ETI has delivered proven solutions to the oil, gas, petrochemical, gas transmission, utility and power industries for decades. Now part of JZHC, customers worldwide can count on ETI expertise backed by the resources of an industry leader.
The ETI Oil Treating Variance Solution (OTVS) is a patented process* designed to use indirect heating and multi-stage separation to meet RVP or Vapor Pressure of Crude Oil (VPCRx) specification prior to entering oil storage tanks. The OTVS system provides the following benefits:
*Patents #9828556, #10053636, #10301554, #10159023
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Triethylene glycol (TEG) is the predominant liquid desiccant employed to remove water vapor from natural gas streams. ETI is an industry leader in providing glycol dehydration equipment for natural gas storage, gas transmission and gas gathering applications.
Technical Innovations Available from ETI
Equipment Provided by ETI for Glycol Dehydration Applications
Emission Abatement – Still Column Effluent
As a compliment to our glycol dehydration equipment, ETI and John Zink can provide enclosed combustors or thermal oxidizers to destroy any hazardous air pollutants (HAPs) including Benzene, Toluene, Ethylbenzene and Xylene (BTEX) as well as Volatile Organic Compounds (VOCs). Destruction efficiencies range from 95% to 99.9% depending on equipment design.
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ETI provides solid desiccant adsorption units for numerous applications including:
Adsorption processes use one or more solid adsorbents which provide a surface adhesion to certain molecules within a fluid stream. Common solid adsorbents used as desiccants include molecular sieves, activated alumina, calcium chloride and silica gels including Sorbead®.
Common fluid streams to be purified include natural gas and liquid hydrocarbon streams such as propane or ethane propane mixes and LPG product streams. The contaminants removed from the fluid stream, known as adsorbates, can include water, H2S, CO2,and heavy hydrocarbons.
The adsorption process is a batch process, with the process fluid flowing through one or more adsorber vessels until the desiccant is saturated with the adsorbate. Upon saturation, the spent bed is taken off-line and regenerated with hot gases or a pressure swing cycle to remove the adsorbate.
ETI can also supply process design evaluations to expand or upgrade existing facilities and can recommend equipment upgrades including:
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ETI provides treatment systems to process and remove particulates and liquids from gas streams. The process equipment may consist of standalone vessels or skid-mounted modules depending upon the application and customer requirements.
The components of a filter separator/coalescer require a vessel to house the filter elements, a quick opening closure, the filter elements and mist extraction. The differences between whether a filter is a separator or a coalescer depends upon the direction of gas flow through the filter elements and the presence of pre- or post-mist elimination devices. Mist elimination devices are principally vane sections, double-pocket-vane or single-vane packs or mesh pads, or combo-vane-mesh packs.
The principal solid contaminants removed in filter separators are mill scales, rust, dust, formation fines, corrosion by-products, paraffins, and asphaltenes. The principal liquid contaminants removed in coalescing filters are water, hydrocarbons, and compressor lube oils. In each filter vessel there are five basic features: primary separation, filtration, secondary separation, mist extractor, and controlled liquid discharge.
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Acid gases must be removed from the process gas due to pipeline transmission or process requirements, cryogenic processes, or corrosion mitigation. Amine treating includes two operations: 1) absorption of the acid gas into the amine solution and 2) regeneration of the rich amine solution through heat and steam stripping. Regenerated amine is circulated back to the absorber.
The components of an amine gas treating plant include the contactor tower, flash tank, cross exchanger, particulate filter, charcoal filter, reboiler still column, reboiler, overhead condenser, condensate accumulator, reflux pump, booster pump, air cooler and injection pump.
ETI provides treatment systems to process and remove acid gases, hydrogen sulfide, and/or carbon dioxide from natural gas. The ETI process equipment scope of supply consists of both standalone vessels and skid-mounted modules and ETI can supply complete Amine Units or parts of the system depending upon the application and customer need.
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Water Bath Heaters
Water bath heaters are typically used in the following applications:
ETI designs and fabricates water bath heaters from 24” to 138” diameter for the oil, gas, gas storage, gas transmission and utility industries. The ETI units can be customized with the following options:
Salt Bath Heaters
As an alternative to hot oil medium heaters, ETI provides high-temperature heating systems for regeneration gas systems requiring gas heated to 450° to 700°F. The most common indirect heating system employees a molten eutectic salt mixture with a melting point of 288oFand is referred to as “Salt Bath Heater.” It utilizes conventional “U”-Tube firetubes to keep the salt molten. It is a convenient way to heat the regeneration gas stream indirectly to regenerate Molesieve or Silica gel adsorbents (dry bed adsorbents).
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ETI designs and fabricates convective heaters for use in gas, adsorptive regeneration, process heating, and heat transfer industries. ETI’s Model HTE (High Thermal Efficiency) is unique in that it has no radiant section. Instead, the heater is all economizer. In order to understand the design principle, one must keep in mind that the efficiency of any fired heater is only a function of the stack gas temperature and the amount of excess air used (assuming complete combustion). The excess air can be best controlled with a power burner and is usually set at 15% to 20% with gaseous fuels. A good burner doesn’t require the excess air for complete combustion, rather the excess is set to compensate for barometric and ambient temperature changes so that the air injected will never drop below the stoichiometric quantity required for complete combustion.
The ETI HTE heater introduces cool ambient air or re-circulated flue gas into the combustion chamber in order to reduce the combustion gas temperature to the desired level. Typically, the temperature is reduced from a flame temperature of 2500°F to 1100°F, although it may be reduced to a much lower value if sensitive or heat reactive materials are being processed. The high temperature energy is traded for a lower temperature gas with greater volume. Quench air is introduced to the combustion chamber with a control valve on the air or flue gas recirculating (FGR) fan.
ETI’s HTE heater has fast response and very little stored heat. If fluid flow stops, the burner is shut off by a low flow detector, or a high process or tube wall temperature controller and the process coil bundle is not damaged. Because a higher volume of convection gas is circulated, the outside transfer rate may be increased on the stack side of the exchanger, resulting in higher efficiency with fewer tubes.
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Service after the sale is smart. That’s why we field the largest, most technically advanced worldwide service team of its kind. We’ll back you up with thousands of parts in stock, along with service and support like no other.
Wet gas enters the absorber contacting the lean glycol in a packed section where water vapor is absorbed into the glycol. Rich, water-laden glycol exits from the absorber and flows to the regeneration system while dry gas exits the top of the absorber.
The rich glycol passes through a series of pre-heat exchangers, flash tank, and filters before entering the reboiler through the reboiler still column. The rich glycol is heated to approximately 400°F as water is boiled off and exits through the vent atop the reboiler still.
The Lean glycol is cooled prior to being pumped through a glycol/gas heat exchanger and into the absorber to continue the process.
The patented Oil Treating Variance Solution (OTVS) from ETI, uses indirect heating and multi-stage separation to meet RVP or Vapor Pressure of Crude Oil (VPCRx) specification prior to entering oil storage tanks. The results: increased safety and higher yields along with controlled capital and operating cost—all while using up to 60 % less plot space.
Let our Koch Specialty Plant Services (KSPS) team of experts install the equipment JZHC designs and manufactures for you. No more third-party hassles. JZHC and KSPS can provide everything you need from design to installation, start-up and training. That’s smart. That’s JZHC.
