Types Raffinate

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1 types

1.1 raffinate-1 or c4r1
1.2 raffinate-2 or c4r2
1.3 raffinate-3 or c4r3
1.4 raffinate-4 or c4r4





types
raffinate-1 or c4r1

in naphtha cracking process, c4r1 refers c4 residual obtained after separation of 1,3-butadiene c4 raffinate stream , which, consists of isobutylene 40~50 wt% , cis- or trans-2-butene 30~35 wt%. c4r1 side product in 1,3-butadiene plant , feed tert-butyl alcohol plant.


raffinate-2 or c4r2

in naphtha cracking process, c4r2 refers c4 residual obtained after separation of 1,3-butadiene , isobutylene c4 raffinate stream , consists of cis- or trans-2-butene 50~60 wt%, 1-butene 10~15 wt%, , n-butane ~20 wt%. c4r2 side product in tert-butyl alcohol plant if c4r1 used feed.


raffinate-3 or c4r3

in naphtha cracking process, c4r3 refers c4 residual obtained after separation of 1,3-butadiene, isobutylene, , 1-butene c4 raffinate stream consists of cis- or trans-2-butene, n-butane, , unseparated 1-butene. c4r3 being process through selective hydrogenation unit (shu) , cdhydro deisobutenizer unit produce isobutylene feed tert-butyl alcohol plant.


raffinate-4 or c4r4

in naphtha cracking process, c4r4 refers c4 residual obtained after separation of 1,3-butadiene, isobutylene, 1-butene, , cis- or trans-2-butene c4 raffinate stream consists of n-butane. c4r4 side product in tert-butyl alcohol plant if c4r3 used feed.







Comments

  1. ChemAnalyst18 August 2021 at 23:08

    During the second quarter of 2021, Raffinate price supplies in the North American region surged owing to the ample availability of the upstream Naphtha. The industrial infrastructure in the US Gulf Coast recovered from the impact of February winter storm pushing up the operational rates at the Naphtha crackers. However, few crackers struggled to achieve the optimum efficiency and operated at lower rates. Even though the production of automobiles reduced amid the global shortage of semiconductors the offtakes were surged from the downstream refiners throughout the second quarter. Enquiries of C-4 Raffinate from the Butadiene producers bolstered throughout the North American region. Raffinate prices in the region remained firm in the second quarter due to firming upstream crude oil.

    https://www.chemanalyst.com/Pricing-data/raffinate-1175

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