KR100748740B1 - Method for testing poisoning element catalytic accoding tto the sulfur content of fuel - Google Patents
Method for testing poisoning element catalytic accoding tto the sulfur content of fuel Download PDFInfo
- Publication number
- KR100748740B1 KR100748740B1 KR1020050112150A KR20050112150A KR100748740B1 KR 100748740 B1 KR100748740 B1 KR 100748740B1 KR 1020050112150 A KR1020050112150 A KR 1020050112150A KR 20050112150 A KR20050112150 A KR 20050112150A KR 100748740 B1 KR100748740 B1 KR 100748740B1
- Authority
- KR
- South Korea
- Prior art keywords
- fuel
- sulfur
- poisoning
- test
- sulfur content
- Prior art date
Links
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title claims abstract description 78
- 239000011593 sulfur Substances 0.000 title claims abstract description 78
- 229910052717 sulfur Inorganic materials 0.000 title claims abstract description 78
- 239000000446 fuel Substances 0.000 title claims abstract description 60
- 238000012360 testing method Methods 0.000 title claims abstract description 30
- 231100000572 poisoning Toxicity 0.000 title claims abstract description 25
- 230000000607 poisoning effect Effects 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000003197 catalytic effect Effects 0.000 title description 7
- RMVRSNDYEFQCLF-UHFFFAOYSA-N thiophenol Chemical compound SC1=CC=CC=C1 RMVRSNDYEFQCLF-UHFFFAOYSA-N 0.000 claims abstract description 60
- 239000003054 catalyst Substances 0.000 claims description 19
- 238000010998 test method Methods 0.000 claims description 10
- 150000003464 sulfur compounds Chemical class 0.000 claims description 5
- 238000009654 indole test Methods 0.000 claims description 4
- 238000005259 measurement Methods 0.000 claims description 4
- 238000000746 purification Methods 0.000 claims description 3
- 230000001050 lubricating effect Effects 0.000 claims description 2
- QGJOPFRUJISHPQ-NJFSPNSNSA-N carbon disulfide-14c Chemical compound S=[14C]=S QGJOPFRUJISHPQ-NJFSPNSNSA-N 0.000 abstract description 4
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 description 24
- 230000006866 deterioration Effects 0.000 description 7
- SIKJAQJRHWYJAI-UHFFFAOYSA-N Indole Chemical compound C1=CC=C2NC=CC2=C1 SIKJAQJRHWYJAI-UHFFFAOYSA-N 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 231100000614 poison Toxicity 0.000 description 4
- 238000009835 boiling Methods 0.000 description 3
- 230000009849 deactivation Effects 0.000 description 3
- PZOUSPYUWWUPPK-UHFFFAOYSA-N indole Natural products CC1=CC=CC2=C1C=CN2 PZOUSPYUWWUPPK-UHFFFAOYSA-N 0.000 description 3
- RKJUIXBNRJVNHR-UHFFFAOYSA-N indolenine Natural products C1=CC=C2CC=NC2=C1 RKJUIXBNRJVNHR-UHFFFAOYSA-N 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000002427 irreversible effect Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000002574 poison Substances 0.000 description 2
- 230000007096 poisonous effect Effects 0.000 description 2
- 239000012495 reaction gas Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- XAQHXGSHRMHVMU-UHFFFAOYSA-N [S].[S] Chemical compound [S].[S] XAQHXGSHRMHVMU-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 125000001041 indolyl group Chemical group 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/22—Fuels; Explosives
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/26—Oils; Viscous liquids; Paints; Inks
- G01N33/28—Oils, i.e. hydrocarbon liquids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
- F01N2570/04—Sulfur or sulfur oxides
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- Immunology (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Pathology (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Toxicology (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Gas After Treatment (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
본 발명은 연료중의 황성분에 의한 피독 여부 시험 방법에 관한 것이다.The present invention relates to a method for testing poisoning by sulfur components in fuel.
