TW201700793A - System and method for generating hydrogen by hydrolysis consisting of a reaction tank, a filter bottle and a thermal conduction device to increase the rate of chemical reaction and the formation of water vapor - Google Patents
System and method for generating hydrogen by hydrolysis consisting of a reaction tank, a filter bottle and a thermal conduction device to increase the rate of chemical reaction and the formation of water vapor Download PDFInfo
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Abstract
Description
本發明係關於一種產氫系統及方法，尤指一種利用硼氫化鈉之水解產氫系統及方法。 The present invention relates to a hydrogen production system and method, and more particularly to a hydrogen production system and method using sodium borohydride.
近年石化燃料日漸枯竭，且使用時容易對環境造成污染，因此尋找新的低污染替代能源是一項迫切且重要的課題。其中倚靠電化學能源為主體的「燃料電池」成為最受矚目之發展主題。不像傳統熱機必須先將化學能轉成熱能，再將熱能轉換成電能，燃料電池係直接把化學能轉換成電能，減少能量轉換過程，其不受卡諾循環之限制，因此效率甚高。 In recent years, petrochemical fuels have been depleted and are easily polluted by the environment. Therefore, finding new low-pollution alternative energy sources is an urgent and important issue. The "fuel cell", which relies on electrochemical energy as the main body, has become the most popular development theme. Unlike traditional heat engines, which must convert chemical energy into heat energy and then convert heat energy into electrical energy, fuel cells directly convert chemical energy into electrical energy, reducing the energy conversion process, which is not limited by the Carnot cycle, and therefore is highly efficient.
氫燃料電池為燃料電池種類中最無污染之種類之一，與其他燃料相比，氫的能源轉換過程最清潔，不會產生一氧化碳、二氧化碳、碳氫化合物等有害物質，產物水還可以繼續產氫循環利用。氫可以氣態、液態、固態之金屬氫化物出現，方便儲存或運送，因此可知氫的確是一種理想的能量載體。 Hydrogen fuel cells are one of the most pollution-free types of fuel cells. Compared with other fuels, hydrogen has the cleanest energy conversion process and does not produce harmful substances such as carbon monoxide, carbon dioxide and hydrocarbons. The product water can continue to be produced. Hydrogen recycling. Hydrogen can be present in gaseous, liquid or solid metal hydrides for easy storage or transport, so hydrogen is indeed an ideal energy carrier.
與其他儲氫技術相比(像是高壓氫、液態氫、吸附劑、奈米碳管、金屬氫化物)化學儲氫的方式是最具安全性、化學穩定性、高重量密度與體積小之優點等。硼氫化鈉(Sodium tetrahydridoborate,NaBH4)是化學產氫的材料之一，因為其儲氫效率以及轉化氫效率很高並且可以藉由 催化劑來提升其產氫速率。 Compared with other hydrogen storage technologies (such as high pressure hydrogen, liquid hydrogen, adsorbents, carbon nanotubes, metal hydrides), the way to store hydrogen is the safest, chemically stable, high weight density and small size. Advantages, etc. Sodium tetrahydridoborate (NaBH 4 ) is one of the materials for chemical hydrogen production because of its high hydrogen storage efficiency and high hydrogen conversion efficiency, and its catalyst can be used to increase its hydrogen production rate.
硼氫化鈉之水解產氫反應一般係將水倒入混合有觸媒及硼氫化鈉的一反應槽內，硼氫化鈉水解為放熱反應，所以不需從外界供應能量，便可持續產生氫氣與溶於水之偏硼酸鈉(NaBO2)，但反應速度不快。於氣相中除了氫氣之外，還有反應放熱而蒸發的水蒸氣，因此還需要有進一步的氫氣純化裝置，才能得到純氫。因此，為了提高產氫速率及產能，並純化所產生之氫氣，本發明提供一種水解產氫系統及方法，同時解決上述問題。 Hydrolysis of sodium borohydride is generally carried out by pouring water into a reaction tank mixed with a catalyst and sodium borohydride. The sodium borohydride is hydrolyzed into an exothermic reaction, so that hydrogen can be continuously produced without supplying energy from the outside. Sodium metaborate (NaBO 2 ) dissolved in water, but the reaction rate is not fast. In addition to hydrogen in the gas phase, there is also water vapor which evaporates by exothermic reaction. Therefore, a further hydrogen purification device is required to obtain pure hydrogen. Therefore, in order to increase the hydrogen production rate and productivity, and to purify the hydrogen produced, the present invention provides a hydrolyzed hydrogen production system and method while solving the above problems.
