LISTA DE PRODUCTOS

Xytel offers a wide equipment range for simulating thermal EOR (ISC and steam drive) in the laboratory.

Equipment for ISC offered by Xytel consist of adiabatic combustion tubes which can be operated horizontally or vertically at pressures up to 4,500 psi, in wet or dry conditions, Ramped Temperature Oxydation cells (RTO), isothermal cells which allow quantifying the amount of fuel burned, air requirement and H2S produced during combustion, the auto-ignition properties of the oil/matrix and the quality of produced oil among other information.

Our unique design of adiabatic steam flood tube equipped with heat sensors prevents the condensation of water inside the tube wall and ensures a purely adiabatic run, representative of steam flood in a reservoir.

Our equipment are fully automated and allow unattended operation. Full training is delivered including sample preparation, steam flood or combustion test, mass balance and data analysis including the derivation of combustion kinetic parameters from well thought RTO experiments.

Xytel provides basic engineering services for In-situ combustion pilots. Basic engineering includes nitrogen and air compressor sizing based on laboratory data (fuel burnt in adiabatic combustion experiments) and reservoir characterization, water injection for well bottom cooling, water injection for wet combustion, water/oil emulsion breaking, H2S removal from production gases, site general arrangement, consequence analysis, Hazop.

Xytel is also experienced is sizing nitrogen connectivity tests allowing the oil producer simulate and check the nitrogen production at the production wells prior to air injection.

Xytel has designed and built several desalter pilot plants. Heavy crude desalting has become a critical issue for many refiners especially in South America.

Xytel designed and built several hydrocracking pilot plants in slurry mode.

Objective can be either a high or total feed conversion or a moderate conversion for flow purpose.

Our design includes catalyst preparation vessels and catalyst slurry metering.

Xytel is pleased to share knowledge in the design, construction and material selection of aliphatic alkylation pilot plants in the liquid phase or on solids.

Xytel designed and built many pilot plants for simulating processes based on TSA, PSA or SMB.

Applications include the separation of normal parraffins from isoparaffins, aromatics and naphthenes, the separation of paraxylenes from a xylene cut, or the selective removal of sulfur compounds from FCC gasoline.

Adsorption and Desorption can be operated in the liquid (picture below) or gas (left picture) phases. Control system by Xytel allows sequencing adsorption, desorption and purge phases with co or countercurrent desorption, swinging adsorber pressure or temperature, by simply entering process variables on iFix or RS View screens. Automated process cycling can be performed and adsorbent long term performance assessed.

Xytel designed and built many multi-reactor pilot plants for catalyst testing. Reactions include hydrotreating, hydrocracking, Fischer-Tropsch wax hydrocracking, reforming, paraffin isomerization, residue hydroconversion.

Reactor volume is 50mL typical. Catalyst volume is 5-10mL. The pilot plant can be designed with a common furnace for all the reactors or independant furnaces, one per reactor. Independant furnaces enable our customers to acquire a large number of data in a short period of time relative to a single catalyst, in order to derive a kinetic model or 'correlations' of the catalyst in operation.

The PLC, analyses and feed section are shared by the reactors.

Main difference with catalyst screening is that the feed is a real one (VGO, middle distillate, full range naphtha, etc.) and full mass balance. Catalyst activities and selectivities obtained using this equipment are very comparable to those obtained using larger catalyst volumes.

Xytel has designed and built 18 Circulating Riser Pilot Units. Typical capacity is 1kg/hr of VGO, CGO, residues with a CCR up to 6 wt%. Xytel also offers attrition testers, cyclic deactivation units and steaming units.

Xytel is specialized in the design, the modular construction and the installation of atmospheric, sub-atmospheric and vacuum distillation plants. Xytel also specializes in blending units such as shown below. for residue hydrocracking feed preparation.

Xytel has designed, built and commissioned numerous hydrocracking pilot plants with capacities from 1 mL/hr (high throughput testing units) to demonstration units of 10 bpd.

Hydrocracking units built by Xytel belong to three main categories:

• Mild hydrocracking for VGO hydrotreating.

• VGO conventional hydrocracking.

• Fischer-Tropsch wax hydrocracking.

VGO hydrocracking generally consists of a pretreatment (HDN) and a hydrocracking reactor in series or with intermediate separation. Hydrogen is often recycled with amine scrubbing.

Fischer-Tropsch wax hydrocracking units to middle distillate production (jet fuel or diesel) have been delivered by Xytel from the high throughput size (10 mL reactors) to the demonstration size.

Xytel has designed and built many hydrotreating pilot plants for the production of Ultra-Low sulfur gasoline and diesel fuels. Pilot plants can include one or several reactors with intermediate sampling or separation. Hydrogen recycling with or without caustic scrubbing and liquid recycling are available on option. Multi fixed bed reactors for hydrotreating coker and FCC gasoline is our expertise.

Xytel has also designed and built several hydrotreating pilot plants for performing the HDO of bio feedstocks. Feeds are very heterogeneous and usually contain solid particles which requires special equipment election.

Xytel offers pilot plants for paraffin isomerization in the liquid (chlorinated alumina) or gas (zeolite) phases, with feed purification modules when needed. Isomerate can be analyzed on line.

