• Title/Summary/Keyword: petrochemical

Search Result 707, Processing Time 0.019 seconds

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

  • Kim, Kug-Rae;Hwang, Sae-Yeon;Kim, Bong-Hoon
    • Fire Science and Engineering
    • /
    • v.26 no.1
    • /
    • pp.38-42
    • /
    • 2012
  • Major industrial accidents such as fires, explosions and toxic releases have occurred in Ulsan, Yeosu petrochemical complex area every year. In this study, we analyzed the causes of the previous major accidents in order to provide reasonable measures for safety regulations and process safety management. Consequently, It is necessary to make constant revisions of safety regulations and to improve process safety management in other to prevent major industrial accidents in the petrochemical complex areas.

Polypropylene Reactive Nanocomposites with Functional Nanoclays

  • Phandee, Atinuch;Magaraphan, Rathanawan;Nithitanakul, Manit;Manuspiya, Hathaikarn
    • Proceedings of the Polymer Society of Korea Conference
    • /
    • 2006.10a
    • /
    • pp.280-280
    • /
    • 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.

  • PDF

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

  • Park, Bok-Jae
    • International Commerce and Information Review
    • /
    • v.10 no.3
    • /
    • pp.3-21
    • /
    • 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.

  • PDF

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.
    • Journal of the Korean Chemical Society
    • /
    • v.55 no.6
    • /
    • pp.1012-1017
    • /
    • 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.

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

  • 윤동현;강미진;이영순;김창은
    • Journal of the Korean Society of Safety
    • /
    • v.18 no.3
    • /
    • pp.75-80
    • /
    • 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.

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

  • Chung, Eun-Kyo;Yu, Gye-Muk;Shin, Jung-Ah;Kwon, Ji-Woon;Park, Hyun-Hee;Chung, Kwang-Jae;Lee, Jong-Han;Lee, In-Seop;Kang, Seong-Kyu;Ryu, Hyang-Woo;Kim, Young-Sun;Lee, Byung-Kyu;Jang, Jae-Kil;Kim, Won;Kim, Jung-Man
    • Journal of Korean Society of Occupational and Environmental Hygiene
    • /
    • v.20 no.3
    • /
    • pp.147-155
    • /
    • 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.

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

  • Ko, Nayoung;Kim, Seonghun
    • Journal of the Economic Geographical Society of Korea
    • /
    • v.23 no.3
    • /
    • pp.349-368
    • /
    • 2020
  • The aim of this study is to examine the relationship between the characteristics of Korean petroleum and petrochemical industries and the change of participation in global value chains. Since 1960s, Korean petroleum and petrochemical industries have been developed under government's industrial policies. In 1980s Korean petroleum and petrochemical industries served as a key export-oriented industry) of Korea's national economic development. Based on the expansion of large-scale production facilities led by the private sectors from the end of 1980s, Korea became as a major country in the global petroleum and petrochemical industries. Under Korean domestic scale, it shows considerable spatial concentration, in Ulsan Metropolitan City, Yeosu City and Seosan City. However, the degree of spatial concentration is differentiated along the each sectors within the petroleum and petrochemical industry. To improve regional industry competitiveness, each region has adopted different strategies and shifted to structural upgrading and producting high value-added products. Changes in the structure within petroleum and the petrochemical industries at the national level caused a change in the structure of Korea's participation in GVC, but the domestic value-added is lower than that of its major competitors.