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公开(公告)号：KR1020040035998A
公开(公告)日：2004-04-30
申请号：KR1020020064740
申请日：2002-10-23
Applicant: 한국과학기술연구원
IPC: C01B3/22
CPC classification number: C01B3/24 , B01J19/2415 , C01B2203/1241
Abstract: PURPOSE: Provided is a thermal decomposition method of methane to simultaneously produce hydrogen gas and carbon black, the method capable of preventing deposit of carbon black on a reactor, thereby preventing operation stop of a reactor and operating a reactor for long time. CONSTITUTION: In an apparatus having a perforated inner pipe(11), an outer pipe(12) coaxially surrounding the inner pipe, and a heater(13) installed on the outside of the outer pipe for heating the inner and outer pipes, the method comprises steps of introducing methane to the inner pipe while introducing hydrogen to a space between the inner pipe and the outer pipe, and heating the pipes at a temperature of 950 to 1300°C. wherein residence time of the methane in a reactor is 0.5 to 3 minutes.
Abstract translation: 目的：提供甲烷同时产生氢气和炭黑的热分解方法，该方法能够防止炭黑沉积在反应器上，从而防止反应器的操作停止并长时间操作反应器。 构成：在具有穿孔内管（11）的装置中，同轴地围绕内管的外管（12）和安装在外管外侧的用于加热内管和外管的加热器（13），该方法 包括在将氢引入内管和外管之间的空间的同时将甲烷引入内管并在950-1300℃的温度下加热管的步骤。 其中甲烷在反应器中的停留时间为0.5-3分钟。
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公开(公告)号：KR1020040004799A
公开(公告)日：2004-01-16
申请号：KR1020020038830
申请日：2002-07-05
Applicant: 한국과학기술연구원
IPC: C01B3/14
CPC classification number: C01B3/24 , C01B2203/1241 , C09C1/48
Abstract: PURPOSE: A method for the co-production of hydrogen and carbon black by thermal cracking of natural gas without emitting carbon dioxide is provided. CONSTITUTION: The method comprises the steps of introducing natural gas such as methane into a tubular reactor(11); heating the natural gas at 1100 to 1200 deg.C, and separating hydrogen gas using a hydrogen-methane separator(12) such as membrane filtration or adsorption process, wherein the retention time of the natural gas in the reactor is about 0.3 to 0.5 sec.
Abstract translation: 目的：提供通过天然气的热裂解而不排放二氧化碳共同生产氢和炭黑的方法。 构成：该方法包括将天然气如甲烷引入管式反应器（11）中的步骤; 在1100〜1200℃加热天然气，使用膜过滤或吸附法等氢甲烷分离器（12）分离氢气，其中天然气在反应器中的停留时间为约0.3〜0.5秒 。
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公开(公告)号：KR100405189B1
公开(公告)日：2003-11-12
申请号：KR1020010007884
申请日：2001-02-16
Applicant: 한국과학기술연구원
IPC: C09K5/04
CPC classification number: C09K5/045 , C09K2205/12 , C09K2205/43
Abstract: The present invention relates to a refrigerant composition of four-constituent system, comprising: (a) a first constituent of difluoromethane, (b) a second constituent of 1,1,1,2,3,3,3-heptafluoropropane, (c) a third constituent selected from the group consisting of 1,1,1,2-tetrafluoroethane and 1,1-difluoroethane and (d) a for the constituent selected from the group consisting of isobutane, 1,1,1,2,3,3,-hexafluoropropane and butane, useful as a substitute for chlorodifluoromethane (HCFC-22).
