Mercury in Petroleum Refining PDF Download
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Author: John Gilkeson
Publisher:
ISBN:
Category : Mercury
Languages : en
Pages : 7
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Book Description
Author: John Gilkeson
Publisher:
ISBN:
Category : Mercury
Languages : en
Pages : 7
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Book Description
Author: Gerard Subirachs Sanchez
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Crude oil and natural gas are predominantly composed by hydrocarbon atoms, water and a wide spectrum of elements at low levels such as arsenic, vanadium and mercury. The presence of mercury in crude oil and natural gas varies in each stage of extraction and transformation process because it distributes unequally among the vapour, condensate and aqueous phase in function of the pressure and temperature. Mercury causes a wide range of problems for refiners as for example: equipment degradation, toxic waste generation, health impacts and poisoning of catalysts. In order to remove the contaminant, there are different technologies based on adsorption, chemical oxidation, precipitation or ion exchange treatments. The use of each one depends on the concentration and the physical and chemical state of mercury in crude oil or natural gas.
Author: B. P. Hollebone
Publisher:
ISBN:
Category : Mercury
Languages : en
Pages : 62
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Author: SM. Wilhelm
Publisher:
ISBN:
Category : Fuel
Languages : en
Pages : 15
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Book Description
Sampling and analytical procedures used to determine total mercury content in crude oils were examined. Three analytical methods were compared with respect to accuracy, precision, and detection limit. The combustion method (U.S. EPA 7473 hybrid) and a commercial extraction method (non-standard) were found adequate to provide a good combination of sensitivity and accuracy, while instrumental neutron activation analysis was found to suffer from interferences from elements other than mercury (Ni, Se) that are typically found in crude oil. Aliquot removal and processing steps were found to be important to accuracy and precision of the combustion method. Potential errors caused by incomplete homogenization and loss of volatile mercury were investigated in detail. Homogenization of oils that contain suspended mercury compounds was found important to allow retrieval of representative aliquots for analysis. Ultrasonication at slightly elevated temperature yielded the more reproducible and higher magnitude results. It was discovered that volatile mercury can be lost from sample containers when they are opened to remove aliquots. Alternative sample containers and aliquot removal techniques were developed that minimized loss of volatile mercury. Speciation experiments were utilized to determine the identity of volatile species and the rates at which they are lost from containers. Both elemental mercury and dimethylmercury were identified as volatile mercury components of one freshly sampled crude oil.
Author: Evan J. Granite
Publisher: John Wiley & Sons
ISBN: 3527329498
Category : Technology & Engineering
Languages : en
Pages : 479
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Book Description
This essential handbook and ready reference offers a detailed overview of the existing and currently researched technologies available for the control of mercury in coal-derived gas streams and that are viable for meeting the strict standards set by environmental protection agencies. Written by an internationally acclaimed author team from government agencies, academia and industry, it details US, EU, Asia-Pacific and other international perspectives, regulations and guidelines.
Author: S. Mark Wilhelm
Publisher:
ISBN:
Category : Mercury
Languages : en
Pages : 69
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Book Description
Author: S. Mark Wilhelm
Publisher:
ISBN:
Category : Mercury
Languages : en
Pages : 69
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Book Description
Author: Manssor Khalifa
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
Mercury is not only considered a toxic pollutant in the environment but also a corrosive element in processing equipment. The presence of mercury in oil and gas can increase the exposure risk to field operators and can cause serious corrosion problems. Furthermore,it may cause catalyst poisoning and deactivation; these could lead to long,unplanned shutdowns which are neither operationally nor financially desirable as they negatively impacts the equipment life and profit. Therefore, producing oil and gas from reservoirs that contain mercury is a challenging task. This work is concerned with the thermodynamic modelling of mercury distribution in oil and gas process facilities. The main objectives of this research are to investigate the distribution of mercury in oil and gas process facilities in order to eliminate mercury impact and unplanned shutdowns.In addition it aims to identify the best location of mercury removal units in an effort to alleviate mercury exposure risks and damage. This work allows the prediction of the thermodynamic behavior of elemental mercury in a wide variety of solvents, hydrocarbon mixtures, and operating conditions where experimental data are unavailable.This was successfully achieved by using two approaches; introducing binary interaction parameters between mercury and other molecules, and modelling mercury atoms as an associating atoms. The effectiveness of the developed models is validated against experimental data.It has been observed that the process operating conditions play an important role in mercury distribution in various phases. Reducing the operating pressure and increasing operating temperature allows more heavy hydrocarbons to flash out carrying over more mercury to the gas stream. This increases the possibility of mercury accumulation in the gas processing units. The presence of heavy hydrocarbons in the produced water streams increases the solubility of elemental mercury in these streams. This negatively impacts the biosphere due to mercury pollution.
Author: Mohamed Farouk Ezzeldin
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
The presence of Hg in natural gas and gas condensate is termed as a "critical severity risk", according to health and safety regulation of the petroleum industry. Mercury affects the gas processing plants as well as refinery industries; damaging heat exchanger, poisoning the catalysts and increases the exposure risk to the field workers. Consequently, in order to establish a data base project to assess both the total mercury content and/or the dominants species for certain production field, alongside with mercury distribution within a natural gas processing plant or petrochemical industries, it is vital to develop and establish a reliable, low cost, time saving and applicable method(s) to be used in oil and gas industry as a routine method, if possible. Hence, the current study primarily aimed to follow the distribution of mercury, as a total and species, within Obaiyed plant (Egypt) as a model of natural gas processing factory. Then the second phase of this work has been devoted to conduct an environmental visibility study to develop reliable and convenient methods to measure and speciate mercury on polluted crops due to industrial waste. This part of study was followed by a screening analysis for commercial rice samples represent the product of different world regions including Egypt.
Author:
Publisher:
ISBN:
Category : Mercury
Languages : en
Pages :
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