198 results about "High value products" patented technology

The present invention relates to methods for processing biomass to selectively yield a variety of hydrocarbon molecules and hydrogen as products, wherein some or all of these products can be further utilized for other biomass processing sub-processes, particularly wherein they lead to the generation of biofuels and/or other high-value products.

A method for separating polar lipids from plant material, in particular, intact algal cells, using an amphipathic solvent set and a hydrophobic solvent set. Some embodiments include dewatering intact algal cells and then extracting polar lipids from the algal cells. The methods provide for single and multistep extraction processes which allow for efficient separation of algal polar lipids from a wet algal biomass while avoiding emulsification of extraction mixtures. These polar lipids are high value products which can be used as surfactants, detergents, and food additives. Neutral lipids remaining in the algal biomass after extraction of polar lipids can be used to generate renewable fuels.

This invention is a process and system for providing hydrogen at a high level of reliability from a gasification system by integrating it with SMR. Carbonaceous feedstock such as petroleum coke or coal or biomass is gasified to co-produce SNG, fuel gas, hydrogen, power and steam in conjunction with hydrogen production through steam methane reforming. Carbon dioxide may also be recovered in this process. The integrated schemes are designed in a way that maximizes the reliability of production of high value products such as hydrogen through gasification and minimizes the impact of high natural gas prices on hydrogen production by SMR.

The invention provides a method for producing light olefins and monocyclic aromatic hydrocarbons from heavy hydrocarbons. The method produces qualified catalytic cracking raw materials through hydrogenation by taking wax oil and residual oil as raw materials, returns light cycle oil and heavy cycle oil which are catalytic cracking by-products to a hydrogenation unit for the catalytic cracking rawmaterials at the same time, hydrogenates the catalytic cracking by-products together with the catalytic cracking raw materials, and then takes the obtained product as the catalytic cracking raw materials to produce light olefins and monocyclic aromatic hydrocarbons. By introducing the residual oil before a second reaction zone of hydrogenation, the method widens the sources of the catalytic cracking raw materials, increases the processing amount of low-value residual oil, and solves the problem of the heat balance of catalytic cracking units. The light and heavy cycle oil of catalytic cracking is introduced into the hydrogenation unit, hydrogenated and then taken as the catalytic cracking raw materials, so that the yield of high-value products of the catalytic cracking units can be increased, and the deactivation of hydrogenation catalysts is delayed.

The invention relates to a method for controlling and optimizing the distillation tower. It controls the distillation tower in dependence on the material balance relation and component balance relation, optimizes the distillation tower by using representative model. Employing the abstraction proportion between the light product on the top of the tower and heavy product in the bottom of the tower (in following, taking the proportion between light and heavy product for abbreviation) as main controlled variable depending on the distillation principle, the material balance and component balance in the distillation tower, controlling the proportion between the light and heavy product, temperature, reflux ratio to realize stable operation by regulating the quantity of reflux and heat load of re-boiler. Simulating the practical course through the technological process simulation software, and training the nerve net model to become the representative model for the course optimization. Optimizing the operation with the representative model by using the analytical data for the raw material and product to realize the product Ka bian optimization, increasing the productivity of product with high value on the condition of guaranteeing the product quality and realizing the device energy saving and consumption reduction.

An acid recovery system used in a hydrolysis operation includes a chromatographic unit to provide initial separation of sugar and acid. The sugar product provided by the chromatographic unit is processed to produce higher value products, such as ethanol. The remaining acid is contaminated by sugar. A nanofiltration unit containing a nanofilter membrane processes the sugar contaminated acid. The acid is allowed to permeate across the nanofilter membrane while sugar is rejected. The permeate is provided to a conventional acid recovery system and recycled for use in the hydrolysis process.

A method for separating polar lipids from plant material, in particular, intact algal cells, using an amphipathic solvent set and a hydrophobic solvent set. Some embodiments include dewatering intact algal cells and then extracting polar lipids from the algal cells. The methods provide for single and multistep extraction processes which allow for efficient separation of algal polar lipids from a wet algal biomass while avoiding emulsification of extraction mixtures. These polar lipids are high value products which can be used as surfactants, detergents, and food additives. Neutral lipids remaining in the algal biomass after extraction of polar lipids can be used to generate renewable fuels.