Abstract translation: （a）二氟甲烷的第一组分，（b）1,1,1,2,3,3,3-七氟丙烷的第二组分，（c） ）选自1,1,1,2-四氟乙烷和1,1-二氟乙烷的第三组分和（d）选自异丁烷，1,1,1,2,3 ，3， - 六氟丙烷和丁烷，可用作氯二氟甲烷（HCFC-22）的替代品。
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公开(公告)号：KR1020030066479A
公开(公告)日：2003-08-09
申请号：KR1020030033617
申请日：2003-05-27
Applicant: 한국과학기술연구원
IPC: C09K5/04
CPC classification number: C09K5/045 , C09K2205/12 , C09K2205/122 , C09K2205/40 , C09K2205/43 , F25B9/006
Abstract: PURPOSE: Provided is a mixed coolant composition having new composition, which can show similar ability to that of the existing HCFC-22, and does not have the danger such as destruction of the ozone layer. CONSTITUTION: The mixed coolant composition for low temperature freezers, containing a mixture of fluorinated hydrocarbons, comprises a mixture containing 40-70 wt% of difluoromethane(HFC-32), 10-40 wt% of 1,1-difluoroethane(HFC-152a), and 10-20 wt% of 1,1,1,2,3,3,3-heptafluoropropane(HFC-227ea); and 5-15 wt% of isobutane(R-600a). Also, the mixed coolant composition comprises a mixture containing 50-70 wt% of difluoromethane(HFC-32), 10-30 wt% of 1,1-difluoroethane(HFC-152a), and 10-20 wt% of 1,1,1,2,3,3,3-heptafluoropropane(HFC-227ea); and 5-15 wt% of 1,1,1,2,3,3-hexafluoropropane(HFC-236ea).
Abstract translation: 目的：提供具有新组成的混合冷却剂组合物，其可以显示与现有HCFC-22相似的能力，并且不具有诸如破坏臭氧层的危险。 构成：含有氟化烃混合物的低温冷冻机混合冷却剂组合物包括含40-70重量％二氟甲烷（HFC-32），10-40重量％1,1-二氟乙烷（HFC-152a） ）和10-20重量％的1,1,1,2,3,3,3-七氟丙烷（HFC-227ea）; 和5-15重量％的异丁烷（R-600a）。 此外，混合冷却剂组合物包含含有50-70重量％的二氟甲烷（HFC-32），10-30重量％的1,1-二氟乙烷（HFC-152a）和10-20重量％的1,1 ，1,2,3,3,3-七氟丙烷（HFC-227ea的）; 和5-15重量％的1,1,1,2,3,3-六氟丙烷（HFC-236ea）。
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公开(公告)号：KR1020020064027A
公开(公告)日：2002-08-07
申请号：KR1020010004623
申请日：2001-01-31
Applicant: 한국과학기술연구원
Abstract: PURPOSE: Provided is a coolant composition substituted for chlorodifluoromethane(CHClF2, HCFC-22), which dose not contain the material destroying an ozone layer. CONSTITUTION: The coolant composition comprises: difluoromethane(CH2F2, HFC-32); 1,1,1-trifluoroethane(CH3CF3, HFC-143a); 1,1,1,2,3,3,3-heptafluoropropane(CF3CHFCF3, HFC-227ea); a compound selected from the group consisting of isobutane(CH(CH3)2CH3, R-600a), 1,1,1,2,3,3-hexafluoropropane(CHF2CHFCF3, HFC-236ea), and butane(C4H10, R-600). The composition of HFC-32, HFC-143a, HFC-227ea, and R-600a is 40-55wt%, 20-40wt%, 10-20wt%, and 5-15wt%. And the composition of HFC-32, HFC-143a, HFC-227ea, and HFC-236ea is 40-70wt%, 10-40wt%, 10-20wt%, and 5-15wt%.
