Shell Oil Comapny

Zeigler Coal Holding Company

James A Salter

Thomas S Dewitz

Hendricus Arien Dirkse

Johannes W Van Der Meer

Andrew M Scott

Maarten M Geuze

Gerrit G Rosenbrand

Thomas R Schmidt

Rudi Everts

Charles M Arbore

David Matthew Brown

James J McCusker

Johannes A Van Broekhoven

Leonardus Petrus

Teunis Terlouw

Steven Paul Giles

Gunter K Eckstein

Mark A Siddoway

Philip J De Smedt

Alex Frederik Woldhuis

James P Frederick

Frederik M Duysings

Marinus Marcus Wilhelmus Johannes Miggelbrink

Edward C Sumner, Iv

Robert P Deschner

Johannnes W Van Der Meer

Henricus C Venselaar

Charles Phillip Brundrett

Frederick M Duysings

There is provided a process for trapping particulate matter in a gas stream exiting a combustion equipment comprising providing a combustion equipment with one or more exits for exhaust gases, each exit connected to one or more ducts, and placing at least one particulate trap in each duct, wherein the particulate trap is removable and/or replaceable while the combustion equipment is online.

Process for trapping particulate matter in hot gas and trap therefor

Coal or other fine particles are pelletized by mixing relatively moist particles of them with fine particles of a waste product collected during grain transport and storage and extruding or pelletizing the mixture without extensive heating or steaming.

Pelletizing coal or coke with starch particles

In an improved continuous process for the production of linear alternating polymers of carbon monoxide and at least one ethylenically unsaturated hydrocarbon by contacting the carbon monoxide and hydrocarbon under polymerization conditions in the presence of a reaction diluent and a catalytic quantity of a catalyst composition formed from a compound of palladium, the anion of a strong non-hydrohalogenic acid and a bidentate ligand of phosphorus, an improved start-up procedure is employed in which the catalyst composition concentration in the reaction diluent is increased until steady state polymerization is reached.

Polymerization of CO/olefin with increased catalyst composition

Injection of gas into a bed of solids contained in a hopper is compartmentalized to allow independent control of gas to be vented upward and gas and solids to be discharged.

Compartmented gas injection device

In the process of producing linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon in the presence of a catalyst composition formed from a palladium compound, a bidentate ligand of phosphorus and a non-hydrohalogenic acid having a pKa below 2, lessened reactor fouling is encountered when the amount of acid initially provided is limited with additional acid being provided when polymerization has reached a certain minimum level.

Polymerization of co/olefin with halo monocarboxylic acid and non

Linear alternating polymers of carbon monoxide and at least one ethylenically unsaturated hydrocarbon are produced in a continous flow reactor under conditions that result in a bulk density greater than 0.2 g/ml. The polymers are produced by polymerizing carbon monoxide and one or more olefinically unsaturated compounds in a continuous flow reactor in the presence of a palladium catalyst composition, the polymerization occuring in a liquid diluent in which the polymer product is almost or entirely insoluble, and by maintaining the polymerization at steady state wherein the ratio of the quantity of the polymer product formed per hour to the quantity of the polymer product in the reactor is less than 0.2.

Steady state preparation of high bulk density polymer of carbon monoxide

A process for preparing a polyketone wherein sulfidic sulfur and iron carbonyls present in carbon monoxide are removed therefrom before the carbon monoxide is used as feed for the preparation of novel polyketone polymers as well as shaped articles prepared therefrom.

Preparation of carbon monoxide/olefin copolymer with removal of s/Fe

The present invention is directed to an apparatus and method for equalizing the flow rate of a combustible, particulate solids, such as coal, and gas mixture discharged from a feed vessel apparatus in a uniform manner to a pressurized receiving reactor, such as a gasifier.

Feed hopper design

The present invention is directed to an apparatus and method for minimizing mass flow rate fluctuations of a particulate solid fuel and gas mixture having a coal mass flow rate ranging from about 50-800 kg/m.sup.3 and a corresponding frequency range of about 0.1 to 100 Hertz transported to a reactor.

Feed line-ultrasonic activated gas injection

The present invention is directed to an apparatus and method for controlling mass flow rate of a particulate solids and gas mixture to a reactor. In particular, the fast response of a mass flow rate-indicating device is combined with the longer term accuracies in changes in the total mass from weigh cells to yield rapid and more accurate loss-in-weight measurements than conventional systems.

Pressure compensated weigh system

Feed line-pulsed gas injection

The present invention is directed to an apparatus and method for minimizing mass flow rate fluctuations of a particulate solid fuel and gas mixture having a coal mixture mass flow rate of about 50-800 kg/cubic meter and a corresponding frequency range of about 0.1 to 100 Hertz to a reactor.

Feed line design

A method and apparatus for controlling moisture content of a solid, such as pulverized coal, conveyed to a reactor, such as a gasifier, by controlling the temperature of a gas injected into a pulverizer or dryer based on the moisture content control of the coal transported to the gasifier.

Mill/dryer gas temperature control

An elongated slot dryer is disclosed for drying wet solid particulate material. The slot dryer is constructed in the form of a trench with at least one aperture outlet at the bottom of the trench formed by two non-connecting walls. The wet particulate material (coal) enters through the top and exits through the bottom aperture while countercurrently contacting a drying fluid emitted through perforations situated in a drying fluid access means or conduit located substantially throughout the entire length of the slot dryer. The perforations in the fluid access means or conduit are limited to the bottom one half of the fluid access means relative to the aperture outlet to ensure that drying fluid is passed at first in a downward direction and then gently turns upward to countercurrent contact with the wet descending particles. An underlying conveyor will act to continuously remove the relatively dried particulate material passing through the aperture outlet. The elongated slot dryer provides an extremely efficient use of the drying fluid while eliminating problems of pressure drop throughout the slot trench drying vessel.

Growing community of inventors

Katy, TX, United States of America

James A Salter