sulfuric acid alkylation unit

CSB Releases Analysis Showing February 2014 Release of

On March 10 2014 in the same sulfuric acid alkylation unit two contract workers were sprayed with sulfuric acid while conducting planned maintenance work to remove piping in the alkylation unit The sulfuric acid sprayed the two workers when they cut into the piping using a portable band saw The piping was not drained of process...

Alkylating Refinery Grade Propylene

acid alkylation units use the DuPont® STRATCO sulfuric acid alkylation technology See Figure 1 Olefin feed and make-up isobutane are combined with recycle isobutane from the distillation and refrigeration...

Alky Deisobutanizer Optimization

The alkylation unit is fed isobutane and olefinic C4s which react in a sulfuric acid catalyst to produce C8 alkylate In addition to alkylate the reactor effluent contains excess isobutane n-butane and residual olefinic C4s...

Process collaboration Hydrofluoric acid alkylation

The ABB Process Fourier Transform Infrared FTIR Analyzer for HF Hydrofluoric Acid Alkylation Refinery Process Unit Optimization jointly developed with ConocoPhillips helps petroleum refineries to operate...

SECTION 50 REFINING INDUSTRY DAMAGE

Amine corrosion refers to the general and/or localized corrosion that occurs principally on carbon steel in amine treating process Corrosion is not caused by the amine itself but results from dissolved acid...

Alkylation Unit

The sulfuric acid removed usually is regenerated in a sulfuric acid plant which is generally not a part of the alkylation unit The acid consumption typically ranges from 13 to 30 lb per barrel of alkylate produced...

Alkylation Process For Production Of Motor Fuels

The sulfuric acid recovery process SARP developed to reduce the acid consumption in H2SO4 alkylation units was another contribution to alkylation technology In this process the spent acid from an alkylation unit reacts with a portion of the olefin feed to form dialkylsulfat...

Wet sulfuric acid process

The wet sulfuric acid process WSA process Spent acid from an Alkylation unit Claus process tail gas The WSA process can also be used for production of sulfuric acid from sulfur burning or for regeneration of the spent acid from eg alkylation plants Wet catalysis processes differ from other contact sulfuric acid processes in that...

Sulfuric Acid Alkylation Unit

Sulfuric Acid Alkylation Unit - Shutdown Procedure - posted in Refining Hydrocarbons Oil and Gas Why is it necessary to empty complete Alkylation Unit when unit is in circulation/shutdown regime more than 72 hours Why is it necessary to perform neutralization and empty the complete unit instead of having time-unlimited...

STRATCO ALKYLATION TECHNOLOGY STRATCO

revamp an existing alkylation unit adding a segregated stage of amylenes into a butylene alkylation unit Because of the larger spending range of sulfuric acid the amount of alkylate product that can be produced per pound of sulfuric ˜e STRATCO® Alkylation Technology is the world leader with over 90...

Refinery Operations » Expanding Alkylation Unit Capacity

In this aspect acid consumption remains a significant operating expense for many sulfuric acid H 2 SO 4 alkylation units One technology supplier CDTECH claims to have developed an alkylation process CDAlky that produces top quality alkylate while reducing H 2 SO 4...

Acid Strength Control in a Sulfuric Acid Alkylation

Summary Sulfuric acid alkylation units are characterized by the interaction between two very different and competing process behaviors the hydrocarbon side where iso-butane and C3/4 olefins are reacted to...

Alkylation definition of alkylation by Medical dictionary

The unit will be utilising CB I s advanced CDAlky sulfuric acid alkylation technology for production of 23 000 bpd of alkylate based on 100 C5 olefin feedstock and marks CB I s first US license for the technology...

Shutting Down A Sulfuric Acid Alkylation Unit Reactor

Figure 125 Key reaction paths for alkylation and related reactions 9 Low temperature eg 70 C and below yields a higher TMP product slate This is a...

