Patent classifications
B29B2017/0424
Polymers, articles, and chemicals made from densified textile derived syngas
Densified textile aggregates are co-fed with a fuel into a partial oxidation gasifier. High solids concentrations in the feedstock composition can be obtained without significant impact on the feedstock composition stability and pumpability. A consistent quality of densified textile derived syngas can be continuously produced, including generation of carbon dioxide and a carbon monoxide/hydrogen ratio while stably operating the gasifier and avoiding the high tar generation of fluidized bed or fixed bed waste gasifiers and without impacting the operations of the gasifier. The densified textile derived syngas quality, composition, and throughput are suitable for produce a wide range of chemicals and polymers, including methanol, acetic acid, methyl acetate, acetic anhydride, and cellulose esters through a variety of reaction schemes in which at least a portion of the chemical or polymer originates with densified textile derived syngas.
Used automobile tires as loss circulation material
An automobile tire that is unsuitable to carry an automobile is obtained. Tire chips are formed from the obtained automobile tire. The tire chips are mixed with a quantity of wellbore carrier fluid to form a mixture. The mixture is used as loss circulation material during a wellbore drilling operation.
USED AUTOMOBILE TIRES AS LOSS CIRCULATION MATERIAL
An automobile tire that is unsuitable to carry an automobile is obtained. Tire chips are formed from the obtained automobile tire. The tire chips are mixed with a quantity of wellbore carrier fluid to form a mixture. The mixture is used as loss circulation material during a wellbore drilling operation.
POLYMERS, ARTICLES, AND CHEMICALS MADE FROM DENSIFIED TEXTILE DERIVED SYNGAS
Densified textile aggregates are co-fed with a fuel into a partial oxidation gasifier. High solids concentrations in the feedstock composition can be obtained without significant impact on the feedstock composition stability and pumpability. A consistent quality of densified textile derived syngas can be continuously produced, including generation of carbon dioxide and a carbon monoxide/hydrogen ratio while stably operating the gasifier and avoiding the high tar generation of fluidized bed or fixed bed waste gasifiers and without impacting the operations of the gasifier. The densified textile derived syngas quality, composition, and throughput are suitable for produce a wide range of chemicals and polymers, including methanol, acetic acid, methyl acetate, acetic anhydride, and cellulose esters through a variety of reaction schemes in which at least a portion of the chemical or polymer originates with densified textile derived syngas.
METHOD FOR RECYCLING POLYMER COMPOSITE CONTAINING POLYURETHANE WASTE AND POLYETHYLENE TEREPHTHALATE WASTE
A method for recycling a polymer composite containing polyurethane waste and polyethylene terephthalate waste includes the steps of: (a) mixing a polymer composite and a first preheated glycolysis agent to obtain a premix, the polymer composite containing polyurethane waste and polyethylene terephthalate waste; (b) heating the premix to a temperature ranging from 180? C. to 240? C. so as to obtain a liquefied premix; (c) subjecting the liquefied premix to a degradation process so as to obtain a polyol mixture; and (d) subjecting the polyol mixture and a second glycolysis agent to a heat transfer process, so as to obtain a cooled polyol mixture, and a second preheated glycolysis agent.
Processes and structures for recycling carpet and products of such processes
Methods and equipment for the recycling of carpet are disclosed that produce a clean fiber product suitable for industrial use. The methods allow the recovery of face fiber material, for example a polyester, polyolefin, or a polyamide, from carpets that includes a face fiber material, a polypropylene backing material, and an adhesive, and include the steps of mechanically impacting the carpet to break the bonds between the adhesive and the fibrous components, treating the fibrous components to remove adhesive granules from the fibrous components, and optionally separating the polypropylene backing from the face fiber. A clean adhesive/calcium carbonate product can also be produced from this process.