle plate 7, the baffle plate 7 is an inclined type, and plays the role of blocking the fresh washing liquid with the air guide pipe of the spray air guide head. The filler adsorption unit includes a filler pressure plate 12 , a filler chamber 13 , and a filler support plate 14 , the filler pressure plate 12 is located at the upper part of the filler cavity 13 , and the filler support plate 14 is located at the lower part of the filler cavity 13 . The primary fine cleaning unit includes a gas inlet 15 and a gas splitter 11, and the gas inlet 15 is connected to both ends of the gas splitter 11 respectively. The gas splitter 11 is a hollow disk ring structure, the upper layer of the disk ring structure is a surface with holes, and the lower layer is an air-tight surface. A liquid level gauge 17 is arranged above the gas inlet 15 .
应用实施例2 Application Example 2
以广西某大型木薯酒精发酵厂发酵后产生的尾气为气体原料，使用过程中，气体原料首先从气体进口15进入一级精洗单元的气体分流器11，气体从气体分流器11上层设有的气孔均匀分散至循环洗涤液中，保证二氧化碳在洗涤液中得到充分停留和洗涤；从一级精洗单元出来的气体再进入填料吸附单元，气体在填料吸附单元阶段被填料吸除掉醛类小分子杂质；填料吸附单元洗涤完成后，气体进入事先填充好循环洗涤液的分布器9中，最后达到二级精洗单元，二级精洗单元由于设有倾斜式隔板7，使得气体可加速通过喷洒导气头6的气管，此时根据需要伸缩部件4可调整喷头的高低，使喷头深入新鲜洗涤液中，使得气体均匀进入新鲜洗涤液中，并能停留足够的时间，彻底除去二氧化碳中的杂质。二级精洗后的气体最后经过除沫器3滤去少量液珠，最后由气体出口2。 The tail gas produced after fermentation by a large-scale cassava alcohol fermentation plant in Guangxi is used as the gas raw material. During use, the gas raw material first enters the gas splitter 11 of the first-level fine cleaning unit from the gas inlet 15, and the gas flows from the upper layer of the gas splitter 11. The pores are evenly dispersed into the circulating washing liquid to ensure that the carbon dioxide is fully retained and washed in the washing liquid; the gas from the first-level fine cleaning unit enters the packing adsorption unit, and the gas is absorbed by the packing to remove aldehydes in the packing adsorption unit stage. Molecular impurities; after the packing adsorption unit is washed, the gas enters the distributor 9 filled with the circulating washing liquid in advance, and finally reaches the secondary fine cleaning unit. The secondary fine cleaning unit is equipped with an inclined partition 7, so that the gas can be accelerated By spraying the air pipe of the air guide head 6, the telescopic part 4 can adjust the height of the nozzle according to the needs at this time, so that the nozzle can penetrate into the fresh washing liquid, so that the gas can enter the fresh washing liquid evenly, and can stay for enough time to completely remove the carbon dioxide. of impurities. The gas after the secondary fine cleaning finally passes through the demister 3 to filter out a small amount of liquid droplets, and finally exits the gas outlet 2.
采用本实用新型精洗装置处理回收得到食品级二氧化碳，且食品级二氧化碳产品纯度高于99.9%，其余各项技术指标均符合食品级二氧化碳标准GB10621-2006，在降低大幅能耗同时提高二氧化碳产品的性能指标。 The fine cleaning device of the utility model is used to process and recover food-grade carbon dioxide, and the purity of the food-grade carbon dioxide product is higher than 99.9%, and the rest of the technical indicators are in line with the food-grade carbon dioxide standard GB10621-2006. Performance.
本实用新型上述实施例方案仅是对本实用新型的说明而不能限制本实用新型，权利要求中指出了本实用新型设备构成和连接方式，而上述的说明并未指出本实用新型参数的范围，因此，在与本实用新型的权利要求书相当的含义和范围内的任何改变，都应当认为是包括在权利要求书的范围内。 The above-mentioned embodiments of the utility model are only descriptions of the utility model and can not limit the utility model. The utility model equipment composition and connection mode are pointed out in the claims, but the above description does not point out the scope of the utility model parameters, so , any change within the meaning and scope equivalent to the claims of the present utility model shall be deemed to be included in the scope of the claims.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105413411A (en) * | 2016-01-12 | 2016-03-23 | 广西新天德能源有限公司 | Food-grade carbon dioxide fine washing tower |
| CN118416679A (en) * | 2024-07-04 | 2024-08-02 | 山东韶华气体有限公司 | High-pressure purification device for carbon dioxide production |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105413411A (en) * | 2016-01-12 | 2016-03-23 | 广西新天德能源有限公司 | Food-grade carbon dioxide fine washing tower |
| CN118416679A (en) * | 2024-07-04 | 2024-08-02 | 山东韶华气体有限公司 | High-pressure purification device for carbon dioxide production |
| CN118416679B (en) * | 2024-07-04 | 2024-09-27 | 山东韶华气体有限公司 | High-pressure purification device for carbon dioxide production |
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