<p>A refrigeration system for an ethylene plant uses a low pressure demethanizer and a binary refrigerant comprising a mixture of methane and ethylene or methane and ethane. The refrigeration composition may be constant throughout the system or separators may be used to divide the refrigerant into a methane-rich binary refrigerant and an ethylene- or ethane-rich binary refrigerant.</p>
申请公布号
EP1045820(B1)
申请公布日期
2002.07.24
申请号
EP19980964969
申请日期
1998.12.29
申请人
ABB LUMMUS GLOBAL INC.
发明人
SUMNER, CHARLES;WEI, VITUS, TUAN;CRAWFORD, JOHN, J.;STANLEY, STEPHEN, J.;MCNAB, RICHARD, J.