有鑑於此，本發明之目的在於提供一種水解產氫系統，其透過含有硼氫化鈉粉末之過濾瓶提升產氫效率，同時純化氫氣，完整地解決習知水解產氫效率低落的問題。 In view of the above, an object of the present invention is to provide a hydrolyzed hydrogen production system which enhances hydrogen production efficiency through a filter bottle containing sodium borohydride powder, and at the same time purifies hydrogen, and completely solves the problem of low efficiency of hydrogen hydrolysis by conventional hydrolysis.
本發明之另一目的在於提供一種水解產氫方法，其採用含有硼氫化鈉粉末之過濾瓶提升產氫效率，同時利用反應熱加速產氫速度，完整地克服習知硼氫化鈉之水解產氫效率低落的問題。 Another object of the present invention is to provide a method for hydrolyzing hydrogen production, which uses a filter bottle containing sodium borohydride powder to enhance the hydrogen production efficiency, and at the same time accelerates the hydrogen production rate by using the reaction heat, and completely overcomes the hydrolyzed hydrogen production by the conventional sodium borohydride powder. The problem of inefficiency.
為達成上述目的，本發明提供之水解產氫系統包括一反應槽、一過濾瓶以及一導熱裝置。該反應槽用以容納一第一觸媒及一硼氫化鈉水溶液於其內產生化學反應，而產生氫氣及水蒸氣。該過濾瓶經一管連接於該反應槽，用於將該反應槽所產生之氫氣純化，其中該過濾瓶內具有一過濾材、一第二觸媒及一硼氫化鈉粉末，該硼氫化鈉粉末受到該水蒸氣後水解進一步產生氫氣及熱量。該導熱裝置連結於該過濾瓶及該反應槽之間，用於將該過濾瓶產生之熱量傳導至該反應槽，用以增加化學反應速率 及水蒸氣之形成。 To achieve the above object, the hydrolyzed hydrogen production system provided by the present invention comprises a reaction tank, a filter bottle and a heat conducting device. The reaction tank is configured to contain a first catalyst and an aqueous solution of sodium borohydride to generate a chemical reaction therein to generate hydrogen gas and water vapor. The filter bottle is connected to the reaction tank through a tube for purifying hydrogen gas generated in the reaction tank, wherein the filter bottle has a filter material, a second catalyst and sodium borohydride powder, and the sodium borohydride The powder is hydrolyzed by the water vapor to further generate hydrogen and heat. The heat conducting device is coupled between the filter bottle and the reaction tank for conducting heat generated by the filter bottle to the reaction tank for increasing the chemical reaction rate And the formation of water vapor.
在一較佳實施例中，該第二觸媒與該硼氫化鈉粉末之重量比為1比4。 In a preferred embodiment, the weight ratio of the second catalyst to the sodium borohydride powder is 1 to 4.
在一較佳實施例中，該過濾材包括一分子篩。 In a preferred embodiment, the filter material comprises a molecular sieve.
在一較佳實施例中，該導熱裝置為一熱管。 In a preferred embodiment, the heat conducting device is a heat pipe.
在一較佳實施例中，該第一觸媒與該第二觸媒之材料相同，例如為鈷。 In a preferred embodiment, the first catalyst is the same material as the second catalyst, such as cobalt.
