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A single integrated vacuum system

Failure to design the vacuum unit as an integrated system will invariably result in unsatisfactory yield and poor product quality (high vanadium, nickel, microcarbon, or asphaltenes), and ultimately, an unscheduled shutdown. To avoid these revamp problems the charge pump, fired heater, ...


A time for grass roots thinking ?

Within the past year or two spiking crude prices and surging refinery margins have led to overheated talk about increasing refinery capacity worldwide. Plans for construction of as many 60 grass roots refineries have been discussed. But stretched out lead times for major equipment and ...


About Axens

Axens is an international provider of process licensing technologies, catalysts, adsorbents and services, with a global reputation for basic engineering design excellence. The main scope of Axens' business is focused on the conversion of oil, coal, natural gas and biomass to clean fuels ...


All about excellence in the energy and chemical industry

KBC exists to help you achieve and sustain excellent operational performance, through the actions of our people, fused with the application of our digitalization technology and best practices, powered by the Cloud.Better decisions - faster, Flawless execution - every time and  ...


Avoid fired heater coking

For many refiners, heater coking in Crude and Vacuum Distillation Units (CDU/VDUs) is a common occurrence. Many units around the world are shut down every two years, every year, or even every six months to deal with chronic heater coking. However, with the right design features driven ...


Avoid unnecessary costs by understanding process problems before taking action

When a piece of process equipment starts experiencing problems and producing off-spec product, every engineer’s reaction is to make a change to “fix” the problem and get it back on-spec. yet, many plants lack adequate instrumentation to completely diagnose the cause of ...


Axens overview

Axens is a leading global provider of technologies, catalysts, adsorbents, services and equipment. From oil refining, petrochemicals and gas processing, to renewable & alternative fuels and water treatment, Axens solutions are used at major industrial plants around the world. SOLUTIONS ...


Celebrating a century of innovation in the oil & gas industry

UOP celebrates its 100th year in business in 2014, and in many ways our history is analogous to the development of the world’s oil and gas industry. We have accomplished many great things during the last century. For that, we owe a tremendous debt of gratitude to our customers, who ...


Comparing physical solvents for acid gas removal

Physical solvents such as DEPG, NMP, Methanol, and Propylene Carbonate are often used to treat sour gas. These physical solvents differ from chemical solvents such as ethanolamines and hot potassium carbonate in a number of ways. The regeneration of chemical solvents is achieved by the ...


Condensate is crude

Ultra-light crudes and condensates are here to stay. These streams have flooded the market in recent years, and many of them are deeply discounted against reference crudes. Refiners have been processing increasing percentages of this light material through their Crude Distillation Units ...


Designing deepcut vacuum units that really work

Every barrel of vacuum gas oil (VGO) you can save from being reduced to coke in the delayed coker unit is a barrel more that can go to the FCCU. That’s a good reason to raise HVGO cutpoint. But how to do it? Some people think the job can be done just by running computer models in ...


Distillation and separation technologies

Improve performance and minimize expenditure. Refinery operators want to improve their distillation performance to optimise their assets, minimise their expenditure and capital investment, and debottleneck their operations. Through the licensing of bulk crude distillation units, high-vacuum ...


Equipment design matters

Many attractive projects fail to meet expectations at startup. Disappointing performance often results from bad simulation practices and/or poor equipment design rather than faulty execution. Refineries are currently considering FCC revamps to increase olefins for more alky unit feed, ...


Gas processing

ProMax® is a powerful and versatile process simulation package that is used worldwide to design and optimize gas processing, refining and chemical facilities. Totally integrated with Microsoft Visio®, Excel® and Word®, ProMax is the best simulation tool for designing gas ...


Interface measurement in desalters

Interface measurements in desalters are often regarded as not being very critical, even though every drop of oil, to be refined, passes through the desalter. As refineries try to maximize their margins, so-called opportunity crudes are often used. These crude oils generally contain increased ...


Is pinch enough?

Back in the late 1970’s and early 1980’s when fuel gas prices were high, energy utilization assumed major importance. A new method of calculating heat exchanger networks was developed. It was called Pinch Technology. Today pinch has been rediscovered by engineers who have access ...


ITW Online Cleaning

Will revolutionize turnaround operations and operational excellence by optimizing: productivity, operability, safety health and environment, reliability, product quality, energy efficiency, CO2 SOX NOX VOC emissions, maintenance and repair and operational requirements. An entire Unit can ...


Linde Engineering at a glance

The Linde Group - In the 2014 financial year, The Linde Group generated revenue ofEUR 17.047 bn, making it the largest gases and engineering company in the world with approximately 65,500 employees working in more than 100 countries worldwide. The strategy of The Linde Group is geared ...


Maximize reliability in grassroots crude units

Crude unit operators are far too familiar with a long list of crude unit reliability problems including fouling in heat exchangers and fired heaters, poor desalting, corrosion of piping and equipment, and coking in the vacuum column wash zone. Many millions of dollars have been spent fighting ...


Measurement instruments and servicing

Our Measurement Instruments business designs and manufactures a range of bespoke, low maintenance, high reliability instruments providing operators with real time measurements and in-situ visualisation. Our experienced team technically supports an extensive range of nucleonic measurement ...


MECS® - Thermo Z™ the optimum–H™ system

The ideal design solution for MECS–Thermo Z gas to gas heat exchangers to eliminate cold end corrosion. When gas temperatures and dew point conditions require maximum corrosion protection from cold spots, the Optimum-h™ System can provide a value engineered approach to raising ...


