Abstract: A process is provided for removing sulfur compounds, such as hydrogen sulfide, sulfur oxides and thiols, out of fluids, such as natural gas or natural gas liquids, by contacting the fluid with a physical mixture of iron oxide, zinc oxide or mixtures thereof and an activator, such as platinum oxide, gold oxide, silver oxide, copper oxide, copper metal, copper carbonate, copper alloy, cadmium oxide, nickel oxide, palladium oxide, lead oxide, mercury oxide, tin oxide and cobalt oxide, preferably copper oxide wherein the activator is present in an amount equal to 0.125% by wt. to 5% by wt. of the total physical mixture. The contacting is conducted at a temperature of 300° C. or less.
Abstract: The present invention relates to a bound metal oxide particle comprised of metal oxide and a binder, with the binder preferably being a starch solution. The present invention also relates to a method for forming a bound metal oxide particle, with the preferred method including extruding and pelletizing a metal oxide and binder composition to form pelletized metal oxide particles.
Type:
Grant
Filed:
August 24, 1999
Date of Patent:
May 8, 2001
Assignee:
The SulfaTreat Company
Inventors:
Delbert C. Scranton, Jr., Alvin Samuels
Abstract: The present invention relates to an activated metal oxide and methods for removing sulfur compounds from fluids, whereby the activated metal oxide includes an amount of metal oxide and an amount of ethoxylated fatty amine, with the ethoxylated fatty amine increasing the rate of reactivity between the metal oxide and the sulfur compounds, which include hydrogen sulfide, carbonyl sulfide, mercaptans, and other organic sulfides. The ethoxylated tallow amines include ethoxylated tallow amine, ethoxylated cocoa amine, ethoxylated oleic amine, ethoxylated soya amine, ethoxylated palmatic amine, ethoxylated steric amine, and combinations thereof. The method involves activating the metal oxide, preferably iron oxide or zinc oxide, with an amount of ethoxylated fatty amine so that when fluids, such as water or liquid hydrocarbons, contact the metal oxide the sulfur compounds are removed.
Abstract: The present invention relates to the use of metal oxide particles held on carrier particles and moistened with a hygroscopic moistening agent, preferably glycol, with the moistened metal oxide particles used in a system designed to remove sulfur from dehydrated and water under-saturated gas compounds.
Abstract: A method is provided for removing carbonyl sulfide out of a H.sub.2 O-containing fluid stream, such as petrochemical vent gas, air, carbon dioxide, nitrogen and hydrocarbons, by determining how much carbon monoxide is present in the fluid stream; adding carbon monoxide to the fluid stream to obtain a carbon monoxide to carbonyl sulfide volume ratio of at least 1:1 and to also convert the carbonyl sulfide into hydrogen sulfide and carbon dioxide, and passing the hydrogen sulfide containing fluid through a hydrogen sulfide removal system, so as to obtain a fluid substantially free from carbonyl sulfide and hydrogen sulfide.
Abstract: The present invention relates to the use of a non-aqueous liquid such as phenols, glycols, aromatic hydrocarbons, diesel fuel, kerosene, and mixtures thereof as a moistening agent in a packed bed process, wherein the packed bed contains a composition for removing sulfur compounds from fluid streams, the composition containing a carrier composition, an iron oxide composition, and a non-aqueous liquid moistening agent. The non-aqueous liquid moistening agent is used in place of water and thus avoids the problems associated with using water as a moistening agent.
Abstract: In ridding fluids, including hydrocarbon fluids, both gaseous and liquid, of sulfur compounds including hydrogen sulfide, oxides of sulfur, and thiols, the present invention uses a small quantity of an activator, generally a noble metal oxide, preferable a copper oxide, along with a known oxide product such as iron oxide to thoroughly remove sulfur contaminants in a short amount of time. The activator allows for the use of smaller reactor vessels and the production of hydrocarbon fluids substantially free of sulfur products.