이를 위해, 본 발명은 연료중의 황함량 조정을 티오페놀을 사용하여, 기존에 이황화탄소를 사용함에 따른 황 농도의 오차 발생을 줄여줌으로써, 황 농도 조절 작업의 용이성을 제공할 수 있고, 그에 따라 황피독 시험시 연료 중의 황함량 증가에 따른 HC, CO, NOx 등의 유해 배출가스의 배출량을 정확하게 측정 시험할 수 있는 연료중의 황성분에 의한 피독 여부 시험 방법을 제공하고자 한 것이다.To this end, the present invention by using thiophenol to adjust the sulfur content in the fuel, by reducing the error of sulfur concentration due to the conventional use of carbon disulfide, it is possible to provide an easy operation of the sulfur concentration control, accordingly The purpose of this study was to provide a method for testing poisoning by sulfur components in fuel, which can accurately measure and test emissions of harmful emissions such as HC, CO, and NOx as sulfur content in fuel increases.
티오페놀, 이황화탄소, 황 농도, 차량의 배기 시험 Thiophenol, carbon disulfide, sulfur concentration, vehicle exhaust test
Description
도 1은 본 발명에 따른 연료중의 황성분에 의한 피독 여부 시험 방법을 설명하는 공정 흐름도,1 is a process flow diagram illustrating a test method for poisoning by sulfur components in a fuel according to the present invention;
도 2a,2b,2c는 황함량이 변경된 연료를 활용한 차량의 배기시험을 실시한 예의 그래프.2A, 2B and 2C are graphs of an example of an exhaust test of a vehicle utilizing fuel having a changed sulfur content;
본 발명은 연료중의 황성분에 의한 피독 여부 시험 방법에 관한 것으로서, 더욱 상세하게는 연료중의 황함량 조정을 티오페놀을 사용하여, 기존에 이황화탄소를 사용함에 따른 황 농도의 오차 발생을 줄여줌으로써, 황 농도 조절 작업의 용이성을 제공할 수 있고, 그에 따라 황피독 시험시 연료 중의 황함량 증가에 따른 HC, CO, NOx 등의 유해 배출가스의 배출량을 정확하게 측정 시험할 수 있는 연료중의 황성분에 의한 피독 여부 시험 방법에 관한 것이다.The present invention relates to a method for testing poisoning by sulfur components in fuel, and more specifically, by adjusting thiophenol in sulfur content in fuel, by reducing the occurrence of an error in sulfur concentration by using carbon disulfide. In addition, it is possible to provide easy control of sulfur concentration, and accordingly, sulfur sulfur in fuel can be accurately measured and tested for emission of harmful emissions such as HC, CO and NOx according to the increase of sulfur content in fuel during sulfur poisoning test. The present invention relates to a method for testing whether poisoning occurs.
통상적으로, 차량 배출시험에 있어서 결과에 많은 영향을 미치는 요소로서는 엔진 제어 시스템과 촉매 컨버터에 있으며, 그 중에서 촉매컨버터는 화학반응을 이용하여 유해성분을 무해성분으로 전환시키는 핵심요소이다.Typically, engine control systems and catalytic converters have a significant effect on the results in vehicle emission tests. Among them, catalytic converters are a key factor in converting harmful components into harmless components using chemical reactions.
차량의 내구 주행 동안에 촉매컨버터 내부의 중요 부품인 촉매는 초기의 높은 성능을 조금씩 상실하게 되면서 그 성능이 차차 감소하게 되는데, 이러한 촉매 열화의 요인들 중에서는 열과 화학적인 요소에 의한 피독이 대표적이다.During the vehicle's durability, the catalyst, which is an important part inside the catalytic converter, gradually loses its initial high performance, and its performance gradually decreases. Among these factors, poisoning by heat and chemical factors is typical.
열에 의한 활성저하 현상은 1000도 가까이 혹은 그 이상의 온도에 촉매가 노출되어 발생되는 바, 이로 인해 촉매의 귀금속이 소결됨과 함께 담체인 알루미나의 표면적이 감소되어 반응가스와의 접촉 면적이 줄어들고, 결국 촉매의 성능저하로 이어지게 된다.Heat deactivation is caused by exposure of the catalyst to temperatures close to or above 1000 ° C. As a result, the precious metal of the catalyst is sintered and the surface area of the alumina, which is the carrier, is reduced, thereby reducing the contact area with the reaction gas. This leads to a decrease in performance.
