Vacuum Residual Oil 속 Nickel 과 Vanadium 제거에 관한 연구

정원제,이후철,여가경,고진영,박승규 한국공업화학회 2015 한국공업화학회 연구논문 초록집 Vol.2015 No.1

최근 고유가 시대를맞이하여 초고유황 초중질유 및 오일샌드 등 원유 처리 필요성이 야기되면서 중질유 고부가화 기술이 부각되고 있다. 그 중 Vacuum Residual은 원유 분리 정제 공정에서 감압증류로부터 얻어지는 가장 무거운 성분이며 황 및 질소등이 유기형태로 결합된 금속 성분을 많이 함유하고 있다. 이중 중금속 성분은 감압잔사유의 수첨분해공정시 촉매가스와 코크스의 형성의 원인이 되고 촉매의 활성을 낮추기 때문에 중금속을 제거하는 선행기술이 개발되어야 한다. 본 연구에서는 VR속 중금속제거를 위하여 N-Hexane을 사용하여 1차적으로 Soluble한 부분과 Insoluble한 부분으로 분류한 후 ICP 분석을 통하여 Soluble한 부분에서는 중금속이 제거되었고 Insoluble한 부분에서 농축된 것을 확인하였다. Insoluble한 부분에서 중금속을 메조포러스 담채 촉매를 사용하여 흡착제거하고자 한다.

Vacuum Residual Oil속 중금속을 제거기술 개발을 위한 Nickel 제거에 관한 연구

정원제,이후철,박동호,박승규 한국공업화학회 2014 한국공업화학회 연구논문 초록집 Vol.2014 No.1

최근 고유가 시대를 맞아 초고유황 초중질유 및 오일샌드 등 원유 처리 필요성이 대두되면서 중질유 고부가화 기술이 부각되고 있다. vacuum residual Oil (VR, 감압잔사유)는 원유 분리 정제 공정에서 감압즈류로부터 얻어지는 가장 무거운 성분이며 황 및 질소가 유기형태로 결합된 금속 성분을 많이 포함하고 있는데 이중 중금속은 감압잔사유의 수첨분해공정시 촉매 가스와의 반응으로 코크스 형성의 원인이 되어 촉매의 활성을 낮춘다. 본 연구는 VR속 중금속을 제거하기 위하여 MCM-48을 합성하고 Nickel(II)와 같은 중금속의 MCM-48에 의한 제거를 UV-visible spectroscopy로 확인하였다.

A review of recent advances in catalytic hydrocracking of heavy residues

Ramakanta Sahu,이철위,송병진,임지선,전영표 한국공업화학회 2015 Journal of Industrial and Engineering Chemistry Vol.27 No.-

Non-conventional feeds such as vacuum residue (VR) and heavy oils have shown an alternate source forthe production of high value transportation fuels, as it is abundantly available. These feeds are of lowquality due to presence of impurities like CCR, asphaltenes, sulfur, nitrogen and heavy metals. Severalprocess technologies have been developed to upgrade these feeds through fixed-bed, moving-bed,ebullated-bed, slurry-phase reactor or a combination. Hydrocracking in slurry-phase type reactor is aprominent technology to convert low value feeds into high value transportation fuels and petrochemicalproducts. Varieties of homogeneous and heterogeneous catalysts comparison are reviewed forhydrocracking of VR and heavy oils. Recent studies on hydrocracking reaction mechanisms arerepresented in this report. Choice of process technology is implemented by considering the feedproperties, product demand and economic benefit as well as environmental concerns. This reviewaddresses the most recent hydrocracking technologies, catalyst development and important issuesrelated to conversion of non-conventional feeds

A review of recent advances in catalytic hydrocracking of heavy residues

Sahu, R.,Song, B.J.,Im, J.S.,Jeon, Y.P.,Lee, C.W. Korean Society of Industrial and Engineering Chemi 2015 Journal of industrial and engineering chemistry Vol.27 No.-

