• 제목/요약/키워드: petrochemical

검색결과 707건 처리시간 0.024초

국가산업단지의 석유화학 안전관리 방안에 관한 연구 (A Study on the Safety Management of the Petrochemical Complex Area)

  • 김국래;황세연;김봉훈
    • 한국화재소방학회논문지
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    • 제26권1호
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    • pp.38-42
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    • 2012
  • 울산, 여수 등 대단위 석유화학공장이 가동 중인 국가산업단지에서 화재 폭발 및 누출 등 중대산업사고가 발생되는 주요 원인과 안전관리 실태 등 문제점을 분석하여 이에 대한 제도적 측면 및 안전관리 측면에서 합리적인 대책을 제시해 보고자 한다.

Polypropylene Reactive Nanocomposites with Functional Nanoclays

  • Phandee, Atinuch;Magaraphan, Rathanawan;Nithitanakul, Manit;Manuspiya, Hathaikarn
    • 한국고분자학회:학술대회논문집
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    • 한국고분자학회 2006년도 IUPAC International Symposium on Advanced Polymers for Emerging Technologies
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    • pp.280-280
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    • 2006
  • Na-bentonite (local clay mineral) and Na-montmorillonite were treated with quaternary alkylammonium cations. The effect of the molecular structure and functional groups of the surfactants on the organoclays was investigated by X-ray diffraction (XRD). For the preparation of nanocomposites, organoclays were melt-blended with polypropylene in a twin screw extruder and $Surlyn^{(R)$. ionomer was used as a reactive compatibilizer. The clay dispersions in the composites were investigated by X-ray diffraction (XRD). XRD spectra showed no peak at low angle indicated that the silicate clay layer has a nearly exfoliated dispersion in the polymer matrix. Thermal and mechanical properties of nanocomposites were higher than those of PP.

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중소기업의 전자무역 시스템 도입방안과 경제적 효과 분석 - 가치사슬분석과 시뮬레이션 분석 방법론을 중심으로 - (The Introduction of Electronic Trade System to Small and Medium Sized Company & The Analysis of its Economic Effect)

  • 박복재
    • 통상정보연구
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    • 제10권3호
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    • pp.3-21
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    • 2008
  • This research investigates the strategy for application of E-Trade to SMEs to analyze the economic effect of e-trade. And the influence of the proliferation of e-business and e-trade upon the industrial business conditions, value-chain, and business activities is also analyzed. The subjects of the inquiry are the nationwide petrochemical industries in which small and medium sized companies are in mutual and intimate cooperation. The results show that the business structure of the petrochemical industries are divided into four stages, and, with the introduction of e-business, the value chain is changed by stages. And the change of value-chain explains the transition of the e-business of petrochemical industries including trade business into industrial DB and leads to a variety of the economic effect including the reduction in the trade expense, the change of the production process, and the innovation of trade structure.

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Colloidal-Chemical Parameters of Petroleum-collecting and Dispersing Surfactants Based on Vegetable Oil Acid Fractions and 2-(Chloromethyl) Oxirane

  • Asadov, Ziyafaddin H.;Ahmadova, Gulnara A.;Rahimov, Ravan A.;Mammadova, Khuraman A.
    • 대한화학회지
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    • 제55권6호
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    • pp.1012-1017
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    • 2011
  • Novel surfactants have been synthesized by catalytic chloropropoxylation reaction of carboxylic acid fractions of sunflower, olive, cottonseed, soya-bean, castor and corn oils with 2-(chloromethyl)oxirane. Colloidal-chemical parameters as well as petroleum-collecting and petroleum-dispersing capacities of the synthesized chloropropoxylate esters having heterochain of various lengths have been determined. Influence of carboxylic acid fractions composition and length of chloroxypropylene chain on petroleum-collecting and dispersing capacities has been revealed.