Abstract translation: 目的：提供一种代替氯二氟甲烷（CHClF2，HCFC-22）的冷却剂组合物，其不含有破坏臭氧层的材料。 构成：冷却剂组合物包含：二氟甲烷（CH 2 F 2，HFC-32）; 1,1,1-三氟乙烷（CH 3 CF 3，HFC-143a）; 1,1,1,2,3,3,3-七氟丙烷（CF 3 CHFCF 3，HFC-227ea）; 选自异丁烷（CH（CH 3）2 CH 3，R-600a），1,1,1,2,3,3-六氟丙烷（CHF 2 CHFCF 3，HFC-236ea）和丁烷（C 4 H 10，R-600 ）。 HFC-32，HFC-143a，HFC-227ea和R-600a的组成为40-55wt％，20-40wt％，10-20wt％和5-15wt％。 HFC-32，HFC-143a，HFC-227ea和HFC-236ea的组成为40-70wt％，10-40wt％，10-20wt％和5-15wt％。
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Patent Agency Ranking
公开(公告)号：KR100305905B1
公开(公告)日：2001-09-13
申请号：KR1020010034610
申请日：2001-06-19
Applicant: 한국과학기술연구원
IPC: C09K5/04
Abstract: 본발명은제 1 성분으로디플루오로메탄(CHF, HFC-32)을포함하고, 제 2 성분및 제 3 성분으로퍼플루오로프로판(CF, PFC-218)과 1,1-디플루오로에탄(CHCHF, HFC-152a), 또는사이클로프로판(CH, RC-270)과 1,1,1,2,2-펜타플루오로프로판(CHCFCF, HFC-245cb), 또는부탄(CH, R-600)과비스(디플루오로메틸)에테르(CHFOCHF, HFE-134)를포함하는 HCFC-22 대체용냉매혼합물을제공한다.
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公开(公告)号：KR100305080B1
公开(公告)日：2001-09-12
申请号：KR1019980057665
申请日：1998-12-23
Applicant: 한국과학기술연구원
IPC: C09K5/04
Abstract: 본 발명은 제 1 성분으로 디플루오로메탄(CH
3 F
2 , HFC-32), 제 2 성분으로 1,1,1-트리플루오로에탄(CH
3 CF
3 , HFC-143a)를 포함하고, 제 3 성분으로 사이클로프로판(C
3 H
6 , RC-270), 1,1,1,2,3,3,3-헵타플루오로프로판(CF
3 CHFCF
3 , HFC-227ea), 1,1,1,2,2-펜타플루오로프로판(CH
3 CF
2 CF
3 , HFC-245cb), 1,1,1,2,3,3-헥사플루오로프로판(CHF
2 CHFCF
3 , HFC-236ea), 부탄(C
4 H
10 , R-600), 비스(디플루오로메틸)에테르(CHF
2 OCHF
2 , HFE-134) 및 펜타플루오로에틸메틸에테르(CF
3 CF
2 OCH
3 , HFE-245)로 이루어진 군 중에서 선택된 어느 한 성분으로 이루어진 HCFC-22 대체용 냉매 혼합물을 제공한다.-
公开(公告)号：KR1020010074657A
公开(公告)日：2001-08-04
申请号：KR1020010034610
申请日：2001-06-19
Applicant: 한국과학기술연구원
IPC: C09K5/04
CPC classification number: C09K5/045 , C09K2205/122 , C09K2205/128 , C09K2205/43
Abstract: PURPOSE: A refrigerant mixture for HCFC-22 substitute is provided. HCFC-22 is one of CFC's which are found to destroy the ozone layer and their production and usage are regulated by Montreal Protocol. Now HFC-407C and HFC-410A are mostly used as the substitutes. The refrigerant substitute in this invention, in various tests, shows identical quality with above HFC-407C and HFC-410A. CONSTITUTION: The mixture composition consists of difluoromethane (CH3F2, HFC-32) as no. 1 component and no. 2 and no. 3 components such as perfluroropropane (C3F8, PFC-218), 1,1-difluoroethane (CH3CHF2, HFC-152a), cyclopropane (C3H6, RC0270), 1,1,1,2,2,-penta-fluoropropane (CH3CF2CF3, HFC-245cb), butane (C4H10, R-600) and bis(diflurormethyl)-ether (CHF2OCHF2, HFE-134). Three kinds of formulations are exampled; 40-70wt.% HFC-32, 5-40wt.% PFC-218 and 10-40wt.% HFC-152a; 50-70wt.% of HFC-32, 5-28wt.% RC-270 and 20-40wt.% HFC-245cb, and the last one with 80-96wt.% HFC-32, 1-12wt% R-600 and 20-40wt% HFC-134.