Alkylation is an important source for octane in gasoline

Either sulfuric or hydrofluoric acid is used as the catalyst for the alkylation reaction Alkylate is high in octane but has low volatility and can be added to motor gasoline and aviation gasoline to increase octane while meeting stringent volatility specifications...

Process critical equipment for top alkylation unit

The treating system performance of sulfuric acid alkylation units is critical for effective fractionation and unit reliability Proper treating results in optimum fractionation and therefore optimum product quality while simultaneously minimizing corrosion and fouling in treating and fractionation sections of the unit...

The Acceleration of Alkylation The New Wave of

WHITE PAPER / THE ACCELERATION OF ALKYLATION THE NEW WAVE OF ALKYLATION ACTIVITY IN THE US BY Geoff Stephenson PE AND Dominic Varraveto PE Refiner Grassroots sulfuric acid unit Gulf Coast ongoing project Refiner Sulfuric acid debottleneck Texas ongoing project...

STRATCO® Alkylation Technology

The STRATCO® Alkylation Technology is a sulfuric acid catalyzed process that converts low-value straight-chain olefins into high-value branched components called alkylate Alkylate with its superior blending properties...

Industrial Refining Alkylation Units

Alkylation processes use either sulfuric or hydrofluoric acid as the catalyst to promote the alkylation reaction Each catalyst has different operating temperatures and pressures and the sulfuric acid is liquid at unit operating conditions unlike hydrofluoric acid which is a gas at unit operating conditions...

Alkylation

If a sulfuric acid plant must be constructed specifically to support an alkylation unit such construction will have a significant impact on both the initial requirements for capital and ongoing costs of operation...

Spent sulphuric acid regeneration SAR process

Spent sulphuric acid regeneration SAR process with 992 H2SO4 typical for alkylation use The SO2 bearing gas is then dried by contact with 93 to 96 H2SO4 in a packed bed acid tower or drying tower This unit is similar in design and operation to others in the SO3 absorption system and will be discussed there...

Slash costs with this advanced sulfuric

Lower costs for converting alkylation units from hydrofluoric to sulfuric acid For petroleum refineries the cost of converting hydrofluoric-acid-based alkylation units to the relatively safer sulfuric-acid-based alkylation process diagram has been...

Zhejiang Petroleum Chemical Co Awards DuPont

This reliable dry gas technology produces the desired sulfuric acid products for upstream alkylation acrylonitrile and methyl methacrylate unit performance Reliability on-stream time and emission performance are the most important considerations when selecting SAR technology...

Safer with Sulfur

sulfuric acid alkylation units require that contacting between the phases be achieved with rotating mixers or static reactor internals to...

Lower costs for converting alkylation units from

For petroleum refineries the cost of converting hydrofluoric-acid-based alkylation units to the relatively safer sulfuric-acid-based alkylation process diagram has been cost-prohibitive and has lacked specific economic benefits...

Sulfuric Acid Corrosion Inspectioneering

Sulphuric Acid Corrosion is an acidic environment disease commonly occurring in sulfuric acid alkylation units where process control or water contents of acids deviate from design operation As with HF alkylation units sulfuric acid carryover into equipment and piping systems that were not constructed to resist sulfuric acid at...

Alkylation Unit Monitoring FINAL 2008

Alkylation Unit Monitoring Page 4 Table 1 - Sulfuric Acid Dilution Factors...

Alkylation unit

- 1 - INTRODUCTION TO SULFURIC ACID ALKYLATION UNIT PROCESS DESIGN I INTRODUCTION Alkylation first commercialized in...

H2SO4 vs HF

apparent based on these tests that a sulfuric acid aerosol formation will not occur under conditions similar to those present in a STRATCO ® Effluent Refrigerated Alkylation Unit...

Alkylation

Enhance Alkylation Unit Safety with Online Diagnostics With the inherent dangers and restricted access associated with alkylation units it can be a significant challenge to gain the critical asset monitoring data needed to keep your process running smoothly...

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