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1. 发明专利

JP2004091327A Method for separating dimethyl ether 审中-公开
公开(公告)号：JP2004091327A
公开(公告)日：2004-03-25
申请号：JP2002250801
申请日：2002-08-29
申请人： Jfe Holdings Inc , ジェイエフイーホールディングス株式会社
发明人： ONO MASAMI , OGAWA TAKASHI , OKUYAMA KEIICHI , AOKI SEIJI
IPC分类号： C07C41/34 , C07C41/09 , C07C43/04
摘要： PROBLEM TO BE SOLVED: To provide a method with which dimethyl ether and carbon dioxide are separated and recovered in a high separation ratio in a method for reacting carbon monoxide with hydrogen, cooling the resultant product gas containing at least the dimethyl ether, carbon dioxide and unreacted gas components and separating a liquid phase containing the produced dimethyl ether and the carbon dioxide and a gas phase containing the unreacted gas.
SOLUTION: A solution is reached by a method for separating the dimethyl ether characterized by bringing the product gas into contact with the liquid dimethyl ether and methanol and absorbing the carbon dioxide and dimethyl ether contained in the product gas in the method for cooling the product gas containing at least the dimethyl ether, carbon dioxide and unreacted gas components obtained by reacting the carbon monoxide with the hydrogen and separating the liquid phase containing the produced dimethyl ether and carbon dioxide and the gas phase containing the unreacted gas.
COPYRIGHT: (C)2004,JPO

2. 发明专利

JP2004285062A Method and apparatus for preparing dimethyl ether 有权
公开(公告)号：JP2004285062A
公开(公告)日：2004-10-14
申请号：JP2004061170
申请日：2004-03-04
申请人： Jfe Holdings Inc , ジェイエフイーホールディングス株式会社
发明人： OKUYAMA KEIICHI , OGAWA TAKASHI , AOKI SEIJI , SUZUKI TOSHIFUMI , MIYOSHI YASUO
IPC分类号： C01B3/34 , C07B61/00 , C07C41/01 , C07C43/04
摘要： PROBLEM TO BE SOLVED: To provide a method for preparing dimethyl ether which can increase the yield of dimethyl ether by effectively utilizing by-produced methanol.
SOLUTION: In the method for preparing dimethyl ether by introducing a raw material gas containing carbon monoxide and hydrogen into a reactor and subjecting the raw material gas to catalytic reaction to form dimethyl ether and at least methanol as a by-product, the purity of the formed methanol is increased to ≥95 mass% and the purity increased methanol is returned to the above reactor.
COPYRIGHT: (C)2005,JPO&NCIPI

3. 发明专利

JP2004285060A Medium oil for slurry bed reaction system and method for preparing dimethyl ether 有权
公开(公告)号：JP2004285060A
公开(公告)日：2004-10-14
申请号：JP2004060291
申请日：2004-03-04
申请人： Jfe Holdings Inc , ジェイエフイーホールディングス株式会社
发明人： OKUYAMA KEIICHI , OGAWA TAKASHI , AOKI SEIJI , SHIKADA TSUTOMU , MOGI YASUHIRO
IPC分类号： C07C9/16 , C07B61/00 , C07C9/22 , C07C29/151 , C07C31/04 , C07C41/09 , C07C43/04
摘要： PROBLEM TO BE SOLVED: To provide a medium oil which has a high boiling point and a low freezing point, excels in stability, and brings about high reactivity, for example, in the synthesis of dimethyl ether or the like as a medium oil.
SOLUTION: The medium oil is used as a medium in the synthesis reaction of a slurry bed reaction system and comprises a 16-50C branched saturated aliphatic hydrocarbon having 1-7 tertiary carbons, 0 quaternary carbon, a 1-16C branched chain bonded to the tertiary carbon, and at least one tertiary carbon being bonded to hydrocarbon chains having a ≥4C chain length in three directions as the major component.
COPYRIGHT: (C)2005,JPO&NCIPI

4. 发明专利

JP2004284946A Method of producing synthetic gas 审中-公开
公开(公告)号：JP2004284946A
公开(公告)日：2004-10-14
申请号：JP2004061446
申请日：2004-03-04
申请人： Jfe Holdings Inc , ジェイエフイーホールディングス株式会社
发明人： OKUYAMA KEIICHI , OGAWA TAKASHI , AOKI SEIJI , KOBAYASHI NOBUAKI , SUZUKI KAZUMICHI
IPC分类号： C01B3/38 , C01B32/40 , C01B31/18
摘要： PROBLEM TO BE SOLVED: To lower the temperature of the top of a furnace used in producing a synthetic gas.
SOLUTION: In a method of producing a synthetic gas containing carbon monoxide and hydrogen using a fuel gas and an oxidizing agent as raw materials in the presence of a catalyst, a part of the produced synthetic gas is supplied as a part of the raw materials in producing the synthetic gas.
COPYRIGHT: (C)2005,JPO&NCIPI

