Use of polysulfide treated molecular sieves to remove mercury from liquefied hydrocarbons

Patent · Tue Oct 31 04:00:00 EST 1989

OSTI ID:7229959

Audeh, C A

This patent describes a process for removing mercury from a liquid hydrocarbon stream or dry gaseous stream. It comprises: drying a molecular sieve at a temperature of between 350 and 450{degrees}C. in an anhydrous nonreactive atmosphere: contacting the molecular sieve with an aqueous solution of water soluble alkali polysulfide until the molecular sieve is saturated with the aqueous solution; drying the saturated molecular sieve at a temperature between about 10 and about 75{degrees}C. and a pressure of less than about 500 millimeters of mercury to deposit the water soluble alkali polysulfide onto the molecular sieve without decomposing the waste soluble alkali polysulfide; contacting the gaseous or liquid hydrocarbon stream with the dried molecular sieve and recovering a gaseous or liquid hydrocarbon stream depleted of mercury.

• Assignee: Mobil Oil Corp., New York, NY
• Patent Number(s): US 4877515; A
• Application Number: PPN: US 7-102958A
• OSTI ID: 7229959
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
ADSORBENTS
ALKALI METAL COMPOUNDS
AQUEOUS SOLUTIONS
CHALCOGENIDES
CHEMICAL COMPOSITION
DEMETALLIZATION
DISPERSIONS
ELEMENTS
HYDROCARBONS
MERCURY
METALS
MIXTURES
MOLECULAR SIEVES
ORGANIC COMPOUNDS
REMOVAL
SEPARATION PROCESSES
SOLUTIONS
SULFIDES
SULFUR COMPOUNDS