또 하나의 중요 활성저하 요인으로서는 화학적 열화가 있는데, 이는 인, 칼슘, 아연, 납과 같은 촉매독 성분들이 촉매의 담체나 귀금속에 강하게 결합함으로써, 반응가스가 촉매와 결합-분해되지 못하여 그대로 배출되어 버리는 현상을 유발시킨다.Another important deactivation factor is chemical deterioration. The catalyst poison components such as phosphorus, calcium, zinc, and lead are strongly bound to the catalyst carrier or the noble metal, and thus the reaction gas is not bound to the catalyst and is decomposed. Cause throwing away.
상기의 촉매독 성분들은 대체적으로 촉매와 한번 결합하면 떨어지지 않으므로 비가역적인 활성저하 요인이라 할 수 있다.The catalyst poison components are generally irreversible deactivation factors because they do not fall off once combined with the catalyst.
차량 개발에 있어서, 각국의 배출가스 규제를 만족해야 차량 판매가 가능하므로, 자동차 각 사들은 5년 8만KM 혹은 10년 16만KM와 같은 장기간의 배출가스 성능 내구를 파악하여 차량의 전사용 시간에 걸쳐 성능을 발휘할 수 있는 촉매 컨버터 개발에 집중하고 있다.In developing a vehicle, it is necessary to meet the emission regulations of each country so that the vehicle can be sold. Therefore, each automobile company understands the long-term emission performance durability such as 5 years 80,000 KM or 10 years 160,000 KM. The company is focusing on developing catalytic converters that can perform over time.
이러한 내구 개발을 위해서 촉매 컨버터를 열 및 피독환경에서 인위적으로 급속 열화를 시켜서 단시일 내에 장기 내구 특성을 관찰할 수 있는 에이징 모드를 자동차 각 사에서 적용중에 있으며, 인위적으로 에이징된 촉매들은 해당 주행거리에서 열화된 실차품과 동일한 열화도를 보이지는 않으나, 열화 과정의 상사성 등에서 많은 성과를 나타내고 있다.For this endurance development, an aging mode is being applied to each automobile company to observe the long-term durability characteristics in a short time by artificially rapidly deteriorating the catalytic converter in a heat and poisonous environment. Although it does not show the same degree of deterioration as a deteriorated real vehicle, it shows many achievements in similarity of deterioration process.
즉, 열과 비가역적 피독 열화에 대해서 엔진의 공연비 및 피독물질의 주입등으로 실차 열화에 매우 유사한 열화 모드를 개발하여 사용중에 있다.That is, deterioration mode that is very similar to actual vehicle deterioration has been developed and used in terms of air and irreversible poisoning deterioration due to the air-fuel ratio of engine and injection of poisonous substances.
그러나, 가역적인 화학 열화, 즉 황피독에 대해서는 내구기준이 정확히 마련되어 있지 않고, 황에 대한 영향을 관찰할 수 잇는 시험 방법이 없는 상태이다.However, for the reversible chemical deterioration, that is, poisoning of sulfur, the endurance standards are not precisely established and there is no test method to observe the effect on sulfur.
특히, 규제를 가장 선도하고 있는 북미 캘리포니아 규제 적용지역으로 차량을 수출하기 위해서 그 지역에서 사용되어야 하는 리포뮬레이티드 가솔린(reformulated gasoline)을 시험 연료로 사용하는 경우, 황에 의한 고장 여부를 사전에 전혀 감지할 수 없으며, 해당 지역에서 판매되는 리포뮬레이티드 가솔린에 함유된 황은 겨우 10 ~ 20PPM 수준이므로 황 영향을 관찰하기 어렵다.In particular, when using reformulated gasoline as a test fuel to export vehicles to the most regulated North American California-regulated area, sulfur-induced failures are identified in advance. It is not detectable at all, and the sulfur content in the reformed gasoline sold in the region is only 10-20 ppm, making it difficult to observe the sulfur effect.
