JPH0649876B2 - Integrated desulfurization equipment - Google Patents
Integrated desulfurization equipmentInfo
- Publication number
- JPH0649876B2 JPH0649876B2 JP60002104A JP210485A JPH0649876B2 JP H0649876 B2 JPH0649876 B2 JP H0649876B2 JP 60002104 A JP60002104 A JP 60002104A JP 210485 A JP210485 A JP 210485A JP H0649876 B2 JPH0649876 B2 JP H0649876B2
- Authority
- JP
- Japan
- Prior art keywords
- raw material
- gas
- heat exchanger
- material gas
- reactor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
- H01M8/0662—Treatment of gaseous reactants or gaseous residues, e.g. cleaning
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Separation Of Gases By Adsorption (AREA)
- Hydrogen, Water And Hydrids (AREA)
- Fuel Cell (AREA)
- Treating Waste Gases (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は硫黄含有原料ガス中の硫黄を除去するための装
置に関する。TECHNICAL FIELD The present invention relates to an apparatus for removing sulfur in a sulfur-containing feed gas.
（従来の技術） 燃料電池発電プラントでは、原料ガス（例えば、メタ
ン、プロパン、ブタン、ナフサ等）の改質用触媒の被毒
防止のため、原料ガス中の硫黄分を０．１ppm以下に低
減するための脱硫装置が必要である。(Prior Art) In a fuel cell power plant, the sulfur content in the raw material gas is reduced to 0.1 ppm or less to prevent poisoning of the reforming catalyst for the raw material gas (eg, methane, propane, butane, naphtha, etc.). Desulfurization equipment is required to do so.
第２図に従来の脱硫装置を示す。第２図において、原料
ガス（Ｓ分大）１は硫黄水添反応用の水素と混合（一般
にH2vol／原料vol＝０．１〜０．２の割合で）後、脱硫
触媒所用温度まで原料加熱器３で加熱される。この加熱
は、後述する改質炉から改質ガス９を熱源として約８３
〜１００℃／Ｈｒの昇温速度で間接加熱により行われ、
熱回収された改質ガス１０は系外へ抜出される。次に、
反応塔５で水添反応により硫黄は硫化水素（H2S）へ還
元される（H2＋S→H2S）。該反応塔５は、一般に、NiO-
M0O3等の触媒が用いられ、入口温度範囲は２３０℃以上
で原料が分解しない４５０℃以下に保持される。FIG. 2 shows a conventional desulfurization device. In FIG. 2, the raw material gas (large amount of S) 1 is mixed with hydrogen for the sulfur hydrogenation reaction (generally at a ratio of H 2 vol / raw material vol = 0.1 to 0.2), and then to the temperature required for the desulfurization catalyst. It is heated by the raw material heater 3. This heating is performed using the reformed gas 9 as a heat source from the reforming furnace described later for about 83
By indirect heating at a heating rate of ~ 100 ° C / Hr,
The reformed gas 10 from which the heat has been recovered is extracted from the system. next,
Sulfur is reduced to hydrogen sulfide (H 2 S) by the hydrogenation reaction in the reaction tower 5 (H 2 + S → H 2 S). The reaction tower 5 is generally made of NiO-
A catalyst such as M 0 O 3 is used, and the inlet temperature range is maintained at 230 ° C. or higher and 450 ° C. or lower at which the raw material does not decompose.
該反応塔５を出た硫化水素を含む原料ガス６は吸着塔７
へ送られる。この吸着塔７は、一般に、ZnO等の触媒
（吸着剤）が使用され、入口温度範囲は２０５〜４２５
℃程度に保持される。該吸着塔７で原料ガス中の硫化水
素が、例えばH2S＋ZnO→ZnS＋H2Oの反応を生起し、ZnS
の形で吸着剤ZnO中へ吸着され、原料ガス中の硫黄分が
除去される。The raw material gas 6 containing hydrogen sulfide that has exited the reaction tower 5 is an adsorption tower 7
Sent to. This adsorption tower 7 generally uses a catalyst (adsorbent) such as ZnO and has an inlet temperature range of 205 to 425.
It is kept at about ℃. In the adsorption tower 7, hydrogen sulfide in the raw material gas causes a reaction of, for example, H 2 S + ZnO → ZnS + H 2 O, and ZnS
Is adsorbed in the adsorbent ZnO in the form of, and the sulfur content in the source gas is removed.
以上のようにして硫黄分が除去された原料ガス８は改質
炉（図示省略）へ送られ、燃料電池発電用に用いられ、
得られた改質ガス９は上述のように原料ガス１の加熱源
として加熱器３へ送られる。The raw material gas 8 from which the sulfur content has been removed as described above is sent to a reforming furnace (not shown) and used for fuel cell power generation,
The obtained reformed gas 9 is sent to the heater 3 as a heating source of the raw material gas 1 as described above.