MECS®–Thermo Z™ welded plate heat exchangers

Plant engineers in the know choose MECS®–THERMO Z™ for maximum waste heat recovery and the best delivered value. MECS®–ThermoZ™ is a highly efficient heat exchanger suitable for many industrial processes where gas temperatures may be up to 1500°F (816°C). ...


Modern crude distillation, modularized

Global interest in modular refinery construction is surging. Small modular refineries are attractive to investors for several important reasons: SPEED: Project time from contract execution to start-up can be as short as 18-24 months. LOGISTICAL ADVANTAGES:Modular refineries can be built ...


Moving gamma scanning forward – quantitative analysis of tray capacity

Improving process operating margins can include maximising production of higher value products and/or minimising production costs. Process plants depend heavily on fractionation towers to produce products meeting customer specifications. Tower gamma scanning is well established in the ...


Myth of the 1000°F vacuum unit cutpoint

Canadian Synbit and Dilbit crudes will come to make-up a substantial fraction of feedstocks to North American refineries. Today, however, for the most part refiners both north and south of the 40° parallel seem to be unaware of the extreme challenges this change will present. To run ...


Nasty stuff

Heavy crudes are here to stay. As longs as oil prices remain high, Canadian, Venezuelan, Deep Water Gulf of Mexico, Mexican and other low API gravity crude oils will play an ever more important role in supplying world refineries. And prices promise to remain high because gainsayers notwithstanding, ...


Oil sands crude – profits and problems?

Canadian bitumen production currently runs about 1 MMbpd, with some being sold as Synbit and Dilbit. Over the next 10-12 years output is expected to increase to 3.5 MMbpd and more refiners will begin investing to process it and come to depend on the Synbit and Dilbit for a significant ...


On budget, on time, offine

Flawless project execution will not prevent a unit shutdown due to selecting the wrong metallurgy for a challenging crude slate. No matter how well it is fabricated and installed, a shell and tube exchanger with cold, high viscosity vacuum resid on the tube side will have poor heat transfer ...


Operating a fouled process unit? What is it costing you?

ITW Online Cleaning Technology, applied proactively during a run, restores unit performance to near start of run conditions in as low as 24 hours oil-to-oil without the need for opening equipment. By utilizing ITW’s patented asphaltene stabilization and/or polymer modification technologies, ...


Opportunity knocks

A group of interesting articles* deals with opportunity crudes, a mixed breed that includes very heavy, sour and high total acid number types as well as those with unexceptional naphthenic acid content but which do have significant concentrations of aliphatic acids or possess the ability ...


Opportunity or Annoyance?

Price differentials between conventional and opportunity crudes compel refiners to process increasing percentages of lower valued opportunity crude. However, as many refiners have learned the hard way, opportunity crudes are tied to unique processing challenges. Furthermore, existing crude ...


Optimizing CO2 capture, dehydration and compression facilities

The removal of CO2 by liquid absorbents is widely implemented in the field of gas processing, chemical production, and coal gasification. Many power plants are looking at post-combustion CO2 recovery to meet environmental regulations and to produce CO2 for enhanced oil recovery applications. ...


PackView™ - quantitative analysis of packing mal-distribution

The last issue of Tracerco Insight (Vol 6 Ed 1) featured our patent pending FrothView™ technology illustrating how using Tracerco’s new measurement detector technology and analysis of gamma scan data provides quantitative information about the useful capacity of trayed towers. ...


Processing heavy Canadian crude

Reducing crude oil cost is the major incentive driving crude and vacuum unit projects to handle heavy Canadian crudes. But such crudes–Albian Heavy, Christina Lake, MacKay River and others derived from oil sands–today present refiners with a unique set of problems not just ...


ProMax®

ProMax is built on over 40 years of continual research and development efforts. Our team of development engineers has consistently found innovative ways to model processes so that the end results accurately refl ect the actual operating conditions of gas processing, refi ning and chemical ...


PURASPEC CLEAR Chloride guards

Chlorides in a refinery. Where does it come from? Chlorides are introduced into the refinery flowsheet in several ways. Some crude sources can bring both inorganic and organic chloride content. Desalter processes and chemical additives are used to remove chlorides and prevent corrosion ...


RVP in process: ensure safety, comply with specifications, optimize profits

Pipeline operators, offshore platforms, terminals, fuel depots or oil tankers detect the vapor pressure, before transporting crude oil or other petrochemical products such as Gasoline or LPG for subsequent processing. It is absolutely necessary to know the vapor pressure of the transported ...


S, Ni, V, and Fe analysis of crude oil using HDXRF®

Test methods for measuring sulfur content, like ASTM D4294 and ISO 8754, have become critical for assessing the value of crude oil. The blending of crude oils from different sources has become more commonplace within the industry to meet specifications for the classification of sweet crude ...


Selecting the best solvent for gas treating

Selecting the best amine/solvent for gas treating is not a trivial task. There are a number of amines available to remove contaminants such as CO2, H2 S and organic sulfur compounds from sour gas streams. The most commonly used amines are monoethanolamine (MEA), diethanolamine (DEA), and ...


Sulfur recovery

With increasing environmental concerns, sulfur recovery has become one of the leading issues in emissions reduction. Bryan Research & Engineering’s process simulator, ProMax, contains a complete reactor suite for modeling kinetic (plug flow and stirred tank), equilibrium, conversion, ...


Simplify crude assay importing in UniSim design by utilizing H/CAMS

Haverly H/CAMS is the industry leading assay crude management software with over 2000 assays. Honeywell's UniSim Design software links to Haverly H/CAMS via a COM interface and allows you to import proprietary assays with just a few clicks. This functionality increases engineering effectiveness, ...