따라서, 규제적으로 가장 심한 북미 캘리포니아 지역에 적용될 수 있는 촉매 컨버터를 개발하고서도, 그 사양을 황함량이 상대적으로 높은 타 지역에 적용할 경우 연료중의 황에 의해 촉매가 열화되어 규제치를 초과하는 경우가 종종 발생되고 있다.Therefore, even when developing catalytic converters that can be applied to the most severely regulated North American California region, if the specification is applied to other regions with relatively high sulfur content, the catalyst may be deteriorated by sulfur in fuel and exceed the regulation value. Is often occurring.
따라서, 차량 배출수준에 미치는 연료중의 황의 영향을 파악할 수 있는 간편하고 새로운 시험 방법이 필요한 상황에 처해 있다.Therefore, there is a need for a simple and new test method for understanding the effect of sulfur in fuel on vehicle emission levels.
본 발명은 상기와 같은 점을 감안하여 안출한 것으로서, 연료중의 황함량 조정을 티오페놀을 사용하여, 기존에 이황화탄소를 사용함에 따른 황 농도의 오차 발생을 줄여줌으로써, 황 농도 조절 작업의 용이성을 제공할 수 있고, 그에 따라 황피독 시험시 연료 중의 황함량 증가에 따른 HC, CO, NOx 등의 유해 배출가스의 배출량을 정확하게 측정 시험할 수 있는 연료중의 황성분에 의한 피독 여부 시험 방법을 제공하는데 그 목적이 있다.The present invention has been made in view of the above, by adjusting the sulfur content in the fuel using thiophenol, by reducing the occurrence of the error of sulfur concentration by using carbon disulfide, ease of sulfur concentration control operation It is possible to provide a test method for poisoning by sulfur components in fuel, which can accurately measure and test emissions of harmful emissions such as HC, CO, and NOx according to an increase in sulfur content in fuel during sulfur poisoning test. Its purpose is to.
상기한 목적을 달성하기 위한 본 발명은 가솔린 20L 당 시험할 황함량(농도)을 10ppm∼900ppm으로 설정하는 단계와; 기준연료인 인돌렌 시험유의 황함량을 확인하는 단계와; 시험을 위한 가솔린 연료에 티오페놀(C6H6S)을 투여하되, 가솔린 연료 20L 당 원하는 황농도에 맞게 1.0∼80.0cc로 첨가하는 단계와; 상기 티오페놀에 의하여 황농도가 조절된 가솔린 연료를 차량에 급유한 다음, 주행거리 10∼15Km, 주행속도 80Km로 주행을 하여, 배기가스 정화 촉매에 대한 시험 전처리를 실시 단계와; 고속주행(>60Km)중 급제동하여, 연료 컷-오프(fuel cut-off)과 함께 촉매내에 린 펄스가 주입되어, 촉매에 흡착된 과도한 황 화합물이 제거되는 린 펄스에 의한 과도한 황 피독 제거 단계와; 차량을 상온에서 12시간 이상 방치한 다음, 미국의 시가지주행모드인 FTP-75 혹은 유럽 모드 기준(New European Driving Cycle;NEDC)에 따라 차량의 배기가스 측정 시험을 실시하는 단계로 이루어지는 것을 특징으로 하는 연료중의 황성분에 의한 피독 여부 시험 방법을 제공한다.The present invention for achieving the above object comprises the steps of setting the sulfur content (concentration) to be tested per 20L gasoline to 10ppm to 900ppm; Confirming the sulfur content of the reference fuel indole test oil; Administering thiophenol (C 6 H 6 S) to the gasoline fuel for testing, adding 1.0-80.0 cc of gasoline fuel at a desired sulfur concentration per 20 liters of gasoline fuel; Lubricating the gasoline fuel whose sulfur concentration is controlled by the thiophenol to the vehicle, and then driving at a driving distance of 10 to 15 km and a traveling speed of 80 km, and performing a test pretreatment on the exhaust gas purification catalyst; A rapid braking during high speed driving (> 60 km), and a lean pulse is injected into the catalyst along with a fuel cut-off to remove excessive sulfur poisoning by a lean pulse in which excess sulfur compounds adsorbed on the catalyst are removed; ; After leaving the vehicle at room temperature for at least 12 hours, the vehicle exhaust gas measurement test is performed in accordance with the US-driving mode FTP-75 or New European Driving Cycle (NEDC). Provides a test method for poisoning by sulfur components in fuel.
