Abstract

The invention relates to a method for producing an odor-free HTC coal (1), at least comprising the following steps: a) providing a biomass (2); b) performing a hydrothermal carbonization (3) in order to produce a carbon sludge (4), the carbon sludge (4) comprising HTC coal (1) and HTC process water (5); c) separating HTC coal (1) and HTC process water (5) by a mechanical dewatering process; d) heating the HTC coal (1) to a temperature of at least 150 degrees Celsius in order to remove highly volatile carbon compounds (6).

IPC Classes  ?

• C10L 5/44 - Solid fuels essentially based on materials of non-mineral origin on vegetable substances
• C05F 7/00 - Fertilisers from waste water, sewage sludge, sea slime, ooze or similar masses
• C09K 17/52 - Mulches
• C10L 9/08 - Treating solid fuels to improve their combustion by heat treatment, e.g. calcining

Goods & Services

Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry; unprocessed artificial resins, unprocessed plastics; manures; fire extinguishing compositions; tempering and soldering preparations; chemical substances for preserving foodstuffs; tanning substances; adhesives used in industry. Industrial oils and greases; lubricants; dust absorbing, wetting and binding compositions; fuels (including motor spirits) and illuminants; candles and wicks for lighting. Machines for processing biomass for industrial and municipal customers; machine tools; motors and engines (except for land vehicles); machine coupling and transmission components (except for land vehicles).

Abstract

The present invention relates to the field of heat treatment of a product to be dehydrated, such as sludge from a waste water treatment process. The present invention relates more particularly to a method and to a facility for drying such a product, making it possible to implement a hydrothermal carbonization operation on reactor 1 followed by a filtering and drying operation, preferably on a heating filter press 6. In order to dry said product in the heating filter press 6, a heat-transfer fluid from a heat exchanger 2 is made to flow in said heating filter press. The heat exchanger 2 is arranged so as to transfer, to the heat-transfer fluid, at least some of the heat contained in the product to be dehydrated that is output from the reactor 1.

IPC Classes  ?

• F26B 7/00 - Drying solid materials or objects by processes using a combination of processes not covered by a single one of groups or
• F26B 1/00 - Preliminary treatment of solid materials or objects to facilitate drying
• C01B 32/05 - Preparation or purification of carbon not covered by groups , , ,
• C10L 5/44 - Solid fuels essentially based on materials of non-mineral origin on vegetable substances
• C10L 5/46 - Solid fuels essentially based on materials of non-mineral origin on sewage, house, or town refuse
• F26B 5/14 - Drying solid materials or objects by processes not involving the application of heat by applying pressure, e.g. wringingDrying solid materials or objects by processes not involving the application of heat by brushingDrying solid materials or objects by processes not involving the application of heat by wiping
• C02F 11/122 - Treatment of sludgeDevices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
• C02F 11/18 - Treatment of sludgeDevices therefor by thermal conditioning
• F26B 3/02 - Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air

Abstract

Disclosed is a method for heating a biomass moving along an industrial treatment line including an inlet (1) for the incoming biomass, a heating unit (4), and a treatment station (5). A fraction of the biomass heated by the heating unit (4) is returned along a return branch (R) to a mixing station (2) upstream of the heating unit (4) so as to form, together with the incoming biomass, a mixture having a temperature above the temperature of the incoming biomass, the heated biomass fraction being removed at an outlet (51) of the treatment station (5).

IPC Classes  ?

• C10B 53/02 - Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of cellulose-containing material
• C10B 1/02 - Stationary retorts
• C10B 47/00 - Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion
• C10B 57/06 - Other carbonising or coking processesFeatures of destructive distillation processes in general using charges of special composition containing additives
• C10L 9/08 - Treating solid fuels to improve their combustion by heat treatment, e.g. calcining

Abstract

The invention relates to a method for hydrothermal carbonization and digestion of sewage sludge, wherein the device for hydrothermal carbonization and the device for digestion are flown through by the sewage sludge in alternating order and/or wherein the sewage sludge is first supplied to a hydrothermal carbonization and subsequently to the digestion.

IPC Classes  ?

