In the refinery, isobutane is alkylated with low-molecular-weight alkenes (primarily a mixture of propylene and butylene) in the presence of a strong acid catalyst, either sulfuric acid or hydrofluoric acid. The process is referred to as a (SAAU) or a , (HFAU). However, oil refinery employees may simply refer to the unit as the Alkyl or Alky unit. The product is called alkylate and is composed of a mixture of high-octane, branched-chain paraffinic hydrocarbons (mostly isopentane and isooctane).
Alkylate is a premium gasoline blending stock because it has exceptional antiknock properties and is clean burning. Alkylate is also a key component of avgas. The octane number of the alkylate depends mainly upon the kind of olefins used and upon operating conditions.
ALKYLATION - SULFURIC
ALKYLATION - HF
TechStar Analyzer Solutions can assist your Alkylation Units with:
- Used to control the proper Iso-Butane to Olefin ratio in the reactor
- Control recycle impurities to maintain the proper Iso-Butane to Olefin ratio in the reactor
- Control RVP when Alkylate is being blended with Gasoline
- Reduce product Impurities
- Reflux control
- Prevent carry-over and loss
- Measuring O2 in furnace
- Combustion Control
- Safety
- Corrosion Protection
SOLUTIONS:
PROCESS GAS CHROMATOGRAPH
Over the past 60 years, GC products from Yokogawa have continued to evolve to meet the ever-changing needs of the process industry. Engineered with reliable electronics and intelligently designed columns & valves, the GC8000 improves ease of maintenance while reducing operating costs.
TUNABLE DIODE LASER SPECTROMETERS
Tunable Diode Laser Spectrometers (TDLS) are laser-based gas analyzers that provide real-time optical analysis. TDLS technology offers measurements for process gas, flue gas, impurity analysis, custody transfer and safety, with in-situ and extractive methods supported.