HYVAHL

Mariette, L., A. Billon and T. Descourieres (1988), Hyvahl process for high conversion of resids . Japanese Petroleum Institute Conference, Tokyo. 

HYVAHL A hydrotreating process for upgrading petroleum residues. Developed by the Institut Frangais du Petrole. Three units were operating in 1996. See also TERVAHL. 

HYVAHL F An improved version of HYVAHL Hydrocarbon Process., 1994, 73(11), 130. 

HYVAHL S An improved version of HYVAHL which uses two reactors containing two different catalysts, operated in a swing mode. 

TERVAHL A visbreaking process, developed by the Institut Frangais du Petrole for ASVAHL and commercialized in a joint venture between Societe Nationale Elf Aquitane, Institut Frangais du Petrole, and Total Oil Company. One plant was operating in France in 1988. See also HYVAHL. 

The Hyvahl F process is used to hydrotreat atmospheric and vacuum residua to convert the feedstock to naphtha and middle distillates (Hydrocarbon Processing, 1998). 

Hyvahl F process a process for hydroconverting heavy feedstocks to naphtha and middle distillates using a dual catalyst system and a fixed bed swing-reactor. 

ASVAHL [Association pour la VAlorisation des Huilles Lourdes] Not a single process, but an association formed in 1980 by the three French companies — Total, Elf, and IFP — to develop processes for treating heavy oils. The processes they developed were HYVAHL, SOLVAHL, and TERVAHL. These processes are now licensed by Axens. 

TERVAHL A visbreaking process, developed by ASVAHL. One plant was operating in France in 1988. See also HYVAHL. 

M.E. Morrison, G. Stevens, A. Billon, A. Hennico and J.P. Peries, Hyvahl-Solvahl key processes for upgrading of residues, NPRA annual meeting, paper AM 94-25. 

Elf, IFP and Total formed the ASVAHL association for heavy oil upgrading in early 1980 with the objective of developing processes for residue conversion. Several schemes and processes were experimented at a 20,000 t/year scale. Among these processes [Le Page et al, 1990 Billon et al, 1991 Euzen, 1991], a dual fixed bed version (HYVAHL) and a countercurrent moving bed system have been developed (see Figure 4). 

Table 4. Hydrotreating of a Vacuum Residue (Iranian Heavy) HYVAHL Process Data taken from [Billon et al, 1991]...

Billon,A., Peries,J.P., Espeillac,M. and Des Courieres,T., (1991), Hyvahl F versus Hyvahl M, swing reactor or moving bed . NPRA Meeting, USA, 1991. 

HySCOP A catalytic process for making a sweet, extra-light synthetic crude oil from heavy crude oil by hydroconversion. It combines Axens HYVAHL hydroprocessing technology with Idemitsu s hydroconversion catalyst technology. The process was designed by Axens and licensed to Idemitsu Kosan in 2007. 

Hyvahl-M. Employs countercurrent moving-bed reactors and is recommended for feeds containing high amount of metals and asphaltenes. It requires special equipment and procedures for safe and effective catalyst... 

Morrison, M.E., Billon, A., Stephens, G., Hennico, A., Peries, J.P. 1994. Hyvahl-Solvahl— Key processes for upgrading of residues. In NPRA Annual Meeting, San Antonio, TX, paper AM-94-25 24P, March 20-22. 

---