JPS63141936A - Direct conversion of methane into formaldehyde, formic acid and methanol by photochemical reaction - Google Patents

Direct conversion of methane into formaldehyde, formic acid and methanol by photochemical reaction

Info

Publication number
JPS63141936A
JPS63141936A JP28994686A JP28994686A JPS63141936A JP S63141936 A JPS63141936 A JP S63141936A JP 28994686 A JP28994686 A JP 28994686A JP 28994686 A JP28994686 A JP 28994686A JP S63141936 A JPS63141936 A JP S63141936A
Authority
JP
Japan
Prior art keywords
methanol
formic acid
methane
formaldehyde
oxygen
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.)
Pending
Application number
JP28994686A
Other languages
Japanese (ja)
Inventor
Kotaro Ogura
興太郎 小倉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP28994686A priority Critical patent/JPS63141936A/en
Publication of JPS63141936A publication Critical patent/JPS63141936A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/08Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J19/12Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electromagnetic waves
    • B01J19/122Incoherent waves
    • B01J19/123Ultraviolet light

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

PURPOSE:To synthesize formaldehyde, formic acid and methanol with small energy consumption in the absence of a catalyst without discharging polluting substances, by photochemically reacting methane with steam and oxygen or air. CONSTITUTION:A mixed gas of methane, steam and oxygen or air is irradiated with light using, e.g. 100W-low pressure mercury lamp, as a light source, to afford formaldehyde, formic acid and methanol in almost equal amounts. The amount of the above-mentioned three products in the reaction product is >=90% and the products can be readily separated since the boiling points differ greatly.

Description

【発明の詳細な説明】 (【7)従来の技術 応させるものである。ギ酸の合成はメタノールを空気と
混合し、白金触媒を用いて行なわれている。また、メタ
ノールは一酸化炭素と水素の混合ガスを300〜400
’C,250〜300気圧で父上1)させて合成してい
る。ポル11アルデヒドとギ酸の合成はい4゛れもメタ
ノールを出発原料としている。
DETAILED DESCRIPTION OF THE INVENTION ([7] This corresponds to the conventional technology. Formic acid is synthesized by mixing methanol with air and using a platinum catalyst. In addition, methanol is a mixed gas of carbon monoxide and hydrogen at 300 to 400
'C, 250 to 300 atmospheres, Father 1) is synthesized. The synthesis of pol-11 aldehyde and formic acid both uses methanol as a starting material.

(ハ)発明が解決しようとする問題点 用(1行なわれているホルムアルデヒド、ギ酸、メタノ
ールの合成は数段の工程を経て行なわれているものであ
り、しかも条件は高温、高圧で1>る、メタノール合成
のために・ピ・要な−6(化炭素と水素はメタンとlK
蒸気からjj)るJj法が効0気圧、酸化514−酸化
;BHIHH糸の触媒を必要とする。ポルノ、アルデヒ
ドとギ酸の合成のためためにはさらにらう一段の1、稈
を経る必要がある。このような合成法はエイ・ルギー消
費、丁場\γ地条件、操業コストの点から今後の発展は
望めない。しかるに、石t111の涸渇がIl1題とな
る20〜30年後において、食料や燃↑1の確保のため
に安価なホルムアルデヒド、ギ酸、メタノールの(jl
H給が不可欠で、’P+る。
(c) For problems to be solved by the invention (1) The synthesis of formaldehyde, formic acid, and methanol is carried out through several steps, and the conditions are high temperature and high pressure. , for the synthesis of methanol, P is necessary -6 (carbon and hydrogen are methane and lK
The Jj method from steam is effective, requires a catalyst of 0 atmospheres, oxidation 514-oxidation; BHIHH yarn. For the synthesis of porn, aldehydes and formic acid, it is necessary to pass through one more stage, the culm. This type of synthesis method cannot be expected to develop in the future due to energy consumption, soil conditions, and operating costs. However, in 20 to 30 years, when the depletion of stone t111 becomes a problem, cheap formaldehyde, formic acid, and methanol (jl1) will be used to secure food and fuel.
H pay is essential, 'P+ru.

(ニ)問題点と解決するための「「q 本発明はこの欠点と除いて、ホルムアルデヒド、ギ酸、
メタノールを掌性にJjいてメタンカリl、 11′I
接合成するものである。メタンは天然ガスとして1F界
中にぴ富に(f“在している。メタンのイ1−効な利用
性が確立していない4:めにその人:1ニーを廃棄して
いる所すらある0本発明はメタンと水蒸気および空気ま
たは酸素から光化学反応を利用し′(ポルムアルテヒド
2ギ酸、メタノールを直接合成することに成功したムの
で。
(d) To solve the problems, the present invention solves the problems by eliminating formaldehyde, formic acid,
The handedness of methanol is Jj, which is methane potassium l, 11'I.
It is used for bonding. Methane exists in the 1F world as natural gas.The effective use of methane has not been established. The present invention has succeeded in directly synthesizing polyalthehyde diformic acid and methanol from methane, water vapor, and air or oxygen using a photochemical reaction.

エネルギー11“i費が少なく、無触媒反応で、P)す
、公害物質を排出しないという11r色をもつものであ
る。
It has low energy consumption, non-catalytic reaction, and does not emit any pollutants.

(ホ) (’r:川と実施例 次に、本発明の実施方法とその生成物について実験結果
を例にあげて説明する。
(e) ('r: River and Examples Next, the method of carrying out the present invention and its products will be explained using experimental results as examples.