為達成上述另一目的，本發明提供之水解產氫方法包括下列步驟：採用一第一觸媒及一硼氫化鈉水溶液於一反應槽內之進行水解反應，而產生氫氣及水蒸氣；採用一過濾瓶將該反應槽所產生之氫氣純化，其中該過濾瓶內具有一過濾材、一第二觸媒及一硼氫化鈉粉末，該硼氫化鈉粉末受到該水蒸氣後水解進一步產生氫氣及熱量；以及採用一導熱裝置將該過濾瓶產生之熱量傳導至該反應槽，以增加水解反應速率及水蒸氣之形成。 In order to achieve the above other object, the method for hydrolyzing hydrogen produced by the present invention comprises the steps of: performing a hydrolysis reaction in a reaction tank by using a first catalyst and an aqueous solution of sodium borohydride to generate hydrogen gas and water vapor; The filter bottle purifies the hydrogen gas generated in the reaction tank, wherein the filter bottle has a filter material, a second catalyst and sodium borohydride powder, and the sodium borohydride powder is hydrolyzed by the water vapor to further generate hydrogen gas and heat. And using a heat conducting device to conduct heat generated by the filter bottle to the reaction tank to increase the rate of hydrolysis reaction and the formation of water vapor.
在一較佳實施例中，該第二觸媒與該硼氫化鈉粉末之重量比為1比4。 In a preferred embodiment, the weight ratio of the second catalyst to the sodium borohydride powder is 1 to 4.
在一較佳實施例中，該導熱裝置為一熱管。 In a preferred embodiment, the heat conducting device is a heat pipe.
在一較佳實施例中，該過濾材包括一分子篩。 In a preferred embodiment, the filter material comprises a molecular sieve.
相較於習知技術，本發明之水解產氫系統及方法透過含有硼氫化鈉粉末之過濾瓶接收水蒸氣進一步提高產氫量，同時純化氫氣，完整地解決習知硼氫化鈉之水解產氫效率低落的問題。另一方面，經由導熱裝置回收過濾瓶內之熱量，以加熱反應槽，藉此產生更多水蒸氣同時加速 水解產氫之反應速率，同樣地克服了習知硼氫化鈉之水解產氫效率低落的問題。 Compared with the prior art, the hydrolyzed hydrogen production system and method of the present invention receives water vapor through a filter bottle containing sodium borohydride powder to further increase hydrogen production, and simultaneously purifies hydrogen to completely solve the hydrolyzed hydrogen production of the conventional sodium borohydride powder. The problem of inefficiency. On the other hand, the heat in the filter bottle is recovered via the heat transfer device to heat the reaction tank, thereby generating more water vapor and accelerating The reaction rate of hydrolyzing hydrogen production also overcomes the problem of the low hydrogen production efficiency of the conventional sodium borohydride.
為讓本發明之上述和其他目的、特徵、和優點能更明顯易懂，配合所附圖式，作詳細說明如下： The above and other objects, features, and advantages of the present invention will become more apparent and understood.
10‧‧‧水解產氫系統 10‧‧‧ Hydrolysis hydrogen production system
20‧‧‧氫燃料電池 20‧‧‧ Hydrogen fuel cell
120‧‧‧反應槽 120‧‧‧Reaction tank
130‧‧‧管 130‧‧‧ tube
140‧‧‧過濾瓶 140‧‧‧Filter bottle
160‧‧‧導熱裝置 160‧‧‧heat conduction device
第1圖為本發明之一較佳實施例之水解產氫系統之示意圖。 BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic illustration of a hydrolyzed hydrogen production system in accordance with a preferred embodiment of the present invention.
第2圖繪示本發明之較佳實施例之水解產氫方法之流程圖。 2 is a flow chart showing a method for hydrolyzing hydrogen production according to a preferred embodiment of the present invention.
本發明之數個較佳實施例藉由所附圖式與下面之說明作詳細描述，在不同的圖式中，相同的元件符號表示相同或相似的元件。 The present invention has been described in detail with reference to the preferred embodiments in the
請參照第1圖，第1圖為本發明之一較佳實施例之水解產氫系統之示意圖。需注意的是，上述圖式僅為說明用途，其並未以實際比例繪製。本實施例之水解產氫系統10可用於提供氫燃料電池20所需之氫氣。然而，本發明之水解產氫系統10並不限只能用於氫燃料電池20，其他需要純氫氣的場合也能適用之。 Please refer to FIG. 1. FIG. 1 is a schematic view showing a hydrolysis hydrogen production system according to a preferred embodiment of the present invention. It should be noted that the above figures are for illustrative purposes only and are not drawn to actual scale. The hydrolyzed hydrogen production system 10 of the present embodiment can be used to supply hydrogen gas required for the hydrogen fuel cell 20. However, the hydrolyzed hydrogen production system 10 of the present invention is not limited to use only for the hydrogen fuel cell 20, and other applications requiring pure hydrogen gas are also applicable.
本實施例之水解產氫系統10包括反應槽120、過濾瓶140以及導熱裝置160。如第1圖所示，該反應槽120用以容納第一觸媒及硼氫化鈉(NaBH4)水溶液於其內產生化學反應，進而產生氫氣及水蒸氣。具體而言，該反應槽120內可先儲存預定比例之第一觸媒及硼氫化鈉粉末，待需要產氫時，可倒入酸性水溶液或鹼性水溶液，使得硼氫化鈉粉末變成水溶液直接與觸媒混合，直到反應結束。也就是說，本實施例之反應槽120為批次式 (Batch type)產氫裝置。然而，本發明並不限制運用於批次式產氫裝置，反應艙式(Reaction Chamber type)產氫裝置也在本發明之範圍內。 The hydrolyzed hydrogen production system 10 of the present embodiment includes a reaction tank 120, a filter bottle 140, and a heat transfer device 160. As shown in FIG. 1, the reaction tank 120 is configured to contain a first catalyst and an aqueous solution of sodium borohydride (NaBH4) to generate a chemical reaction therein to generate hydrogen gas and water vapor. Specifically, a predetermined proportion of the first catalyst and sodium borohydride powder may be stored in the reaction tank 120. When hydrogen is required to be produced, an acidic aqueous solution or an alkaline aqueous solution may be poured, so that the sodium borohydride powder is directly converted into an aqueous solution. The catalyst is mixed until the reaction is over. That is, the reaction tank 120 of the embodiment is of a batch type. (Batch type) Hydrogen production unit. However, the present invention is not limited to use in a batch type hydrogen producing apparatus, and a reaction chamber type hydrogen producing apparatus is also within the scope of the present invention.
詳細而言，本實施例倒入之水溶液為鹼性水溶液，較佳為氫氧化鈉NaOH(1wt%)水溶液。另外，本實施例之第一觸媒為鈷，然而本發明並不限於此。 In detail, the aqueous solution poured in this embodiment is an alkaline aqueous solution, preferably an aqueous solution of sodium hydroxide NaOH (1% by weight). Further, the first catalyst of the present embodiment is cobalt, but the present invention is not limited thereto.
在鹼性水溶液的條件下，硼氫化鈉水解產氫反應之化學反應式為：NaBH4+4H2O → NaB(OH)4+4H2↑+Heat(300 kJ) Under the condition of alkaline aqueous solution, the chemical reaction formula of hydrogen hydrolysis reaction of sodium borohydride is: NaBH 4 +4H 2 O → NaB(OH) 4 +4H 2 ↑+Heat (300 kJ)
由上可知，每莫爾的硼氫化鈉與4莫爾的水可產生4莫爾的氫氣、1莫爾的NaB(OH)4以及反應熱約300kJ，而此反應熱會引起些許水蒸氣伴隨著氫氣產生。 It can be seen from the above that each mole of sodium borohydride and 4 moles of water can produce 4 moles of hydrogen, 1 mole of NaB(OH) 4 and a heat of reaction of about 300 kJ, and the heat of reaction will cause some water vapor to accompany. Hydrogen is produced.
如第1圖所示，過濾瓶140經一管130連接於該反應槽120，用於將反應槽120所產生之氫氣純化。詳細而言，該管130可為矽膠管或任意管，管130之一端連接於反應槽120之上端，用於接收氫氣及水蒸氣，管130之另一端連接於過濾瓶140之底端，用於導入氫氣及水蒸氣，以進行氫氣的純化。 As shown in FIG. 1, the filter bottle 140 is connected to the reaction tank 120 via a tube 130 for purifying the hydrogen gas generated in the reaction tank 120. In detail, the tube 130 can be a silicone tube or any tube. One end of the tube 130 is connected to the upper end of the reaction tank 120 for receiving hydrogen and water vapor, and the other end of the tube 130 is connected to the bottom end of the filter bottle 140. Hydrogen and water vapor are introduced to purify the hydrogen.
過濾瓶140內具有過濾材、第二觸媒及硼氫化鈉粉末，該硼氫化鈉粉末受到該水蒸氣後水解進一步產生氫氣及熱量，也就是說，過濾瓶140內同樣發生硼氫化鈉水解產氫反應，具體而言，在過濾瓶140內硼氫化鈉水解產氫反應之化學反應式為：NaBH4+2H2O → NaBO2+4H2↑+heat(300 kJ) The filter bottle 140 has a filter material, a second catalyst and sodium borohydride powder. The sodium borohydride powder is hydrolyzed by the water vapor to further generate hydrogen gas and heat, that is, the sodium borohydride hydrolyzed in the filter bottle 140. The hydrogen reaction, specifically, the chemical reaction formula of hydroboration reaction of sodium borohydride in the filter bottle 140 is: NaBH 4 + 2H 2 O → NaBO 2 + 4H 2 ↑ + heat (300 kJ)
由於過濾瓶140內的硼氫化鈉粉末僅受到水蒸氣的水解作 用，在水量較少的情況下，2莫爾的水與1莫爾的硼氫化鈉可產生4莫爾的氫氣、1莫爾的偏硼酸鈉(NaBO2)及以熱量約300kJ。因此，由於過濾瓶140內沒有多餘的水，可以讓此反應的熱量產生水蒸氣，故過濾瓶140會產生高熱。也就是說，過濾瓶140內的硼氫化鈉粉可間接去除掉水蒸氣，等同於過濾功能。 Since the sodium borohydride powder in the filter bottle 140 is only hydrolyzed by water vapor In the case of a small amount of water, 2 moles of water and 1 mole of sodium borohydride can produce 4 moles of hydrogen, 1 mole of sodium metaborate (NaBO2), and a heat of about 300 kJ. Therefore, since there is no excess water in the filter bottle 140, the heat of the reaction can be caused to generate water vapor, so the filter bottle 140 generates high heat. That is to say, the sodium borohydride powder in the filter bottle 140 can indirectly remove water vapor, which is equivalent to the filtration function.
值得一提的是，過濾瓶140之第二觸媒與該硼氫化鈉粉末之重量比為1比4，可得最佳的產氫效果。另外，該第一觸媒與該第二觸媒之材料相同，例如為鈷。然而，在其他實施例中，第一觸媒與該第二觸媒之材料也可不相同。 It is worth mentioning that the weight ratio of the second catalyst of the filter bottle 140 to the sodium borohydride powder is 1 to 4, and the best hydrogen production effect can be obtained. In addition, the first catalyst is the same material as the second catalyst, such as cobalt. However, in other embodiments, the materials of the first catalyst and the second catalyst may also be different.
另外值得注意的是，過濾瓶140之過濾材在本實施例中包括分子篩(Molecular Sieve)，分子篩是一種包含有精確和單一的微小孔洞的材料，可用於吸附氣體或液體，足夠小的分子可以通過孔道被吸附，而更大的分子則不能。在此實施例中，分子篩用來當作乾燥劑，其能吸附高達其自身重量22%的水分，用以得到更純淨的氫氣。 It is also worth noting that the filter material of the filter bottle 140 includes a molecular sieve (Molecular Sieve) in this embodiment. The molecular sieve is a material containing precise and single micropores, which can be used for adsorbing gas or liquid, and a small enough molecule can be used. It is adsorbed through the pores, while larger molecules cannot. In this embodiment, the molecular sieve is used as a desiccant capable of adsorbing up to 22% of its own weight of water for more pure hydrogen.