바람직한 구현예로서, 상기 고속주행(>60Km)중 급제동하여, 연료 컷-오프(fuel cut-off)하는 단계는 3회 내지 8회 반복 실시되는 것을 특징으로 한다.In a preferred embodiment, the step of fast braking during the high speed driving (> 60Km), and fuel cut-off may be repeated 3 to 8 times.
기준연료인 인돌렌 시험유의 황함량을 확인하는 단계는 인돌렌 연료라고 하더라도, 제작사 등에 따라 황함량이 달라질 수 있으므로 초기의 인돌렌 연료에 황이 어느 정도 함유되어 있는지를 파악하는 단계로서, 이 단계를 거쳐서 초기 인돌렌 연료에 포함된 황함량을 파악한 후 목표로 하는 황농도를 맞추기 위해 티오페놀을 첨가할 수 있기 때문에 초기에 인돌렌 황함량을 파악해야 한다. The step of checking the sulfur content of the indole test oil, which is a standard fuel, is to determine how much sulfur is contained in the initial indole fuel, even if it is an indole fuel. After determining the sulfur content contained in the initial indole fuel, thiophenol may be added to meet the target sulfur concentration.
이하, 본 발명의 바람직한 실시예를 첨부도면을 참조로 상세하게 설명하기로 한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
첨부한 도 1은 본 발명에 따른 연료중의 황성분에 의한 피독 여부 시험 방법을 설명하는 공정 흐름도이다.1 is a flowchart illustrating a method for testing poisoning by sulfur components in a fuel according to the present invention.
본 발명은 황피독 시험시 연료 중의 황함량 증가에 따른 HC, CO, NOx 등의 유해 배출가스의 배출량을 정확하게 측정 시험할 수 있는 방법을 제공하고자, 황농도 조절 첨가제의 종류를 기존의 이황화탄소(CS2)를 배제하고 티오페놀(C6H6S)을 사용한 점에 주안점이 있다.The present invention to provide a method that can accurately measure the emissions of harmful emissions such as HC, CO, NOx according to the increase in sulfur content in fuel during sulfur poisoning test, the type of sulfur concentration control additive is a conventional carbon disulfide ( The main point is the use of thiophenol (C 6 H 6 S) without the CS 2 ).
기존에 사용되고 있는 황화합물은 이황화탄소이나, 이는 낮은 비점 및 화합 물 무게당 황의 질량비가 높으므로 연료 중에 작은 양만을 넣을 경우, 오차 발생이 심하게 나타나는 단점이 있다.The sulfur compound used in the past is carbon disulfide, but since it has a low boiling point and a high mass ratio of sulfur per compound weight, there is a disadvantage in that an error occurs severely when only a small amount is added to the fuel.
즉, 가솔린 20L에 50PPM의 황농도를 맞추기 위해서 이황화탄소 0.69CC가 필요하였으나, 이 역시 투입과정에 이황화탄소의 높은 휘발성으로 인해 투입 과정에서 휘발되어 최종 혼합물의 황농도가 실제적으로는 낮아진다는 단점이 있었다.In other words, 0.69CC of carbon disulfide was required to adjust the sulfur concentration of 50PPM to 20L of gasoline, but this also has the disadvantage of volatilizing in the input process due to the high volatility of carbon disulfide in the input process, so that the sulfur concentration of the final mixture is actually lowered. there was.
이러한 점을 보완하기 위해서 본 발명은 티오페놀이라는 물질을 사용하는 점에 그 특징이 있다In order to compensate for this, the present invention is characterized in that it uses a substance called thiophenol.
아래의 표 1은 이황화 탄소와 티오페놀의 물성치를 비교하여 나타낸 것이다.Table 1 below shows the physical properties of carbon disulfide and thiophenol.
통상, 티오페놀은 비점이 169℃ 정도로서, 46℃인 이황화탄소에 비해서 상온에서 조작하기 편하며, 비중이 낮고, 티오페놀 무게당 황 함량이 이황화탄소 대비 35%에 불과하므로, 결과적으로 동일한 연료중의 황농도를 구현하기 위해서 넣어주는 부피는 약 4배 정도 증가하게 된다.In general, thiophenol has a boiling point of about 169 ° C., which is easier to operate at room temperature than carbon disulfide having 46 ° C., low specific gravity, and only 35% of sulfur content per carbon weight of thiophenol. The volume added to implement the sulfur concentration of about 4 times will be increased.