Xytel has built several delayed cokers and visbreakers for customers such as BP Chemical, IOCL, RIPP, Reliance, Repsol or CB&I.

A Xytel proprietary, explosion proof furnace allows proper, mild heating of the vacuum residues so as to minimize furnace coking. Capacity is 0.1-1kg/hr. Coke level in the coke drum is measured by gammametry.

Xytel has designed and built several SDA pilot plants.

Residue deasphalting is performed by liquid-liquid extraction using a solvent such as:

• Propane

• Butane

• Pentane

• Super critical CO2

Asphalt plugging is prevented by building the asphalt section in double pipe with the circulation of hot oil to heat asphalt as far as a product tank.

Xytel has designed and built numerous Reforming pilot plants for the production of high octane gasoline or aromatics rich cuts.

Xytel provides operation training adapted to each type of reforming process or catalyst type: Low pressure, Platinum-Tin type catalysts or medium pressure, Platinum–Rhenium type semi-regenerative process with catalyst passivation.

Xytel also offers pilot plants allowing to perform reaction-rejuvenation cycles and investigate the impact of regenerations on catalyst properties.

Pilot plants for research in petroleum refining have been central to Xytel’s business throughout its 37 year history. And, they still are.

From the traditional areas of hydroprocessing (fixed bed hydrocracking, hydrotreating and residue hydroconversion) to some of the latest technologies (wax hydrocracking, deep conversion in slurry or ebullated bed), Xytel is the world’s leader.

We process the heaviest crude fractions to the lightest; from high pressure reactions to vacuum distillations; from gram to tens of kilogram catalyst charges.

Xytel has design and built several pilot plants for Water Gas Shift and COS removal, including high temperature and low temperature shift reactors in series or adiabatic ‘one step’ converters. Reactors for COS removal from coal or sour gases have also been delivered.

Xytel is pleased to offer his knowledge and experience in the design and construction of oxo synthesis pilot plants. Acetic acid pilot plants are a good example.

Aromatic alkylation pilot plants in the gas phase, over zeolitic catalysts such as ZSM-5 have been built and commissioned by Xytel

Xytel built and commissioned many styrene or alpha-methylstyrene pilot plant units equipped with adiabatic dehydrogenation reactors.

Xytel has designed and built Fischer-Tropsch pilot plants for 15 years from multi-reactor systems for catalyst high throughput screening to 10 gal/d pilot plants. Our capabilities include the design of fixed bed reactors with an optimal control of the reaction exothermicity, slurry reactors with continuous product filtration, hot and cold traps, management of waxy products so as to prevent line plugging, specific devices for start-up.

Xytel also specializes in wax hydrocracking pilot plants which can be integrated downstream Fischer-Tropsch pilot plants.

Xytel offers membrane systems to tune the H2/CO molar ratio at the Fischer-Tropsch reactor inlet

Xytel is pleased to offer pilot plants for the selective hydrogenation of steam cracking cuts, the hydrogenation of aromatics in conversion gasoils to increase cetane index, the hydrogenation of petrochemical intermediates such as nitrobenzene.

Batch and continuous, fixed bed configurations are available for the hydrogenation of fine chemicals.

Xytel has designed and built various pilot plants for the oxidative or non oxidative dehydrogenation of alkanes, naphthenes and olefins, including ethane, propane, isobutene and long chain paraffins for LAB synthesis.

Xytel is pleased to offer the design of pilot plants for selective oxidations in fixed (left picture) and fluidized bed (picture below). Our fluidized bed design includes a software for the investigation of bed defluidization.

Feedstock/oil oxidation properties can also be determined in a specific Ramped Temperature Oxidation Equipment (RTO) by Xytel.

Xytel has designed and built numerous steam reforming and autothermal reforming (ATR) pilot plants from the laboratory to the demonstration scale. Xytel also offers a membrane system to reduce the H2/CO ratio in the gaseous product if needed for alcohol or Fischer-Tropsch synthesis.

A 25 sm3/hr natural gas reformer is under construction in the pictures shown below and on the left.

Xytel offers pilot plant plants for removing oxygen containing compounds from biofuels by hydrotreating.

Bio feedstocks may contain particles. Xytel may provide assistance for fixing corrosion issues or concerns.

Xytel has designed and built Biofeedstock hydrotreating/upgrading pilot plants from the bench scale to the demonstration plant.

Do not hesitate to revert to us for any feasibility question/request you may have.

Xytel developed a proprietary design of gas phase reactor allowing simulating industrial gas phase reactors. Main reactor features are:

• An excellent control of the exothermicity of the polymerization reaction especially when reaction starts.

• A mild agitation plus a gas box.

• No dead zone in the reactor.

This reactor is well adapted to LLDPE, HDPE and PP polymerization reactions. Catalyst is introduced in the reactor under inert. Hydrogen and copolymer concentrations in the gas phase are determined on line.

Xytel specializes in 1-50kg/hr HDPE, LLDPE and PP polymerization plants including one or more slurry reactors in series with one or more gas phase reactors, pre-polymerization reactor, solvent distillation and recycling, drying.

Xytel has designed and built several pilot plants for the synthesis for ABS and polybutadiene including liquid film evaporators and vacuum distillation columns to select the desired molecular weights.