第−例 実施(IAlは1気圧、90′Cにおいて、メタンと水
蒸気Bよび酸にの混合ガスに光を照射して1′)られな
生成物(miol)結果である。
This is the result of a product (miol) obtained by irradiating a mixed gas of methane, water vapor B, and an acid with light at 90'C and 1 atmosphere of the 1st Example.

実施例1 反応ガス中に占める酸素の% 17.3 23.2 29.0 35.1 47,6ポ
ルムアルデヒド 9.60 16.70 1B、50 
19.25 16.11ギ酸       14j5 
19.43 25.44 22.36 21.94メタ
ノール   16.76 18.78 18.1B  
15.24 14.03過酸化水素    10.26
 21.12 26.0 .28,1 26.9水素 
     33.51 21.92 10.46 8,
65 7.93(mmol) 実施例1における条件は次の通りである反応槽 液相部
  3dmJ 気相部  12dma 液相の温次  9(]’C 光源  100W−低圧水銀ランプ メタンの流速  +(I113/分 反応時間  3時間 反応生成物としてはこのほかにもeMのエタノール、ケ
トン、エステルがある。また、水の光分解によって生じ
る水素と過酸化水素も(を在する、メタンがらの生成物
としてはホルムアルデヒド、ギ酸、メタノールが90%
以上である。ホルムアルデヒド、メタノール、ギ酸の生
成はほぼ等量である。こ〕Ei17(7)沸点giソt
Lソh  19.3’C、671,5′c、100. 
l’lt’ ト大キ<異なるので生成物の分^「は容易
である。
Example 1 % of oxygen in reaction gas 17.3 23.2 29.0 35.1 47,6 Polmaldehyde 9.60 16.70 1B, 50
19.25 16.11 Formic acid 14j5
19.43 25.44 22.36 21.94 Methanol 16.76 18.78 18.1B
15.24 14.03 Hydrogen peroxide 10.26
21.12 26.0. 28,1 26.9 hydrogen
33.51 21.92 10.46 8,
65 7.93 (mmol) The conditions in Example 1 are as follows: Reaction tank Liquid phase: 3 dmJ Gas phase: 12 dma Temperature of liquid phase: 9 (]'C Light source: 100 W - low pressure mercury lamp Methane flow rate + (I113 /min Reaction time: 3 hours Other reaction products include eM ethanol, ketones, and esters.Hydrogen and hydrogen peroxide produced by photolysis of water are also produced as methane-like products. is 90% formaldehyde, formic acid, and methanol.
That's all. Formaldehyde, methanol, and formic acid are produced in approximately equal amounts. [This] Ei17 (7) boiling point gi sot
L soh 19.3'C, 671,5'c, 100.
l'lt' It is easy to divide the product because it is different.

第二例 実施例2は酸素の存在率28尤のときの各反応時間にお
ける生成物の結果である。
Second Example Example 2 shows the results of products at each reaction time when the oxygen abundance rate was 28%.

実施PA2 反応時間 1時間   2時間   4時間 ホルムアルデヒド   6.17   20.19  
 22.37ギ酸          6.20   
22.27   28.56(rrlmol) 実施例2の反応条件は実施例1と同じである。生成物は
反応時間とともに増大している0反応時間4時間におい
て水素が急増しているのは酸素不足によるものである。
Implementation PA2 Reaction time 1 hour 2 hours 4 hours Formaldehyde 6.17 20.19
22.37 Formic acid 6.20
22.27 28.56 (rrlmol) The reaction conditions of Example 2 are the same as Example 1. The product increases with the reaction time.The rapid increase in hydrogen at 0 reaction time of 4 hours is due to lack of oxygen.

いずれにしろ、反応生成物は時間とともに増大し、メタ
ンの転換率は50%以上に達する。
In any case, the reaction products increase with time, and the methane conversion rate reaches more than 50%.

(へ)発明の効果(f) Effect of invention

Claims (1)

【特許請求の範囲】[Claims] 光化学反応を利用するメタンと水蒸気および酸素または
空気からホルムアルデヒド、ギ酸およびメタノールの直
接合成法。
Direct synthesis of formaldehyde, formic acid, and methanol from methane, water vapor, and oxygen or air using photochemical reactions.
JP28994686A 1986-12-04 1986-12-04 Direct conversion of methane into formaldehyde, formic acid and methanol by photochemical reaction Pending JPS63141936A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP28994686A JPS63141936A (en) 1986-12-04 1986-12-04 Direct conversion of methane into formaldehyde, formic acid and methanol by photochemical reaction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP28994686A JPS63141936A (en) 1986-12-04 1986-12-04 Direct conversion of methane into formaldehyde, formic acid and methanol by photochemical reaction

Publications (1)

Publication Number Publication Date
JPS63141936A true JPS63141936A (en) 1988-06-14

Family

ID=17749782

Family Applications (1)

Application Number Title Priority Date Filing Date
JP28994686A Pending JPS63141936A (en) 1986-12-04 1986-12-04 Direct conversion of methane into formaldehyde, formic acid and methanol by photochemical reaction

Country Status (1)

Country Link
JP (1) JPS63141936A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020002119A (en) * 2017-12-16 2020-01-09 国立大学法人大阪大学 Manufacturing method of oxidation reaction product of hydrocarbon or derivative thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020002119A (en) * 2017-12-16 2020-01-09 国立大学法人大阪大学 Manufacturing method of oxidation reaction product of hydrocarbon or derivative thereof

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