따라서, 티오페놀은 연료중의 황농도를 구현하기 위해 넣어주는 부피가 4배 증가하므로, 측정오차를 감소시킬 수 있고, 또한 높은 비점으로 인해 상온에서 조작 동안에 불필요하게 증발되어 발생되는 오차를 최대한 줄일 수 있게 해준다.Therefore, thiophenol increases the volume added to realize the sulfur concentration in the fuel by four times, thereby reducing the measurement error and, due to the high boiling point, minimizes the error caused by unnecessary evaporation during operation at room temperature. To make it possible.
이러한 특징으로 갖는 티오페놀로 황농도를 조절하여 이루어지는 연료중의 황성분에 의한 피독 여부 시험 방법을 순서대로 살펴보면 다음과 같다.Looking at the test method for poisoning by the sulfur component in the fuel made by adjusting the sulfur concentration with thiophenol having such characteristics as follows.
먼저, 가솔린 20L 당 시험할 황함량(농도)을 10ppm∼900ppm으로 설정하고, 기준연료인 인돌렌 시험유의 황함량을 확인한다.First, the sulfur content (concentration) to test per 20 liters of gasoline is set to 10 ppm-900 ppm, and the sulfur content of the indole test oil which is a reference fuel is confirmed.
이때, 시험을 위한 가솔린 연료에 티오페놀(C6H6S)을 투여하되, 가솔린 연료 20L 당 원하는 황농도에 맞게 1.0∼80.0cc로 첨가한다.At this time, thiophenol (C 6 H 6 S) is administered to the gasoline fuel for the test, but is added at 1.0 to 80.0cc according to the desired sulfur concentration per 20L gasoline fuel.
아래의 표 2 및 표 3은 원하는 황화합물의 농도를 만들기 위해 투입되는 이황화탄소와 티오페놀양을 비교하여 나타낸 것이다.Table 2 and Table 3 below shows a comparison of the amount of carbon disulfide and thiophenol input to make the concentration of the desired sulfur compound.
다음으로, 상기 티오페놀에 의하여 황농도가 조절된 가솔린 연료를 차량에 급유한 다음, 주행거리 10∼15Km, 주행속도 80Km로 주행을 하여, 배기가스 정화 촉매에 대한 시험 전처리를 실시한다.Next, the gasoline fuel whose sulfur concentration is controlled by the thiophenol is refueled to the vehicle, and then the vehicle is run at a driving distance of 10 to 15 km and a traveling speed of 80 km, and a test pretreatment for the exhaust gas purification catalyst is performed.
이어서, 고속주행(>60Km)중 급제동하여, 연료 컷-오프(fuel cut-off: 연료분사가 중지되는 구간)과 함께 촉매내에 린 펄스가 주입되어, 촉매에 흡착된 과도한 황 화합물이 제거되는 린 펄스에 의한 과도한 황 피독 제거 단계가 진행된다.Then, during the high speed driving (> 60km), the brake is rapidly braked, and a lean pulse is injected into the catalyst along with the fuel cut-off, thereby removing the excess sulfur compound adsorbed on the catalyst. Excessive sulfur poisoning elimination by pulses proceeds.
이때, 상기 고속주행(>60Km)중 급제동하여, 연료 컷-오프(fuel cut-off)하는 단계는 3회 내지 8회 반복 실시된다.At this time, the rapid braking of the high speed driving (> 60km), the fuel cut-off (fuel cut-off) step is repeated three to eight times.
연이어, 차량을 상온에서 12시간 이상 방치한 다음, 미국의 시가지주행모드인 FTP-75 혹은 유럽 모드 기준에 따라 차량의 배기가스 측정 시험을 실시하게 된다.Subsequently, the vehicle is allowed to stand at room temperature for more than 12 hours, and then the vehicle's exhaust gas measurement test is performed according to the standard mode of the US-driving mode FTP-75 or European mode.
