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(Feasibility Study as Obtimazation of Physical-Chemical Processes for Hydrocarbon Removal for Gas Industry Waste Water (an Ethylene Glycol Case Study

Jalili, Behnaz | 2014

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 46378 (06)
  4. University: Sharif University of Technology
  5. Department: Chemical and Petroleum Engineering
  6. Advisor(s): Borghei, Mahdi
  7. Abstract:
  8. In this project, the feasibility of hydrocarbon waste water treatment with low concentration by physical- chemical treatment methods will be discussed. The purpose of this thesis is to investigate the feasibility of reusing the water outlet of the oil and gas refineries, in the region of ASALUYEH where there is an urgent need for water. By using activated carbon and wooden absorbent (absorption method) efficiency of this method was determined. Both coagulation and flocculation methods were investigated. To design and optimize various operating conditions on the adsorption process the RSM method was used. Temperature, residence time, feed concentration, amount of adsorbent, and adsorbent are effective parameters of process . The CCD method in five levels of α, + 1, 0, -1, - α combined with RSM method for experimental design and optimization process is used. Activated carbon and wooden absorbent in the 20-10 and 30-20 mesh were examined separately. R2coefficient greater than 0.9 for all four equations shows that the experimental data are well matched by the model. adsorption isotherms were analyzed and suitable models were developed. For coagulation and flocculation tests Jar test apparatus was used. coagulants used are as follows: lime (Ca (OH) 2), alum (Al2 (SO4) 3), Chloroferric (FeCl3), Sulphate of Iron II (FeSO4). Also two cationic and anionic coagulant aid was used. Coagulants were used in combination. The best performance for the removal of matter was for the combined coagulants lime and Chloroferric with the anionic coagulant aid
  9. Keywords:
  10. Absorption ; Activated Carbon ; Ethylen Glycol ; Flocculant ; Response Surface Methodology ; Wooden Absorbent

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