The invention discloses a heavy raw material hydrotreating-catalytic cracking method to increase propone productivity, which comprises the following steps: choosing light circling oil and or weight circling oil from catalytic cracking unit; adding into hydrogenation reaction zone with heavy cut oil; or adding into two hydrogenation reaction zone with different hydrogenation catalyst to react; getting effluent; cooling; separating; fractionating; getting heavy liquid phase fraction; moving catalytic cracking unit; separating the catalytic cracking reacting product; getting the final product. This invention can dispose cycloalkyl heavy raw material, which propone receiving ratio can increase by 5-7 percent dot.

An integrated process for producing high value products, including for example distillate fuel, from syngas is disclosed. The integrated process of the present invention produces high value products from a Fischer Tropsch with minimal production of low value products, including methane. In a process of the present invention, syngas is reacted under low temperature Fischer-Tropsch reaction conditions to provide a hydrcarbon product stream comprising substantially waxy products. The waxy products are subjected to an olefin-selective paraffin cracking process, preferably in a Paragon reactor to form olefins. The resulting olefins are then subjected to oligomerization conditions to form iso-olefins. In the processes of the present invention, the hydrocarbon product stream from the Fischer Tropsch reaction comprises desirable low levels of methane, preferably below 10%.

The invention discloses a method for metallic arsenic production directly through reducing sulfur-fixed roasting of arsenic sulfide residues. The arsenic sulfide residues produced in the acidic wastewater purifying working procedure of a copper smelting plant serve as a raw material, meanwhile cupric oxide powder and a reducing agent are added, low-temperature reducing sulfur-fixed roasting is conducted after metallurgy calculation and ingredient mixing are conducted, and volatility of arsenic is utilized to enable roasted products to be subjected to vacuum separation in the reducing atmosphere so that the crude metal arsenic and distillation residues can be obtained; and distillation residues are subjected to a reselection technique for separation to obtain multi-metal powder and tailings, and the tailings are subjected to a flotation technique to obtain final residues and copper sulfide concentrates. According to the method for metallic arsenic production directly through reducing sulfur-fixed roasting of the arsenic sulfide residues, efficient arsenic removal of the arsenic sulfide residues can be achieved, harmless high-value products of the arsenic are directly produced, the process is short, energy consumption is low, the process is clean, and the direct recovery rate of the metal arsenic reaches up to 96.45%; and meanwhile, recovery of valuable metal existing in the arsenic sulfide residues is completed, and the cupric oxide powder is recovered in a high-quality copper sulfide concentrate mode finally.

The invention relates to a hydrogenation process for preparing oil products from coal tar which is generated together with exhaust gas synthesized during preparation of methanol from a coke oven and coal gas. Methanol is prepared from coal gas which is the by-product of the coke oven, large amount of relief gas and nitrogen gas during the methanol preparation process, hydrogen is extracted from the relief gas and used as one of the materials for hydrogenation preparing light fule oil from tar, nitrogen is extracted as the material of a coke dry quenching unit, the heat energy generated during the coke dry quenching process is used for generating electric power. With the recycling of coke oven coal gas, the prior exhaust gas which is directly exhausted or burnt is changed into a high-value product, such as electricity, methanol, light fuel oil, advanced charcoal material, etc., at the same time, the object of energy conservation can be realized.

Disclosed is a culture system for the production of algae biomass to obtain lipid, protein and carbohydrate. By integrating heterotrophic processes with a phototrophic process in parallel, this system provides year around production in colder climates. By integrating heterotrophic processes with a phototrophic process in series, this system creates a two-stage, separated mixed-trophic algal process that uses organic carbon and nutrients for the production of seed in the heterotrophic process, followed by release of cultured seed in large-scale phototrophic culture for cell biomass accumulation. Organic carbon source including waste materials can be used to feed the heterotrophic process. The production capacity ratio between the heterotrophic and the phototrophic processes can be adjusted according to season and according to the availability of related resources. The systems are used for producing and harvesting an algal biofuel feedstock as well as other potential high-value products. The sequence and approach enhances utilization of carbon and nutrient waste-streams, provides an effective method for controlling contamination, adds flexibility in regard to production and type of available products, and supplies greater economic viability due to maximized use of available growth surface areas.

The present invention relates to methods of processing lignocellulosic material to obtain hemicellulose sugars, cellulose sugars, lignin, cellulose and other high-value products. Also provided are hemicellulose sugars, cellulose sugars, lignin, cellulose, and other high-value products.

A process for upgrading pyrolysis tar to higher value products. More particularly, this invention relates to the upgrading of steam cracker tar using relatively small amounts of a transition metal sulfide-containing particulate catalyst dispersed throughout the tar chargestock and in the presence of hydrogen, at relatively mild hydroconversion conditions.