석유화학 공정의 가상사고 시나리오 유형분석 (Typical Pseudo-accident Scenarios in the Petrochemical Process)

  • 윤동현;강미진;이영순;김창은
    • 한국안전학회지
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    • 제18권3호
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    • pp.75-80
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    • 2003
  • This paper presents a set of typical pseudo-accident scenarios related to major equipments in petrochemical plants, which would be useful for performing such quantitative risk analysis techniques as fault tree analysis, event tree analysis, etc. These typical scenarios address what the main hazard of each equipment might be and how the accident might develop from an "initiating event". The proposed set of accident scenarios consists of total thirteen (13) scenarios specific for five (5) major equipments like reactor, distillation column, etc., and has been determined and screened out of one hundred and twenty-five (125) potential accident scenarios that were generated by performing semi-quantitative risk analysis practically for twenty-five (25) petrochemical processes, considering advices from the operation experts. It is assumed that with simple consideration or incorporation of plant-specific conditions only, the proposed accident scenarios could be easily reorganized or adapted for the relevant process with less time and labor by the safety engineers concerned in the petrochemical industries.ndustries.

석유 및 석탄화학의 대보수작업중 벤젠노출 특성 비교 (A Comparison on the Characteristics of Benzene Exposure between the Coal chemical and Petrochemical refining method during Turnaround)

  • 정은교;유계묵;신정아;권지운;박현희;정광재;;이인섭;강성규;류향우;김영선;이병규;장재길;김원;김정만
    • 한국산업보건학회지
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    • 제20권3호
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    • pp.147-155
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    • 2010
  • This study was conducted to investigate the benzene exposure levels in coal chemical and petrochemical refining industries during BTX turnaround (TA) processes where benzene was being produced. Three companies producing benzene were selected, one coal chemical and two petrochemical industries. TA processes were classified into three stages: shut down, maintenance, and start up. Data was analyzed by classifying the refining method into 2 groups (Petrochemistry, Coal chemistry) for 823 workers. Comparing the data from petrochemical industries with data from a coal chemical refining industry, while benzene concentration levels of long-term samples during TA were not statistically different (p> 0.05), those levels of short-term samples were significantly different (p< 0.001). About 4.79 % of data in petrochemical industries exceed the occupational exposure limits (OELs) of benzene, 1 ppm. In a coal refining methods, about 15.7% exceeded the benzene OELs. The benzene concentrations in maintenance and start up stage of TA for petrochemical refineries were higher than those in a coal chemical refinery (p <0.01). These findings suggest that the coal chemical refining site requires more stringent work practice controls compare to petrochemical refining sites during TA processes. Personal protective equipments including organic respirators should be used by TA workers to protect them from benzene overexposure.

한국 석유화학산업의 특성과 글로벌가치사슬 참여 구조 변화 (The Characteristics of Korean Petroleum and Petrochemical Industries and Change of Participation in Global Value Chains)

  • 고나영;김성훈
    • 한국경제지리학회지
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    • 제23권3호
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    • pp.349-368
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    • 2020
  • 본 논문의 목적은 한국 석유화학산업의 글로벌가치사슬 내 위치 변화와 한국 석유화학산업의 특성의 관계를 살펴보는 것이다. 한국 석유화학산업은 1960년대 정부의 정책적 지원 하 빠르게 성장하였고, 1980년대 수출주도형 산업으로서 한국 국가경제발전의 핵심 기간산업이 되었다. 1980년 말부터 한국 석유화학산업은 민간 주도의 대규모 생산설비 확충을 바탕으로, 한국은 글로벌 석유화학산업의 주요 국가로 자리매김하였다. 국내 석유화학산업의 공간적 분포는 울산광역시, 여수시, 서산시를 중심으로 상당한 공간적 집중이 나타난다. 그러나 석유화학산업 내 부문별로 지역별 공간적 집중 정도는 차별적으로 나타난다. 국내 석유화학산업은 지역마다 경쟁력 강화를 위해 차별적인 전략을 취함으로써, 구조고도화 및 고부가가치 제품 생산으로 전환하고자 한다. 국가 수준의 석유화학산업 내 구조 변화는 한국 석유화학산업의 GVC 참여 구조 변화를 유발하였지만, 주요 경쟁국에 비해 국내 부가가치는 낮은 수준이다.