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(Chemistry) chem a colourless gaseous hydrocarbon that is an isomer of butane and which is used as a fuel and a refrigerant. Formula: (CH3)3CH


(ˌaɪ səˈbyu teɪn, -byuˈteɪn)

a colorless, flammable gas, C4H10, used as a fuel, a refrigerant, and in the manufacture of gasoline by alkylation.
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According to the thermal (or exergy) efficiency, eleven examined working fluids can be sorted from high to low performances as: cyclohexane, n-hexane, R-113, n-pentane and Iso-pentane, R-245fa, n-butane, Iso-butane, RC-318 and R-236fa, and at last R-227ea.
As a result, the partnership's equity NGL volumes were weighted less toward ethane and more toward propane, iso-butane, normal butane and natural gasoline, and are expected to remain this way through much of 2016.
Additional composition limits include (1) a maximum total C4+ content (such as the sum of normal butane, iso-butane, and heavier hydrocarbons) of 1.
It details emerging market trends, pricing, and market news for ethane, iso-butane, natural gasoline, normal butane, and propane in the Japan, Persian Gulf, Mediterranean, Northwest Europe, and US Gulf Coast markets.
The most commonly used natural refrigerants are ammonia, carbon dioxide, propane and iso-butane.
The principal inputs to the process are liquid olefins and iso-butane (iC4).
To accommodate the significant increase in NGL production resulting from the processing expansions, MarkWest Liberty is constructing fractionation capacity of 60,000 barrels per day, which will allow for the production of commercial iso-butane, normal butane, and natural gasoline in addition to the current capabilities of producing purity propane.
Tenders are invited for Supply of Iso-Butane Gas With Cylinder
for the license and engineering design of a grassroots iso-butane dehydrogenation unit to be built in Changyi, Shandong Province, China.
The processing plant has an above-ground NGLs storage capacity of 190,000 barrels and is interconnected with Crosstex's Cajun-Sibon pipeline and Riverside fractionation system, which separates ethane, propane, iso-butane, normal butane and natural gasoline.
Limited Tenders are invited for 1)Commercial Straight Run (Sr-Grade) Lpg, Conforming To Is:4576, Having Distinct Mercaptan Odour As Per Oisd Norms, Propane 30-58 Percent , Butane & Iso-Butane 70 Percent Max.
dehydrogenation technology offered from CB&I and Clariantos tailor-made CATOFIN catalyst to process feeds containing 165,000 metric tons per year (MTA) of propane and 250,000 MTA of iso-butane for the joint production of propylene and isobutylene.