Disclosed is a culture system for the production of algae biomass to obtain lipid, protein and carbohydrate. By integrating heterotrophic processes with a phototrophic process in parallel, this system provides year around production in colder climates. By integrating heterotrophic processes with a phototrophic process in series, this system creates a two-stage, separated mixed- trophic algal process that uses organic carbon and nutrients for the production of seed in the heterotrophic process, followed by release of cultured seed in large-scale phototrophic culture for cell biomass accumulation. Organic carbon source including waste materials can be used to feed the heterotrophic process. The production capacity ratio between the heterotrophic and the phototrophic processes can be adjusted according to season and according to the availability of related resources. The systems are used for producing and harvesting an algal biofuel feedstock as well as other potential high-value products. The sequence and approach enhances utilization of carbon and nutrient waste-streams, provides an effective method for controlling contamination, adds flexibility in regard to production and type of available products, and supplies greater economic viability due to maximized use of available growth surface areas.

A method for separating neutral lipids from plant material, in particular, intact algal cells, using an amphipathic solvent set and a hydrophobic solvent set. Some embodiments include dewatering intact algal cells and then extracting neutral lipids from the algal cells. The methods provide for single and multistep extraction processes which allow for efficient separation of algal neutral lipids from a wet algal biomass while avoiding emulsification of extraction mixtures. These neutral lipids are high value products which can be used to generate renewable fuels.

The invention discloses a method for manufacturing a carbon molecular sieve with a plant nutshell, which sequentially comprises the following steps: a, crushing the plant nutshell into powdery material; b, drying and grinding the powdery material to obtain micro-powdery material; c, mixing and kneading the micro-powdery material with adhesives in a kneader; d, placing the kneaded material into a bar extruding machine for formation; e, placing the formed material into a converter for carbonization; and f, depositing the carbonized material with carbon to obtain a finished carbon molecular sieve. By adopting the method, the problem of environment pollution caused by the carbon molecular sieve process can be solved effectively, and the environment protection can be facilitated. Meanwhile, the finished carbon molecular sieve is manufactured with the plant nutshell sequentially via crushing, drying, grinding to produce the micro powder, placing of the micro powder along with the adhesives into the kneader, formation, carbonization and surface carbon deposition to obtain the finished carbon molecular sieve. Waste is fully utilized to manufacture high-value products, the manufacturing cost of the carbon molecular sieve is reduced, the process is simple, and industrialization can be realized easily.

Systems, methods, and computer program products for managing product inventory, and particularly for managing inventories.

The invention provides a method for recycling metal in waste lithium iron phosphate batteries. The method comprises the following steps: roasting and sorting the waste lithium iron phosphate batteries to obtain lithium-containing positive electrode powder; carrying out enhanced leaching on the lithium-containing powder in a mixed solution of ammonium salt and/or ammonia; converting divalent iron into trivalent iron in an oxidative environment and forming sediment, so as to obtain a lithium-containing solution; and filtering the lithium-containing solution and preparing a high-purity lithium product, so as to obtain high-value products including lithium hydroxide or lithium carbonate and the like. Compared with a traditional wet-process acid leaching process, an acidic leaching agent is not used any more so that a condition that a lot of high-salt wastewater is generated is avoided; the lithium element is selectively leached in an enhanced leaching manner; the leaching efficiency is high and the consumption amount of a leaching solution is small; a high-purity lithium-containing solution can be obtained; finally, the purity of the obtained lithium products is high and a flow is short; chemical agents have a wide source and technological conditions are simple; the lithium element can be selectively leached in the enhanced leaching manner and the high-purity lithium products are harvested; and the recycling benefits of the waste lithium iron phosphate batteries are improved and the method has a good industrial application prospect.

The invention relates to a method for producing benzene, toluene and xylene from a poor-quality diesel oil raw material. According to the method, a poor-quality diesel oil raw material reacts in a hydrorefining zone, a hydrocracking reaction zone I and a hydrocracking reaction zone II to generate a stream being rich in benzene, toluene and xylene, the reaction products of the hydrocracking reaction zone I are subjected to fractionation to separate so as to obtain the light gasoline distillate, the heavy gasoline distillate, the middle distillate and the tail gasoline distillate, thiophene, mercaptan and the like are removed from the heavy gasoline through a desulfurization reaction zone, and separation is performed to obtain the high added value products such as benzene, toluene and xylene, raffinate oil, and the like. With the method of the present invention, the poor-quality diesel oil raw material can be effectively converted into the high added value products such as benzene, toluene, xylene and the like while the partial light gasoline and the low sulfur diesel oil blending component can be concurrently produced.