• C10L 5/46 - Solid fuels essentially based on materials of non-mineral origin on sewage, house, or town refuse
• C10L 9/08 - Treating solid fuels to improve their combustion by heat treatment, e.g. calcining
• C02F 11/04 - Anaerobic treatmentProduction of methane by such processes
• C02F 11/18 - Treatment of sludgeDevices therefor by thermal conditioning

Abstract

A method and facility for the hydrothermal carbonization of pasty products or waste, or sewage sludge, in a pressurized reactor heated to carbonization temperature T0. Before entering the reactor, the products undergo: pressurization, and preheating in an exchanger, by a thermal fluid flowing in a closed loop, and receiving heat from products exiting the reactor; the thermal fluid is heated in the loop by an external heat source, downstream from the exchange with the products exiting the reactor, and upstream from the preheating of the products entering the reactor, and the temperature of the product to be treated, preheated by the thermal fluid, when it enters the reactor, is between the carbonization temperature T0 and T0-100° C. The product to be treated flows in at least one tube, where in at least one location therein, liquid is injected to create a liquid ring against the inner wall, and reduce pressure drops.

IPC Classes  ?

• C02F 1/00 - Treatment of water, waste water, or sewage
• C02F 1/66 - Treatment of water, waste water, or sewage by neutralisationTreatment of water, waste water, or sewage pH adjustment
• C02F 11/00 - Treatment of sludgeDevices therefor
• C02F 11/10 - Treatment of sludgeDevices therefor by pyrolysis
• C02F 11/12 - Treatment of sludgeDevices therefor by de-watering, drying or thickening
• F23G 5/00 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of waste or low-grade fuels
• F23G 5/02 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of waste or low-grade fuels including pretreatment
• F23G 5/027 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of waste or low-grade fuels including pretreatment pyrolising or gasifying
• F23G 7/00 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of specific waste or low grade fuels, e.g. chemicals

Abstract

The invention relates to a method for ultra-dehydrating thickened or pasty biomass products, in particular sludge from wastewater treatment plants, according to which the products, in particular products having a dryness of 4% to 25%, are subjected to the following steps: hydrothermal carbonization treatment, including pressurization (1, 2) and thermal conditioning (30) for a duration in a closed reactor (4); followed by dehydration of the products by a ram press (12), obtaining a dryness of more than 50%; the temperature of the product upstream from the ram press dehydration being regulated by cooling between 40° C. and 90° C., advantageously to around 70° C., in order to optimize the filterability in the piston press; the steps of the method being performed in a confined space making it possible to prevent the release of smells into the atmosphere.

IPC Classes  ?

• C02F 11/10 - Treatment of sludgeDevices therefor by pyrolysis
• C02F 11/12 - Treatment of sludgeDevices therefor by de-watering, drying or thickening
• C02F 1/00 - Treatment of water, waste water, or sewage
• C02F 9/00 - Multistage treatment of water, waste water or sewage
• C10L 5/44 - Solid fuels essentially based on materials of non-mineral origin on vegetable substances

Goods & Services

Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry; unprocessed artificial resins, unprocessed plastics; manures; fire extinguishing compositions; tempering and soldering preparations; chemical substances for preserving foodstuffs; tanning substances; adhesives used in industry. Industrial oils and greases; lubricants; dust absorbing, wetting and binding compositions; fuels (including motor spirit) and illuminants; candles and wicks for lighting. Machines for processing biomass for industrial and municipal customers; machine tools; motors and engines (except for land vehicles); machine coupling and transmission components (except for land vehicles); agricultural implements (not hand operated); incubators for eggs.

Abstract

The invention relates to a method for producing additives for improving the fertility of soils, in which biomass is treated by means of hydrothermal carbonization. The invention further relates to a device for implementing the method.

IPC Classes  ?

• C05F 11/02 - Other organic fertilisers from peat, brown coal, or similar vegetable deposits
• C05F 17/00 - Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation

Goods & Services

Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry; unprocessed artificial resins, unprocessed plastics; manures; fire extinguishing compositions; tempering and soldering preparations; chemical substances for preserving foodstuffs; tanning substances; adhesives used in industry. Industrial oils and greases; lubricants; dust absorbing, wetting and binding compositions; fuels (including motor spirit) and illuminants; candles and wicks for lighting. Machines for processing biomass for industrial and municipal customers; machine tools; motors and engines (except for land vehicles); machine coupling and transmission components (except for land vehicles).

Goods & Services

Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry; unprocessed artificial resins, unprocessed plastics; manures; fire extinguishing compositions; tempering and soldering preparations; chemical substances for preserving foodstuffs; tanning substances; adhesives used in industry. Industrial oils and greases; lubricants; dust absorbing, wetting and binding compositions; fuels (including motor spirit) and illuminants; candles and wicks for lighting. Machines for processing biomass for industrial and municipal customers; machine tools; motors and engines (except for land vehicles); machine coupling and transmission components (except for land vehicles).