（発明が解決しようとする問題点） しかしながら、発電出力４００kW程度の小規模燃料電池
発電プラントでは、上述の脱硫装置の機器からの放散熱
量がプラント効率に及ぼす影響が大きく、かつ該装置の
配置の点からも過大なスペースを必要とする等の欠点が
ある。(Problems to be Solved by the Invention) However, in a small-scale fuel cell power generation plant with a power generation output of about 400 kW, the amount of heat dissipated from the desulfurization device described above has a large effect on plant efficiency, and the arrangement of the device is From the point of view, there is a drawback that it requires an excessive space.
本発明は、上述の３種類の機器から構成されていた従来
の脱硫装置を一体化し、放散熱量を低減し、かつ装置全
体をコンパクト化することを目的としてなされたもので
ある。The present invention has been made for the purpose of integrating a conventional desulfurization device, which is composed of the above-mentioned three types of equipment, to reduce the amount of heat dissipated and to make the entire device compact.
（問題点を解決するための手段） 本発明は、上記問題点を、脱硫触媒の所用温度に昇温す
る原料加熱器と、脱硫装置を一体化し、この一体化装置
の中央部に熱交換器を設置することにより解決するもの
である。(Means for Solving Problems) The present invention solves the above problems by integrating a desulfurization apparatus with a raw material heater that raises the temperature to a required temperature of a desulfurization catalyst, and a heat exchanger at the center of the integrated apparatus. The solution is to install.
すなわち本発明は、加熱ガスを流通する外管と原料ガス
及び水素を流通する内管よりなる熱交換器、該熱交換器
の上部周囲に設けられかつ加熱された原料ガス及び水素
と連通する反応器、及び前記熱交換器の下部周囲に設け
られかつ反応器からの流出する反応ガスと連通する吸着
器よりなることを特徴とする一体型脱硫装置に関するも
のである。That is, the present invention is a heat exchanger comprising an outer tube for flowing a heating gas and an inner tube for flowing a raw material gas and hydrogen, a reaction provided around the upper portion of the heat exchanger and communicating with the heated raw material gas and hydrogen. The present invention relates to an integrated desulfurization device comprising a reactor and an adsorber provided around the lower part of the heat exchanger and communicating with a reaction gas flowing out from the reactor.
本発明装置によれば、放散熱量が低減し、かつ触媒の取
り替えのためのメインテナンススペースを減少できるた
め作業を容易にすることができる。According to the device of the present invention, the amount of heat dissipated can be reduced and the maintenance space for replacing the catalyst can be reduced, so that the work can be facilitated.
第１図は本発明装置の一実施態様例を示す図である。第
１図中、第２図と同一符号は第１図と同一部を示す。FIG. 1 is a diagram showing an embodiment of the device of the present invention. In FIG. 1, the same reference numerals as those in FIG. 2 indicate the same parts as those in FIG.
第１図において、硫黄分を多く含む原料ガス（以下、生
原料と呼ぶ）１は、水添用の水素２と混合（混合割合
は、前述の従来のものと同じ）後、脱硫装置中央部に設
置された原料加熱器３で、脱硫触媒の活性温度域（３５
０〜４００℃）まで昇温される。In FIG. 1, a raw material gas (hereinafter referred to as a raw material) 1 containing a large amount of sulfur is mixed with hydrogen 2 for hydrogenation (the mixing ratio is the same as the above-mentioned conventional one), and then the central portion of the desulfurization apparatus. In the raw material heater 3 installed in the
The temperature is raised to 0 to 400 ° C.
昇温された生原料４は、脱硫装置環状部の上側にある反
応器５に至り、ここで該原料４中の硫黄が水素と水添反
応を起こし、硫化水素に還元される。この硫化水素を含
む原料６は吸着器７に至り、硫化水素が吸着される。こ
のようにして硫黄分が除去された原料（Ｓ分０．１vol
ppm以下、dry base）８は改質炉（図示省略）へ送られ
る。The heated raw material 4 reaches the reactor 5 above the annular portion of the desulfurization device, where the sulfur in the raw material 4 undergoes a hydrogenation reaction with hydrogen and is reduced to hydrogen sulfide. The raw material 6 containing this hydrogen sulfide reaches the adsorber 7 where hydrogen sulfide is adsorbed. Raw materials from which sulfur was removed in this way (S content 0.1 vol
Below ppm, dry base 8 is sent to a reforming furnace (not shown).