請再參照第1圖，導熱裝置160連結於該過濾瓶140及該反應槽120之間，用於將該過濾瓶140產生之熱量傳導至該反應槽120，用以增加化學反應速率及水蒸氣之形成。具體而言，本實施例之導熱裝置160為連接過濾瓶140及反應槽120表面的熱管(或稱熱交換管)，可將產生高熱的過濾瓶140表面透過熱傳導，將熱量傳遞到反應槽120表面，而對鹼性水溶液加溫，增加反應速率。然而，本發明並不限熱管的具體型式，在其他實施例中，導熱裝置160也可為均熱板(Vapor Chamber)或以水冷方式傳遞熱量。 Referring to FIG. 1 again, a heat conducting device 160 is coupled between the filter bottle 140 and the reaction tank 120 for conducting heat generated by the filter bottle 140 to the reaction tank 120 for increasing the chemical reaction rate and water vapor. Formation. Specifically, the heat conducting device 160 of the present embodiment is a heat pipe (or heat exchange tube) that connects the filter bottle 140 and the surface of the reaction tank 120, and can transmit heat to the surface of the filter bottle 140 that generates high heat to transfer heat to the reaction tank 120. The surface, while warming the aqueous alkaline solution, increases the reaction rate. However, the present invention is not limited to the specific type of heat pipe. In other embodiments, the heat conducting device 160 may also be a Vapor Chamber or transfer heat in a water-cooled manner.
由此可知，本發明利用過濾瓶140內少量的水蒸氣對額外的 硼氫化鈉粉末進行水解反應，進一步生成氫氣以提高產量，並利用在過濾瓶140內的熱量對反應槽120加熱，以提高反應槽120內的化學(硼氫化鈉水解)反應速率，並且同時增加水蒸氣的產量，以供過濾瓶140內進行額外的水解反應，如此正向循環，因此解決了習知硼氫化鈉之水解產氫效率低落的問題。 It can be seen that the present invention utilizes a small amount of water vapor in the filter bottle 140 for additional The sodium borohydride powder is subjected to a hydrolysis reaction to further generate hydrogen gas to increase the yield, and the reaction tank 120 is heated by the heat in the filter bottle 140 to increase the chemical (sodium borohydride) reaction rate in the reaction tank 120, and simultaneously increase The production of water vapor is carried out for additional hydrolysis reaction in the filter bottle 140, so that it is recycled in the forward direction, thereby solving the problem of low hydrogen production efficiency of the conventional sodium borohydride.
以下將說明採用上述水解產氫系統10之水解產氫方法，請一併參照第1圖及第2圖。第2圖繪示本發明之較佳實施例之水解產氫方法之流程圖。本實施例之水解產氫方法開始於步驟S10。 Hereinafter, a method of hydrolyzing hydrogen production by the above hydrolyzed hydrogen production system 10 will be described. Please refer to Fig. 1 and Fig. 2 together. 2 is a flow chart showing a method for hydrolyzing hydrogen production according to a preferred embodiment of the present invention. The hydrolysis hydrogen production method of this embodiment starts at step S10.
在步驟S10中，採用第一觸媒及硼氫化鈉水溶液於反應槽120內之進行水解反應，而產生氫氣及水蒸氣，接著進行步驟S20。 In step S10, the first catalyst and the aqueous sodium borohydride solution are subjected to a hydrolysis reaction in the reaction tank 120 to generate hydrogen gas and water vapor, followed by step S20.
在步驟S20中，採用過濾瓶140將該反應槽120所產生之氫氣純化，接著進行步驟S30。該過濾瓶140內具有過濾材、第二觸媒及硼氫化鈉粉末，該硼氫化鈉粉末受到該水蒸氣後水解進一步產生氫氣及熱量。值得注意的是，在步驟中，第二觸媒與該硼氫化鈉粉末之重量比為1比4，可得最佳的產氫效果。另外，該第一觸媒與該第二觸媒之材料相同，例如為鈷。此外，該過濾材包括分子篩，以吸收水份而得到更純淨的氫氣。 In step S20, the hydrogen gas generated in the reaction tank 120 is purified by the filter bottle 140, and then proceeds to step S30. The filter bottle 140 has a filter material, a second catalyst, and sodium borohydride powder. The sodium borohydride powder is hydrolyzed by the water vapor to further generate hydrogen gas and heat. It should be noted that in the step, the weight ratio of the second catalyst to the sodium borohydride powder is 1 to 4, and the best hydrogen production effect can be obtained. In addition, the first catalyst is the same material as the second catalyst, such as cobalt. In addition, the filter material includes a molecular sieve to absorb moisture to obtain purer hydrogen.
