What are the directions for further processing of C5? What markets are there?

C5 has different sources and different uses. C5 from ethylene plants contains dienes, from which cyclodienes can be extracted. Shell has many such plants. C5 from refineries can be used to produce blowing agents (mainly saturated hydrocarbons).

Synthesis of cyclopentadiene-based products (1) Polymerization of the C5 fraction to produce dicyclopentadiene Yield of dicyclopentadiene: 94.8%. 　　(2) Depolymerization of dicyclopentadiene to cyclopentadiene: Cyclopentadiene yield: 92%; depolymerization conversion rate: 98%; coking polymerization rate: less than 6%, yielding pure cyclopentadiene (95%-99%). 　　(3) Hydrogenation of dicyclopentadiene to **dicyclopentadiene**: Yield of dicyclopentadiene: 82%; pure **dicyclopentadiene** (over 99%) is obtained. 　　(4) Selective hydrogenation of cyclopentadiene to produce cyclopentene: conversion rate of 99%, selectivity of 97%.

Thank you. Could you let me know which companies have this kind of technology?

I have operated a set of C5 separation units, primarily used for separating saturated hydrocarbons, in Jiangyin, for producing blowing agents. Three towers: first the tower for removing C4, then the tower for removing C6, and finally the separation of C5 isomers.

Very interested. What are the operating costs? Market?: call:

The utilization of the C5 fraction generally falls into three categories: one is to fully separate the various components for use； Second, the mixed C5 fraction is utilized directly ； Third, some are utilized separately. First, the complete separation of the C5 fraction – China’s institutions that possess this technology and have achieved successful industrial application are the Beijing Research Institute of Chemical Technology and Nanjing University of Technology. Complete separation of the C5 fraction yields high-value chemical raw materials such as isoprene, mesitylene, cyclopentadiene, pentenes, and pentane; isoprene can be used to produce isoprene rubber, SIS, and butyl rubber ； Isopentadiene can be used to produce high-grade petroleum resins and curing agents ； In addition to being used as fuels, pentene and pentane can also be used to produce fuel additives through a series of reactions such as alkylation and isomerization. In addition, various individual components in the C5 fraction can also be used as raw materials for producing a range of fine chemical products such as pesticides, fragrances, crop protection agents, and flame retardants. Second, the main ways to utilize mixed C5 fractions directly are as raw materials for ethylene production, catalytic cracking, and aromatization.