5. 发明专利

JP2005247645A Synthetic gas production furnace 有权
标题翻译：合成气生产炉
公开(公告)号：JP2005247645A
公开(公告)日：2005-09-15
申请号：JP2004061445
申请日：2004-03-04
申请人： Jfe Holdings Inc , ジェイエフイーホールディングス株式会社
发明人： OKUYAMA KEIICHI , ONO YOTARO , OGAWA TAKASHI , AOKI SEIJI , KOBAYASHI NOBUAKI , SUZUKI KAZUMICHI
IPC分类号： C01B3/38 , C07C41/01 , C07C43/04
摘要： PROBLEM TO BE SOLVED: To optimize a space above a catalyst layer in a synthetic gas reforming furnace where a hydrocarbon is reformed into a synthetic gas containing carbon monoxide and hydrogen.
SOLUTION: The synthetic gas production furnace, in which a source material containing at least a hydrocarbon and an oxidizing agent is injected from a burner disposed at the furnace top and the hydrocarbon is partially combusted in a space over a catalyst layer laid in the furnace to produce a synthetic gas containing hydrogen and carbon monoxide in the catalyst layer, is characterized in that the space over the catalyst layer satisfies the following conditions. They are (1) L≥D/2×cotanθ
1 and (2) the residential time of the gas in the space is 2 seconds or longer: wherein L is the height of the space over the catalyst layer; D is the inner diameter of the furnace; and θ
1 is a half angle of the apex in the cross section of the conical jet flow including the axis jetting from the burner into the furnace and in the range of 6.5°≤θ
1 ≤9°. By disposing the catalyst layer in a downstream side of the position where the all flow directs downward in the cross section of the furnace, the space over the catalyst layer is effectively used to allow the reaction to proceed, which reduces thermal load and reaction load of the catalyst layer.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了优化合成气体重整炉中的催化剂层上方的空间，其中烃被重整成含有一氧化碳和氢的合成气体。解决方案：合成气生产炉，其中从设置在炉顶的燃烧器喷射至少含有烃和氧化剂的源材料，并且将烃部分地在放置在炉顶的催化剂层上的空间中燃烧在催化剂层中产生含有氢和一氧化碳的合成气体的炉子的特征在于催化剂层上的空间满足以下条件。它们是（1）L≥D/ 2×cotanθ 1 和（2）空间中气体的住宅时间为2秒或更长：其中L是催化剂上空间的高度层; D是炉的内径; 并且θ<1> 是锥形喷流的横截面中的顶点的半角，包括从燃烧器喷射到炉中的轴线，并且在6.5°≤θ 1°的范围内， / SB>≤9°。通过将催化剂层设置在全部流动在炉的横截面中向下流动的位置的下游侧，催化剂层上的空间被有效地用于允许反应进行，这降低了热负荷和反应负荷催化剂层。版权所有（C）2005，JPO＆NCIPI

6. 发明专利

JP2004269294A Synthesis gas production method and dimethyl ether production method using synthesis gas 审中-公开
公开(公告)号：JP2004269294A
公开(公告)日：2004-09-30
申请号：JP2003059897
申请日：2003-03-06
申请人： Jfe Holdings Inc , ジェイエフイーホールディングス株式会社
发明人： OKUYAMA KEIICHI , ONO YOTARO , OGAWA TAKASHI , AOKI SEIJI
IPC分类号： C01B3/38 , C07C41/01 , C07C43/04
CPC分类号： Y02P20/582
摘要： PROBLEM TO BE SOLVED: To produce a hydrocarbon-free synthesis gas with a reduced carbon dioxide concentration. SOLUTION: In the method for producing a synthesis gas essentially comprising hydrogen and carbon monoxide, a gas generated through partial combustion of a hydrocarbon is reformed by a catalyst using a synthesis gas-generating furnace wherein a catalytic layer is installed. The outlet temperature of the catalyst layer is kept at 1,100-1,300°C, and the carbon dioxide concentration in the produced synthesis gas is set at ≤10%. COPYRIGHT: (C)2004,JPO&NCIPI

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