Conocophillips Company

Conoco Inc.

Phillips 66 Company

Other

Alfred E Keller

Sriram Ramani

Joe D Allison

Terry D Pruitt

Nathan A Hatcher

Larry D Swinney

Fred C Veatch

Steven E Lusk

Arthur L Cummings

James C Thompsen

Kerri J Kirkendall

Regina A Severson

Gilbert E Torres

Paul D Stewart

Michael D Smith

Zhen Chen

Richard D Sadok

Devadas Panjala

Samuel Henry Beuke

Rebecca S Shaver

A horizontal sulfur condenser may include an exterior casing with a plurality of condenser tubes arranged longitudinally within the casing, a liquid sulfur reservoir at a longitudinal end within the exterior casing, and an internal baffle that protrudes into the liquid sulfur reservoir from the surface. The lowest of the plurality of condenser tubes is parallel to a wall of the exterior casing. A Claus process gas inlet is proximate a first end of the plurality of condenser tubes, which are arranged horizontally but are positioned vertically above the sulfur reservoir. A liquid sulfur outlet is located at the liquid sulfur surface. The baffle creates multiple chambers above the sulfur reservoir, such as a first chamber defined by the exterior casing and the baffle to receive condensed Claus sulfur in the liquid reservoir, and a second chamber defined by the exterior casing and the baffle to receive degassed liquid sulfur.

Apparatus for in-situ production of low dissolved hydrogen sulfide, degassed, sulfur from Claus sulfur recovery

A vertically oriented sulfur condenser may employ a plurality of condenser tubes arranged longitudinally within an exterior casing, a liquid sulfur reservoir at a longitudinal end of the sulfur condenser, and a condenser tube wall of at least one of the plurality of condenser tubes that protrudes into and below a liquid sulfur reservoir. A catalyst may be located within the liquid sulfur reservoir. A liquid sulfur outlet may be located at the liquid sulfur surface. A Claus process gas inlet may be proximate a first end of the plurality of condenser tubes. A first tube sheet may connect to and seal an end of the plurality of condenser tubes proximate a first end of the plurality of condenser tubes. A second tube sheet may connect to and seals with the plurality of condenser tubes and the exterior casing proximate a second end of the plurality of condenser tubes.

A process of producing degassed liquid sulfur using process gas containing HS to agitate the liquid sulfur being degassed while in contact with a degassing catalyst. Process gas is less costly and less complicated and quickly accomplishes substantial degassing rendering the liquid sulfur much safer in storage and transportation.

Process for degassing condensed sulfur from a Claus sulfur recovery system

A process of producing degassed liquid sulfur using agitation gas to agitate the liquid sulfur being degassed while in contact with a degassing catalyst. Process gas may be blended with the agitation gas wherein the process gas contains HS to accomplish substantial degassing rendering the liquid sulfur much safer in storage and transportation.

Process for degassing condensed sulfur from a claus sulfur recovery system

A process of producing degassed liquid sulfur within a horizontal sulfur condenser may include condensing a portion of a Claus process gas introduced into a condenser tube to produce liquid sulfur; creating first and second chambers above a liquid sulfur reservoir with a baffle; passing the liquid sulfur and the Claus process gas into the first chamber; forcing the Claus process gas from the liquid reservoir within the first chamber to the second chamber; causing a chemical reaction between dissolved hydrogen sulfide in the liquid sulfur and sulfur dioxide from the Claus process gas on a catalyst to produce elemental sulfur and reducing the dissolved HS content of the remaining sulfur; converting hydrogen sulfide by a Claus reaction; decomposing polysulfanes to hydrogen sulfide and sulfur, freeing elemental sulfur from hydrogen sulfide; forcing the Claus process bubbles from the liquid reservoir into the second chamber above the liquid reservoir.

Process for in-situ production of low dissolved hydrogen sulfide, degassed, sulfur from Claus sulfur recovery

A process of producing degassed liquid sulfur within a vertical sulfur condenser may include providing a plurality of condenser tubes within an external casing; submerging exit ends of the plurality of condenser tubes within a liquid reservoir resulting in submerged exit ends of the plurality of condenser tubes; passing the Claus process gas into an inlet end of the plurality of condenser tubes; condensing the Claus process gas within the condenser tubes to produce condensed Claus process gas within the plurality of condenser tubes; and collecting the condensed Claus process gas in the liquid reservoir upon exiting of the condensed Claus process gas at an exit end of the plurality of condenser tubes. The process may further include converting hydrogen sulfide by the Claus reaction 2HS+SO3/xSx+2HO, and decomposing polysulfanes to hydrogen sulfide and sulfur, wherein elemental sulfur is freed from hydrogen sulfide.