Abstract translation: 目的：提供用于HCFC-22替代品的制冷剂混合物。 HCFC-22是被认定破坏臭氧层的氟氯化碳之一，其生产和使用受“蒙特利尔议定书”的管理。 现在HFC-407C和HFC-410A主要用作替代品。 本发明中的制冷剂替代品在各种试验中显示出与上述HFC-407C和HFC-410A相同的质量。 构成：混合物组成由二氟甲烷（CH3F2，HFC-32）组成。 1组件和否。 2和否 3组分如全氟丙烷（C 3 F 8，PFC-218），1,1-二氟乙烷（CH 3 CHF 2，HFC-152a），环丙烷（C 3 H 6，RC 0270），1,1,1,2,2-五氟丙烷（CH 3 CF 2 CF 3， HFC-245cb），丁烷（C4H10，R-600）和双（二氟甲基） - 醚（CHF2OCHF2，HFE-134）。 三种制剂的样品; 40-70重量％HFC-32,5-40重量％PFC-218和10-40重量％HFC-152a; 50-70重量％的HFC-32,5-28重量％RC-270和20-40重量％HFC-245cb，最后一个具有80-96重量％的HFC-32,1-12重量％的R-600和 20-40wt％HFC-134。
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公开(公告)号：KR1020000041710A
公开(公告)日：2000-07-15
申请号：KR1019980057664
申请日：1998-12-23
Applicant: 한국과학기술연구원
IPC: C09K5/04
CPC classification number: C09K5/045 , C09K2205/112 , C09K2205/12 , C09K2205/128 , C09K2205/43
Abstract: PURPOSE: A refrigerant mixture added one component of PFC-218 and HFC-152a, RC-270 and HFC-245cb, or R-600 and HFE-134 to HFC-32 is provided which exhibits performance similar to HCFC-22. CONSTITUTION: A refrigerant mixture free from ozonosphere destruction danger, which can be used as a substitute for chlorodifluoromethane(CHClF2) comprises difluoromethane(CH3F2, HFC-32) as a first component, perfluoropropane(C3F8, FC-218) and 1,1-difluoroethane(CH3CHF2, HFC-152a), or cyclopropane(C3H6, RC-270) and 1,1,1,2,2-pentafluoropropane(CH3CF2CF3, HFC-245cb), or butane(C4H10, R-600) and bis(difluoromethyl)ether(CHF2OCHF2, HFC-134) as a second component and third component. The composition of HFC-32, PFC-218 and HFC-152a is 40 to 70% by weight, 5 to 40% by weight and 10 to 40% by weight respectively.
Abstract translation: 目的：提供一种制冷剂混合物，其中将PFC-218和HFC-152a，RC-270和HFC-245cb，或R-600和HFE-134的一个组分加入到HFC-32中，其表现出类似于HCFC-22的性能。 构成：可用作替代氯二氟甲烷（CHClF 2）的不含臭氧层破坏危险的制冷剂混合物包括作为第一组分的二氟甲烷（CH 3 F 2，HFC-32），全氟丙烷（C 3 F 8，FC-218）和1,1- 二氟乙烷（CH3CHF2，HFC-152a）或环丙烷（C3H6，RC-270）和1,1,1,2,2-五氟丙烷（CH3CF2CF3，HFC-245cb）或丁烷（C4H10，R-600）和双 二氟甲基）醚（CHF2OCHF2，HFC-134）作为第二成分和第三成分。 HFC-32，PFC-218和HFC-152a的组成分别为40〜70重量％，5〜40重量％，10〜40重量％。
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