在步驟S30中，採用導熱裝置160將該過濾瓶140產生之熱量傳導至該反應槽120，而對硼氫化鈉水溶液加溫，以增加水解反應速率及水蒸氣之形成。在此步驟中，該導熱裝置160為熱管。 In step S30, the heat generated by the filter bottle 140 is transferred to the reaction tank 120 by the heat transfer device 160, and the aqueous sodium borohydride solution is heated to increase the hydrolysis reaction rate and the formation of water vapor. In this step, the heat conducting device 160 is a heat pipe.
由上可知，在步驟S20中利用過濾瓶140內少量的水蒸氣對額外的硼氫化鈉粉末進行水解反應，進一步生成氫氣以提高產氫量，並利用在過濾瓶140內的熱量對反應槽120加熱，以提高反應槽120內的化學(硼氫 化鈉水解)反應速率，並且同時增加水蒸氣的產量，以供過濾瓶140內進行額外的水解反應，如此正向循環，而解決了習知硼氫化鈉之水解產氫方法效率低落的問題。 As can be seen from the above, in step S20, the additional sodium borohydride powder is hydrolyzed by a small amount of water vapor in the filter bottle 140 to further generate hydrogen gas to increase the hydrogen production amount, and the heat in the filter bottle 140 is used to react to the reaction tank 120. Heating to increase the chemistry in the reaction tank 120 (boron hydrogen Sodium hydrolysis) The reaction rate, and at the same time, increases the yield of water vapor for additional hydrolysis reaction in the filter bottle 140, thus circulating in the forward direction, thereby solving the problem of the inefficiency of the conventional hydrolyzing hydrogen production method of sodium borohydride.
綜上所述，本發明之水解產氫系統及方法透過含有硼氫化鈉粉末之過濾瓶140接收水蒸氣進一步提高產氫量，同時純化氫氣，完整地解決習知硼氫化鈉之水解產氫效率低落的問題。另一方面，經由導熱裝置160回收過濾瓶140內之熱量，以加熱反應槽120，藉此產生更多水蒸氣同時加速水解產氫之反應速率，同樣地克服了習知硼氫化鈉之水解產氫效率低落的問題。 In summary, the hydrolyzed hydrogen production system and method of the present invention receives water vapor through a filter bottle 140 containing sodium borohydride powder to further increase hydrogen production, and at the same time purify hydrogen to completely solve the hydrolysis hydrogen production efficiency of the conventional sodium borohydride. Low problem. On the other hand, the heat in the filter bottle 140 is recovered via the heat transfer device 160 to heat the reaction tank 120, thereby generating more water vapor while accelerating the reaction rate of hydrolysis hydrogen production, and similarly overcoming the hydrolysis of the conventional sodium borohydride. The problem of low hydrogen efficiency.
雖然本發明以已較佳實施例揭露如上，然其並非用以限定本發明。本發明所屬技術領域中具有通常知識者，在不脫離本發明之精神和範圍內，當可作各種之變更和潤飾。因此，本發明之保護範圍當視後附之申請專利範圍所界定者為準。 Although the present invention has been disclosed above in the preferred embodiments, it is not intended to limit the invention. Various changes and modifications may be made without departing from the spirit and scope of the invention. Therefore, the scope of the invention is defined by the scope of the appended claims.
10‧‧‧水解產氫系統 10‧‧‧ Hydrolysis hydrogen production system
20‧‧‧氫燃料電池 20‧‧‧ Hydrogen fuel cell
120‧‧‧反應槽 120‧‧‧Reaction tank
130‧‧‧管 130‧‧‧ tube
140‧‧‧過濾瓶 140‧‧‧Filter bottle
160‧‧‧導熱裝置 160‧‧‧heat conduction device
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