Non-conventional feeds such as vacuum residue (VR) and heavy oils have shown an alternate source for the production of high value transportation fuels, as it is abundantly available. These feeds are of low quality due to presence of impurities like CCR, asphaltenes, sulfur, nitrogen and heavy metals. Several process technologies have been developed to upgrade these feeds through fixed-bed, moving-bed, ebullated-bed, slurry-phase reactor or a combination. Hydrocracking in slurry-phase type reactor is a prominent technology to convert low value feeds into high value transportation fuels and petrochemical products. Varieties of homogeneous and heterogeneous catalysts comparison are reviewed for hydrocracking of VR and heavy oils. Recent studies on hydrocracking reaction mechanisms are represented in this report. Choice of process technology is implemented by considering the feed properties, product demand and economic benefit as well as environmental concerns. This review addresses the most recent hydrocracking technologies, catalyst development and important issues related to conversion of non-conventional feeds.

석유계 잔사유 기반 음극재 제조 및 그 전기화학적 특성

김대섭,임채훈,김석진,이영석,Kim, Daesup,Lim, Chaehun,Kim, Seokjin,Lee, Young-Seak 한국공업화학회 2022 공업화학 Vol.33 No.5

본 연구에서는 석유 정제 부산물인 석유계 잔사유를 이용하여 리튬이차전지용 음극재를 제조하였다. 석유계 잔사유 중 열분해 연료유(pyrolysis fuel oil, PFO), 유동접촉분해 데칸트 오일(fluidized catalyst cracking-decant oil, FCC-DO), 감압잔사유(vacuum residue, VR)를 탄소 전구체로 사용하였다. MALDI-TOF, 원소분석(EA)을 통하여 석유계 잔사유의 물리화학적 특징을 확인하였고, 잔사유로부터 제조된 음극재는 XRD, Raman 등의 분석을 통해 그 구조적 특징을 평가하였다. VR은 PFO 및 FCC-DO에 비하여 광범위한 분자량 분포와 많은 양의 불순물을 함유하는 것을 확인할 수 있었고, PFO와 FCC-DO는 거의 유사한 물리화학적 특징을 나타내었다. XRD 분석결과로부터 탄화된 PFO와 FCC-DO는 유사한 d₀₀₂값을 나타내었다. 그러나 Lc 및 La값에서는 FCC-DO가 PFO보다 더 발달된 층상구조를 갖는 것으로 확인되었다. 또한, 전기화학적 특성 평가에서는 FCC-DO가 가장 우수한 사이클 특성을 나타내었다. 이러한 석유계 잔사유의 물리화학적, 전기화학적 결과로 미루어 보아 FCC-DO가 PFO와 VR보다 더 우수한 리튬이차전지용 탄소 전구체인 것으로 사료된다.

Meliorate optical textures and mesophase contents by promising approach of deasphalting of petroleum residues

Subhash Kumar,Manoj Srivastava 한국공업화학회 2017 Journal of Industrial and Engineering Chemistry Vol.48 No.-

The aim of this work is to study melioration in mesophase formation behaviour by deasphalting ofpetroleum residues. Pitches prepared from VRs have undesirable high values of physico-chemicalproperties as compared to their corresponding DAOs pitches. This is due to presence of high molecularweight asphaltenes molecules in VRs. The optical microscopic images of VR-390-1 and VR-390-2 pitchesshowed that they have small sized, distorted and agglomerated types of mesophase having mesophasecontents (MC) 25 vol% and 22 vol% respectively but deasphalting of these VRs improve the growth andoptical texture of mesophase in DAO-390-1 (29 vol%) and DAO-390-2 (35 vol%).

A comparison of thermal decomposition behavior of vacuum residual oils over metal oxide catalysts produced by combustion and impregnation

추고연,조동우,박종호,안민회,김권일 한국공업화학회 2014 한국공업화학회 연구논문 초록집 Vol.2014 No.1

Many catalysts will work, including; nickel, palladium, platinum, cobalt, and iron in hydrotreating which involves temperatures of about 325°C and pressures of about 50 atm. Hydrocracking that breaks longer molecules into smaller ones, involves temperatures over 350°C and pressures up to 200 atm. In both cases, very long residence times (about an hour) are required because of the slow nature of the reactions. In this study, feasibility of catalytic thermal cracking was investigated and compared through thermal decomposition behavior of vacuum residual oils over iron and nickel oxide catalysts which prepared on silicate as a support using glycine-nitrate combustion method and wet impregnation method.