본 발명에 따른 공정 중에서 주목할 점은 과도한 황 피독현상을 막기 위하여, 전처리 과정 중에 연료 컷-오프에 의한 촉매에서의 과다 황성분 제거 과정이라고 할 수 있으며, 이는 연료 중의 황성분이 서로 다르므로 시험에 들어가기 전에 전처리 과정에서 황성분의 축적량도 다르게 되므로, 과다 황성분을 제거하여 시험결과의 왜곡을 막기 위함이다.It should be noted that in the process according to the present invention, in order to prevent excessive sulfur poisoning, the removal of excess sulfur component in the catalyst by fuel cut-off during the pretreatment process, which is different from the sulfur content in the fuel before entering the test The amount of sulfur component is also changed during the pretreatment process, so that the excess sulfur component is removed to prevent distortion of the test results.
이와 같이, 본 발명에 따른 연료중의 황성분에 의한 피독 여부 시험 방법에 의거 황함량이 조절된 연료를 이용하여 배기시험을 실시하였는 바, 첨부한 도 2a,2b,2c의 그래프에서 보는 바와 같이, 연료 중의 황함량 증가에 따라, HC, CO, NOx 등의 유해 배출가스의 배출량이 증가됨을 잘 확인할 수 있었다.As described above, the exhaust test was performed using a fuel whose sulfur content was adjusted according to the poisoning test method of sulfur component in the fuel according to the present invention. As shown in the graphs of FIGS. 2A, 2B, and 2C, As the sulfur content in the fuel increased, it was confirmed that the emissions of harmful emissions such as HC, CO, NOx increased.
이상에서 본 바와 같이, 본 발명에 따른 연료중의 황성분에 의한 피독 여부 시험 방법에 의하면, 연료중의 황함량 조정을 티오페놀을 사용하여, 기존에 이황화탄소를 사용함에 따른 황 농도의 오차 발생을 줄여줌으로써, 황 농도 조절 작업의 용이성을 제공할 수 있고, 그에 따라 황피독 시험시 연료 중의 황함량 증가에 따른 HC, CO, NOx 등의 유해 배출가스의 배출량을 정확하게 측정 시험할 수 있는 장점이 있다.As described above, according to the test method for poisoning by the sulfur component in the fuel according to the present invention, the sulfur content in the fuel is adjusted by using thiophenol, and the occurrence of an error in the sulfur concentration by using carbon disulfide is known. By reducing, it is possible to provide the ease of the sulfur concentration control operation, and thus there is an advantage that can accurately measure and test the emissions of harmful emissions such as HC, CO, NOx according to the increase of sulfur content in the fuel during sulfur poisoning test .
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020050112150A KR100748740B1 (en) | 2005-11-23 | 2005-11-23 | Method for testing poisoning element catalytic accoding tto the sulfur content of fuel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020050112150A KR100748740B1 (en) | 2005-11-23 | 2005-11-23 | Method for testing poisoning element catalytic accoding tto the sulfur content of fuel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20070054301A KR20070054301A (en) | 2007-05-29 |
| KR100748740B1 true KR100748740B1 (en) | 2007-08-13 |
Family
ID=38276127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020050112150A KR100748740B1 (en) | 2005-11-23 | 2005-11-23 | Method for testing poisoning element catalytic accoding tto the sulfur content of fuel |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR100748740B1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7144388B2 (en) * | 2019-11-21 | 2022-09-29 | トヨタ自動車株式会社 | Method for estimating the concentration of sulfur components in gasoline |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR970007346A (en) * | 1995-07-31 | 1997-02-21 | 전성원 | Automatic Hydrogen Sulfide Analysis and Method for Automobile Exhaust |
| JP2001074727A (en) | 1999-09-02 | 2001-03-23 | Nissan Motor Co Ltd | Device for estimating concentration of sulfur in fuel |
| US20020139714A1 (en) | 2000-12-28 | 2002-10-03 | Feimer Joseph L. | Method for reducing the level of elemental sulfur and total sulfur in hydrocarbon streams |
| US6803236B2 (en) | 2001-08-10 | 2004-10-12 | Delphi Technologies, Inc. | Diagnostic system for monitoring catalyst performance |
-
2005
- 2005-11-23 KR KR1020050112150A patent/KR100748740B1/en not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR970007346A (en) * | 1995-07-31 | 1997-02-21 | 전성원 | Automatic Hydrogen Sulfide Analysis and Method for Automobile Exhaust |
