Conoco Inc.

Conco Inc.

Heeyoung Yoon

Robert G Jackson

Robert M Statnick

Gerald D Rutledge

Francis P Burke

An improved process for reducing the sulfur content of a flue gas derived from combination of a sulfur-containing fuel by inserting a dry sulfur sorbent material into the flue gas, then humidifying the sorbent-containing flue gas to enhance sulfur removal. The humidified flue gas is then subjected to electrostatic precipitation separation of solids, the first separated portion containing the highest unreacted sorbent values, which values are reinjected into the flue gas.

Recycled sorbent flue gas desulfurization

An aqueous solution of an alkaline earth salt of a low molecular weight carboxylic acid, such as calcium formate, is sprayed into a sulfur dioxide containing flue gas upstream of a solids particulate separator in amount sufficient to produce a flue gas temperature at least about 10.degree. C. above its dew point at the separator.

Flue gas desulfurization process

Flue gas is desulfurized by mixing into the combustion zone a finely divided sorbent such as calcium carbonate and, downstream of the mixing point, reactivating the sorbent by spraying the gaseous suspension with an aqueous solution of solubilizing agent such as a deliquescent compound or a strongly ionizing inorganic salt.

Limestone is calcined by being suspended in hot gas produced by combustion of a low-carbon fuel to produce a quicklime of high surface area, which in one embodiment is used for flue gas desulfurization.

Method for producing reactive lime and reducing sulfur dioxide

Flue gas is desulfurized by mixing into it at a temperature between about 120.degree. and about 230.degree. C. a finely divided sorbent such as calcium hydroxide which has been reacted with an aqueous solution of solubilizing agent such as a deliquescent compound or a strongly ionizing inorganic salt and, immediately downstream of the mixing point, spraying water into the gaseous suspension. In one embodiment a portion of the solids separated from the flue gas are recycled for reuse as sorbent.

Flue gases from two or more boilers are treated for reduction of their sulfur dioxide content by injecting as sorbent fine limestone or dolomite into one of the boilers, recovering a mixture of spent and calcined sorbent from the resulting flue gas, hydrating the resulting mixture to provide a dry slaked sorbent, and adding the dry slaked sorbent to sulfur-containing flue gas from a second boiler at a temperature of about 120.degree. to 230.degree. C.

Desulfurization of flue gas from multiple boilers

Flue gas is desulfurized by mixing into it at a temperature between about 120.degree. and about 230.degree. C. a finely divided sorbent such as calcium hydroxide and, immediately downstream of the mixing point, spraying the gaseous suspension with an aqueous solution of solubilizing agent such as a deliquescent compound or a strongly ionizing inorganic salt. In one embodiment, make-up sorbent is derived from injection of limestone or dolomite into the combustion zone, and in another embodiment a portion of the solids separated from the flue gas is reactivated for reuse as sorbent.

Alcohol dissociation reactor for motor vehicles

A method of cold starting an internal combustion engine operated on atomized liquid fuel after start up comprising the steps of:

Cold start method with start-up gaseous fuel generation system for

A method of fuel treatment and distribution for an internal combustion engine including the sequence of steps as follows:

Constant air feed alcohol dissociation process for automobiles

A method of methyl alcohol treatment and distribution for an automobile internal combustion engine including the sequence of steps as follows:

Alcohol dissociation process for automobiles

A method of fuel treatment and distribution for an automobile internal combustion engine comprising the steps as follows:

Alcohol dissociation and waste heat recovery process for automobiles

A method of fuel treatment and distribution for an internal combustion engine including the steps as follows:

Internal combustion engine fuel treatment including in sequence the steps as follows:

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McMurray, PA, United States of America

Heeyoung Yoon