なお、反応器５の触媒、吸着器７の触媒（吸着剤）は、
前述の従来のものと同様のものが使用される。The catalyst of the reactor 5 and the catalyst (adsorbent) of the adsorber 7 are
The same as the above-mentioned conventional one is used.
（発明の効果） (1) 小規模脱硫装置の構成機器数を削減（３台→１
台）することができ、この結果、装置スペースをも低減
することができる。(Effect of the invention) (1) Reduce the number of components of small-scale desulfurization equipment (3 units → 1
Therefore, the device space can be reduced as a result.
(2) 加熱器３が装置の中心にあり、しかも機器を一体
化して表面積を減少し得たために、脱硫装置からの放散
熱量を低減することができる。(2) Since the heater 3 is located at the center of the device and the device can be integrated to reduce the surface area, the amount of heat dissipated from the desulfurization device can be reduced.
(3) 反応器５、吸着器７の触媒は寿命（２年程度）が
限られており、取替えが必要であるが、本発明では触媒
取替えが１ケ所ででき、そのためのメイテナンススペー
スが少なくて済み、作業が容易になる。(3) The catalysts in the reactor 5 and the adsorber 7 have a limited life (about 2 years) and need to be replaced. However, in the present invention, the catalyst can be replaced in one place, which reduces the maintenance space. And work becomes easier.
第１図は本発明装置の一実施態様例を示す図、第２図は
従来装置を示す図である。FIG. 1 is a diagram showing an embodiment of the device of the present invention, and FIG. 2 is a diagram showing a conventional device.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 野村 真一 長崎県長崎市飽の浦町１番１号 三菱重工 業株式会社長崎造船所内 (72)発明者 国貞 篤典 長崎県長崎市飽の浦町１番１号 三菱重工 業株式会社長崎造船所内 (72)発明者 西川 秀紹 長崎県長崎市飽の浦町１番１号 三菱重工 業株式会社長崎造船所内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Shinichi Nomura 1-1, Atsunoura-machi, Nagasaki-shi, Nagasaki Mitsubishi Heavy Industries, Ltd. Nagasaki Shipyard (72) Inventor Atsunori Kunisada 1-1, Atsunoura-cho, Nagasaki-shi, Nagasaki Mitsubishi Heavy Industry Co., Ltd. Nagasaki Shipyard (72) Inventor Hidesho Nishikawa 1-1 1-1 Atsunoura-machi, Nagasaki-shi, Nagasaki Mitsubishi Heavy Industries Ltd. Nagasaki Shipyard
Claims (1)
素を流通する内管よりなる熱交換器、該熱交換器の上部
周囲に設けられかつ加熱された原料ガス及び水素と連通
する反応器、及び前記熱交換器の下部周囲に設けられか
つ反応器からの流出する反応ガスと連通する吸着器より
なることを特徴とする一体型脱硫装置。1. A heat exchanger comprising an outer tube through which a heating gas flows and an inner tube through which a raw material gas and hydrogen flow, and a reaction provided around the upper portion of the heat exchanger and communicating with the heated raw material gas and hydrogen. An integrated desulfurization device comprising a reactor and an adsorber provided around the lower portion of the heat exchanger and communicating with a reaction gas flowing out from the reactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60002104A JPH0649876B2 (en) | 1985-01-11 | 1985-01-11 | Integrated desulfurization equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60002104A JPH0649876B2 (en) | 1985-01-11 | 1985-01-11 | Integrated desulfurization equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61163568A JPS61163568A (en) | 1986-07-24 |
| JPH0649876B2 true JPH0649876B2 (en) | 1994-06-29 |
Family
ID=11520034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60002104A Expired - Fee Related JPH0649876B2 (en) | 1985-01-11 | 1985-01-11 | Integrated desulfurization equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0649876B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2812486B2 (en) * | 1989-05-15 | 1998-10-22 | 大阪瓦斯株式会社 | Hydrocarbon steam reforming method |
| JP2993507B2 (en) * | 1989-05-17 | 1999-12-20 | 大阪瓦斯株式会社 | Fuel cell power generation system |
| JP2765950B2 (en) * | 1989-05-16 | 1998-06-18 | 大阪瓦斯株式会社 | Fuel cell power generation system |
| JP4862449B2 (en) * | 2006-03-27 | 2012-01-25 | 株式会社Ｉｈｉ | Desulfurizer |
| JP5782400B2 (en) * | 2012-03-28 | 2015-09-24 | Ｊｘ日鉱日石エネルギー株式会社 | Desulfurization system, hydrogen production system, fuel cell system, fuel desulfurization method, and hydrogen production method |
-
1985
- 1985-01-11 JP JP60002104A patent/JPH0649876B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61163568A (en) | 1986-07-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |