Process Economics Program Report 5C
Published: Dec-82
Most vinyl chloride is made from ethylene via ethylene
dichloride. In this report, SRI examines two routes for making ethylene dichloride:
chlorination and oxychlorination (Sections 6 and 7). For each route, several
processes are evaluated and compared. We evaluate the pyrolysis of ethylene
dichloride to form vinyl chloride in Section 8. A completely different route
for making vinyl chloride starts with acetylene; processes by this route are
evaluated in Section 5. Several integrated operations, including the most important
balanced process, which consists of chlorination and oxychlorination of ethylene,
and pyrolysis of the resulting ethylene dichloride, are evaluated in Section
9. Section 10 discusses other processes for making ethylene dichloride; an ammonium
chloride process and an amine process are speculatively evaluated. Section 11
discusses other processes for making vinyl chloride; a process using a laser
beam as an initiator is evaluated. The use of chlorine versus hydrogen chloride,
the use of ethylene versus acetylene, the integration versus separate production
of EDC and vinyl chloride, are compared and discussed in Section 4. Some data
useful in design but not readily available in handbooks are given as Appendix
A.
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