Process for in-situ production of low dissolved hydrogen sulfide, degassed, sulfur from claus sulfur recovery

A process of producing degassed liquid sulfur using process gas containing H2S to agitate the liquid sulfur being degassed while in contact with a degassing catalyst. Process gas is less costly and less complicated and quickly accomplishes substantial degassing rendering the liquid sulfur much safer in storage and transportation.

A process is disclosed for removing hydrogen sulfide from liquid sulfur including: passing a liquid sulfur feed comprising liquid sulfur and hydrogen sulfide to a vaporizer; vaporizing at least a portion of the liquid sulfur feed in the vaporizer to thereby form a first vapor stream comprising gaseous sulfur and gaseous hydrogen sulfide; partially condensing the first vapor stream in a condenser to form a liquid product stream comprising liquid sulfur and a second vapor stream comprising hydrogen sulfide; wherein the liquid product stream has a lower concentration of hydrogen sulfide than the liquid sulfur feed.

Sulfur degassing process

Novel sulfur recovery plants, and processes utilizing these plants are disclosed. These apparatuses eliminate the use of a condenser between the waste heat boiler and first Claus catalytic reactors, and also eliminate the use of reheaters in between Claus catalytic reactors.

Sulfur recovery plant

A compact sulfur recovery system is disclosed which includes an upflow orientation for the gases through a primary structure including a catalytic partial oxidation reaction zone, a first temperature-control zone, a first Claus catalytic reaction zone, a second temperature-control zone, a first liquid sulfur outlet, and a first effluent gas outlet. The upward flow of the gases puts the hottest gases in contact with the tubes and tube sheet in the waste heat boiler where there is greater confidence in having liquid water in most continuous therewith.

Compact sulfur recovery plant and process

A method for removing organic sulfur compounds from a vent gas is described. Also described is an apparatus for absorbing organic sulfur compounds from vent gas.

Process for removing sulfides

Claus sulfur recovery plants that include one or more single-stage or multi-stage compact tubular Claus catalytic reactor-heat exchanger units are disclosed. In some instances, these new or improved Claus plants additionally include one or more compact heat exchanger containing cooling tubes that are filled with a heat transfer enhancement medium. The new compact tubular Claus catalytic reactor-heat exchanger units and HTEM-containing heat exchangers are also disclosed. A process for recovering sulfur from a hydrogen sulfide-containing gas stream, employing the new tubular Claus catalytic reactor-heat exchanger unit, and in some instances a HTEM-containing heat exchanger, are also disclosed.

Increased capacity sulfur recovery plant and process for recovering elemental sulfur

The disclosed sulfur recovery system and process avoid some of the operational problems of conventional Claus plants and processes by replacing the reaction burner and furnace tube of a conventional Claus plant with a more efficient short contact time catalytic reactor assembly containing a SPOC&#x2122; catalyst that operates efficiently at elevated temperatures. Such Claus plant modification also reduces or avoids the negative effects of hydrocarbons, COand ammonia in Claus sulfur plant feeds, and permits efficient processing of dilute to concentrated HS feeds. The disclosed modification makes possible the expansion of Claus plant capacity at lower cost.

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A process for purifying a light hydrocarbon stream containing HS is disclosed in which the selective catalytic partial oxidation of the HS component is carried out while the hydrocarbon components slip through substantially unconverted. A catalyst that favors the partial oxidation of HS over conversion of the hydrocarbon component of a gaseous HS-light hydrocarbon mixture is employed. Apparatus for selectively cleaning up light hydrocarbon streams containing low concentrations (e.g., less than 25 vol. %), and apparatus for selectively cleaning up light hydrocarbon streams having higher concentrations (e.g., greater than 25 vol. %) of HS are also disclosed.

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Ponca City, OK, United States of America

Alfred E Keller