Upgrading of vacuum residue in batch type reactor using Ni-Mo supported on goethite catalyst

Sahu, R.,Song, B.J.,Jeon, Y.P.,Lee, C.W. Korean Society of Industrial and Engineering Chemi 2016 Journal of industrial and engineering chemistry Vol.35 No.-

<P>It is imperative to develop an efficient catalyst to convert vacuum residue (VR) into low boiling point liquid products via an environmentally benign pathway. Ni-Mo bimetal was impregnated on goethite supports and well characterized using various analytical techniques. VR hydrocracking catalytic activities were investigated in a batch reactor. The 1%Ni-4.5%Mo/Goethite catalyst showed a high yield of low boiling point liquid products, 69.8%, with 80% VR conversion at 420 degrees C in the presence of 70 bar initial hydrogen pressure in 3 h. In these liquid products, 8.6% of naphtha, 51.4% of middle distillate, 9.8% of vacuum gas oil (VGO) with 28.1% of saturates, 62.5% of aromatics, 8.4% of resins and >1% of asphaltenes were confirmed by TGA and SARA analysis, respectively. The experimental findings indicated that the formation of low boiling point liquid products depends on physical parameters and chemical composition of the catalyst. This paper describes the synthesis of the supported catalysts, influences of the active metal composition, metal/support interaction, and process parameters for hydrocracking of VR into high value, low boiling point liquid products. (C) 2015 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.</P>

Upgrading of vacuum residue in batch type reactor using Ni–Mo supported on goethite catalyst

Ramakanta Sahu,송병진,전영표,이철위 한국공업화학회 2016 Journal of Industrial and Engineering Chemistry Vol.35 No.-

It is imperative to develop an efficient catalyst to convert vacuum residue (VR) into low boiling pointliquid products via an environmentally benign pathway. Ni–Mo bimetal was impregnated on goethitesupports and well characterized using various analytical techniques. VR hydrocracking catalyticactivities were investigated in a batch reactor. The 1%Ni–4.5%Mo/Goethite catalyst showed a high yieldof low boiling point liquid products, 69.8%, with 80% VR conversion at 420 8C in the presence of 70 barinitial hydrogen pressure in 3 h. In these liquid products, 8.6% of naphtha, 51.4% of middle distillate, 9.8%of vacuum gas oil (VGO) with 28.1% of saturates, 62.5% of aromatics, 8.4% of resins and >1% ofasphaltenes were confirmed by TGA and SARA analysis, respectively. The experimental findingsindicated that the formation of low boiling point liquid products depends on physical parameters andchemical composition of the catalyst. This paper describes the synthesis of the supported catalysts,influences of the active metal composition, metal/support interaction, and process parameters forhydrocracking of VR into high value, low boiling point liquid products.

Catalytic upgrading of Vacuum residue using nano-sized tungsten carbide catalyst

김찬훈,허영걸,정광식,이관영 한국공업화학회 2016 한국공업화학회 연구논문 초록집 Vol.2016 No.1

In hydrotreating process of extra-heavy oil, coke induces deactivation of catalysts and blocks pores of supports so it decreases catalytic activity. The provision of protons by hydrogenation process could suppress formation of coke. Levy and Boudart reported tungsten carbide, composed of tungsten and carbon atoms, could provide similar catalytic activity with platinum. But unlike platinum, tungsten carbide has sulfur-resistance when it is exposed to sulfur at high temperature. In recent study, small cluster of tungsten carbide has outstanding performance in hydrogen dissociative adsorption even more than platinum. In this study, nano-sized tungsten carbide catalyst was synthesized via sol-gel method and analysed via XRD and TEM. Also, nano-sized tungsten carbide catalysts were applied in vacuum residue reaction.