| JP2001074727A (en) | 1999-09-02 | 2001-03-23 | Nissan Motor Co Ltd | Device for estimating concentration of sulfur in fuel |
| US20020139714A1 (en) | 2000-12-28 | 2002-10-03 | Feimer Joseph L. | Method for reducing the level of elemental sulfur and total sulfur in hydrocarbon streams |
| US6803236B2 (en) | 2001-08-10 | 2004-10-12 | Delphi Technologies, Inc. | Diagnostic system for monitoring catalyst performance |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20070054301A (en) | 2007-05-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2012111978A (en) | EXHAUST GAS NEUTRALIZATION SYSTEM CONTAINING A CATALYTIC ACTIVE FILTER WITH A FLOW WALL, HAVING AN ACCUMULATION FUNCTION AND LOCATED BEFORE A CATALYTIC NEUTRALIZER WITH TOROZA | |
| BRPI0606584A2 (en) | reduced combustion emissions using multi-component metal combustion catalyst and lightly catalyzed diesel oxidation catalyst | |
| DE102017200145A1 (en) | Method for monitoring an exhaust aftertreatment system, in particular a NOx storage catalyst and control device for an exhaust aftertreatment system and vehicle | |
| Tan et al. | A phenomenological model for particle number and size distributions of a diesel engine with a diesel oxidation catalyst | |
| KR100748740B1 (en) | Method for testing poisoning element catalytic accoding tto the sulfur content of fuel | |
| US6978601B1 (en) | Regenerating sulphur poisoned diesel catalysts | |
| Campbell et al. | Transient gaseous and particulate emissions measurements on a diesel passenger car including a DPF regeneration event | |
| Bradow et al. | Sulfate emissions from catalyst cars—a review | |
| Ikeda et al. | Development of NOx storage-reduction Three-way catalyst for D-4 Engines | |
| Williams et al. | Effect of Accelerated Aging Rate on the Capture of Fuel-Borne Metal Impurities by Emissions Control Devices | |
| Allansson et al. | The development and in-field performance of highly durable particulate control systems | |
| Irwin et al. | Modelling the variation in precious metal dispersion in a three way catalytic converter after aging | |
| Jacques et al. | Robust SCR Design Against Environmental Impacts | |
| Clausen III et al. | A Mössbauer study of automotive emission control catalysts | |
| Parks et al. | Durability of NOx Absorbers: Effects of Repetitive Sulfur Loading and Desulfation | |
| Adamiak et al. | An analysis of emissions at low ambient temperature from diesel passenger cars using the WLTP test procedure | |
| Kumar et al. | Influence of phosphorous poisoning on TWC catalysts | |
| Hirano et al. | Analysis of sulfur-related white smoke emissions from DPF System | |
| Irwin et al. | Further Analysis of the Effect of Oxygen Concentration on the Thermal Aging of Automotive Catalysts | |
| Molinier | NOx adsorber desulfurization under conditions compatible with diesel applications | |
| Beck | Impact of sulfur on three-way automotive catalyst performance and catalyst diagnostics | |
| WO2001094013A1 (en) | Rejuvenation and/or cleaning of catalysts | |
| Collier et al. | Development of a rapid sulfation technique and fundamental investigations into desulfation process | |
| CN115095415B (en) | Determination of NO in LNT x Content method, device, electronic equipment and medium | |
| KR20130060029A (en) | Sulfur resistance denox catalyst |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E701 | Decision to grant or registration of patent right | ||
| GRNT | Written decision to grant | ||
| FPAY | Annual fee payment |
Payment date: 20120731 Year of fee payment: 6 |
|
| FPAY | Annual fee payment |
Payment date: 20130731 Year of fee payment: 7 |
|
| FPAY | Annual fee payment |
Payment date: 20150731 Year of fee payment: 9 |
|
| FPAY | Annual fee payment |
Payment date: 20160729 Year of fee payment: 10 |
|
| LAPS | Lapse due to unpaid annual fee |