Method of hydrodesulfurizing heavy petroleum fraction in the ini

Method of hydrorefining asphaltenic hydrocarbon feedstocks

Method of preparing a catalyst for use in the hydrotreating...

Method of preparing low-sulphur aliphatic compounds

Method of purifying crude petroleum and primary refining product

Method of reducing sulfur in hydrocarbon feedstock using a...

Method of refining crude oil

Method of refining heavy oil and refining apparatus

Method of removing contaminant from a feedstock stream

Method of removing contaminant from feedstock streams

Method of removing elemental sulfur from hydrocarbon fuel

Method of removing sulfur compounds from hydrocarbon streams

Method of removing sulfur compounds from sour crude oil and sour

Method of removing sulfur-containing impurities from hydrocarbon

Method of scavenging hydrogen sulfide from hydrocarbons

Method of scavenging hydrogen sulfide from hydrocarbons

Method of treating sour gas and liquid hydrocarbon

Method of treating sour gas and liquid hydrocarbon

Methods and compositions for desulfurization of hydrocarbon...

Methods for reducing sulfur and carbon in petroleum refining...