JP5473255B2 - ガス成分調整用活性炭 - Google Patents
ガス成分調整用活性炭 Download PDFInfo
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- JP5473255B2 JP5473255B2 JP2008157088A JP2008157088A JP5473255B2 JP 5473255 B2 JP5473255 B2 JP 5473255B2 JP 2008157088 A JP2008157088 A JP 2008157088A JP 2008157088 A JP2008157088 A JP 2008157088A JP 5473255 B2 JP5473255 B2 JP 5473255B2
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- activated carbon
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- natural gas
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
- C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
- C10L3/10—Working-up natural gas or synthetic natural gas
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28054—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their surface properties or porosity
- B01J20/28069—Pore volume, e.g. total pore volume, mesopore volume, micropore volume
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28054—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their surface properties or porosity
- B01J20/28078—Pore diameter
- B01J20/28083—Pore diameter being in the range 2-50 nm, i.e. mesopores
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/30—Active carbon
- C01B32/312—Preparation
- C01B32/336—Preparation characterised by gaseous activating agents
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Nanotechnology (AREA)
- General Chemical & Material Sciences (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Carbon And Carbon Compounds (AREA)
Description
[1]窒素吸着等温線からBJH法により求めた微分細孔分布において、細孔径2.0nmの細孔容積が単位容積当たり0.5ml/ml以上であり、且つ窒素吸着等温線からBJH法により求めた積分細孔分布において、細孔径3.0nmにおける単位容積当たりの細孔容積から、細孔径2.0nmにおける単位容積当たりの細孔容積を減算した値が0.075ml/ml以上である、天然ガス成分調整用活性炭。
[2]窒素吸着等温線からBJH法により求めた微分細孔分布において、細孔径ピークが1.8〜2.5nmである、[1]に記載の天然ガス成分調整用活性炭。
石炭粉を原料としてコールタール成型し、700℃にて炭化後、H2Oを5.5g/分投入して、水蒸気雰囲気下950℃で8時間賦活し、平均細孔直径が2.9nmになるようJIS篩網にて篩い分けすることで本発明の天然ガス成分調整用活性炭を調製した。
6時間賦活した点を除き実施例1と同様の手法を用い、平均細孔直径が2.4nmである本発明の天然ガス成分調整用活性炭を調製した。
4時間賦活した点を除き実施例1と同様の手法を用い、上述の活性炭と比較してより小さな細孔径を有する活性炭、具体的には平均細孔直径が2.0nmである天然ガス成分調整用活性炭を調製した。
10時間賦活した点を除き実施例1と同様の手法を用い、上述の活性炭と比較してより大きな細孔径を有する活性炭、具体的には平均細孔直径が3.8nmである天然ガス成分調整用活性炭を調製した。
上記活性炭サンプルを約20mg準備し、このサンプルをガラスホルダーに入れ、N2細孔分布分析装置(ユアサアイオニクス社製NOVA3200)において窒素吸脱着を行うことで細孔分布及び細孔容積を測定した(図1及び図2並びに表1を参照のこと)。表1中、「2nmの微分細孔容積」とは、図2に記載の微分細孔分布における微分細孔容積を指し、そして「2nm以上の積分細孔容積」及び「2〜3nm範囲の積分細孔容積」とは、それぞれ、図1に記載の積分細孔分布中の細孔径2.0nm以上の細孔容積の積分値及び細孔径3.0nmにおける単位容積当たりの積分細孔容積から、細孔径2.0nmにおける単位容積当たりの積分細孔容積を減算した値を表す。
上記実施例、参考例及び比較例の活性炭サンプルをそれぞれ100ml正確に量り取った。鋼球を入れた硬さ試験用の皿に当該サンプルを入れて振とうさせた後、ふるいで篩い分け、ふるいの上に残ったサンプルの重量と試験前の重量とを比較した。これらの比率を硬度として算出した(JIS K 1474)。結果を表1に示す。
ASTM(米国材料試験協会;American Society for Testing and Materials)5228に従い、以下の方法を用いて上記活性炭(各15ml)の吸着脱離試験を実施した。
1. 上記活性炭を測定カラムに入れた後、3L/分で天然ガス(メタン:88.6%、エタン:7.0%、プロパン:3.2%、n−ブタン:0.69%、i−ブタン:0.50%、ペンタン:0.05%)を前記測定カラムに流して5℃又は40℃で平衡吸着させる。
2. 上記ガスの入りガスと出ガスの濃度差及び活性炭の重量変動が5%以内になった時点で吸着飽和とみなし平衡吸着工程を終了する。
1. 1L/分で窒素パージを行い、出ガスを20Lのテドラーバッグに保存する。
2. この間の天然ガス濃度の経時変化を測定し、天然ガスの出口濃度が0となるまで繰り返す。
3. 個々のバッグ内に含まれている天然ガス成分濃度を分析する。
4. 各ガス成分の濃度から、以下のように脱離量を算出する:
脱離量(重量%)=(20L×濃度(%)÷100÷24.45(25℃の1モル当たりのガス容量(L)×ガス成分の分子量)÷活性炭重量(g)×100
Claims (3)
- 窒素吸着等温線からBJH法により求めた微分細孔分布において、細孔径ピークが2.0〜2.5nmであり、細孔径2.0nmの細孔容積が単位容積当たり0.5ml/ml以上であり、且つ窒素吸着等温線からBJH法により求めた積分細孔分布において、細孔径3.0nmにおける単位容積当たりの細孔容積から、細孔径2.0nmにおける単位容積当たりの細孔容積を減算した値が0.075ml/ml以上である、天然ガス成分調整用活性炭。
- 平均細孔直径が2.4〜2.9nmである、請求項1に記載の天然ガス成分調整用活性炭。
- 石炭を原料としてコールタールを成型する工程、
前記コールタールを炭化する工程、
前記炭化したコールタールを水蒸気雰囲気下で賦活して活性炭を得る工程、及び
前記活性炭を篩網で篩い分けする工程
を含む方法によって得られる、請求項1に記載の天然ガス成分調整用活性炭。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008157088A JP5473255B2 (ja) | 2008-06-16 | 2008-06-16 | ガス成分調整用活性炭 |
CN200980121578XA CN102056842B (zh) | 2008-06-16 | 2009-06-16 | 用于调整燃气成分的活性炭 |
PCT/JP2009/061268 WO2009154290A1 (ja) | 2008-06-16 | 2009-06-16 | ガス成分調整用活性炭 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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JP2008157088A JP5473255B2 (ja) | 2008-06-16 | 2008-06-16 | ガス成分調整用活性炭 |
Publications (2)
Publication Number | Publication Date |
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JP2009298668A JP2009298668A (ja) | 2009-12-24 |
JP5473255B2 true JP5473255B2 (ja) | 2014-04-16 |
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Application Number | Title | Priority Date | Filing Date |
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JP2008157088A Expired - Fee Related JP5473255B2 (ja) | 2008-06-16 | 2008-06-16 | ガス成分調整用活性炭 |
Country Status (3)
Country | Link |
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JP (1) | JP5473255B2 (ja) |
CN (1) | CN102056842B (ja) |
WO (1) | WO2009154290A1 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6033396B2 (ja) * | 2013-02-20 | 2016-11-30 | 大阪ガスケミカル株式会社 | メソ孔の多い粒状活性炭およびその製造方法 |
CN104995136A (zh) | 2013-02-20 | 2015-10-21 | 大阪燃气化学株式会社 | 粒状活性炭及其制造方法 |
KR20170097137A (ko) * | 2015-03-05 | 2017-08-25 | 가부시키가이샤 캬타라 | 탄소 다공체, 그의 제법 및 암모니아 흡착재, 및 캐니스터 및 그의 제조 방법 |
JP6042922B2 (ja) * | 2015-03-05 | 2016-12-14 | 株式会社豊田中央研究所 | 炭素多孔体、その製法及びアンモニア吸着材 |
JP6471256B1 (ja) * | 2018-05-18 | 2019-02-13 | ユニチカ株式会社 | 脱臭材及び脱臭シート |
JP6683969B1 (ja) * | 2018-06-19 | 2020-04-22 | 株式会社アドール | 活性炭 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
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TW309505B (ja) * | 1993-03-31 | 1997-07-01 | Toto Ltd | |
JP4393747B2 (ja) * | 2002-04-18 | 2010-01-06 | 株式会社キャタラー | 燃料蒸気吸着剤 |
JP2005035812A (ja) * | 2003-07-16 | 2005-02-10 | Cataler Corp | 活性炭とキャニスタ |
CN101218174B (zh) * | 2005-09-29 | 2012-02-29 | 昭和电工株式会社 | 活性炭及其制造方法 |
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2008
- 2008-06-16 JP JP2008157088A patent/JP5473255B2/ja not_active Expired - Fee Related
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2009
- 2009-06-16 WO PCT/JP2009/061268 patent/WO2009154290A1/ja active Application Filing
- 2009-06-16 CN CN200980121578XA patent/CN102056842B/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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CN102056842A (zh) | 2011-05-11 |
WO2009154290A1 (ja) | 2009-12-23 |
CN102056842B (zh) | 2013-07-24 |
JP2009298668A (ja) | 2009-12-24 |
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