42results about How to "Maintain normal production" patented technology

A process for the alkylation of a benzene-containing refinery stream such as reformate with light refinery olefins which is capable of achieving high benzene conversion levels operates in a fixed bed of an MWW zeolite catalyst, preferably MCM-22, in single pass mode in the liquid phase at a relatively low to moderate temperatures with pressure maintained at a value adequate to ensure subcritical operation. High levels of benzene conversion with conversions of at least 90% and higher, e.g. 92% or 95% or even higher are achievable. A high octane product is produced, comprising mono-, di- and tri-alkylbenzenes with lesser levels of the tetra-substituted products. By operating with staged olefin injection, the end point of the alkylation product can be maintained at a low value while, at the same time, achieving high levels of benzene and olefin conversion.

Manufacturing methods and plants for carrying out methods of manufacturing cement clinker including diverting gases from a separation cyclone for a calcined cement material. The diverted gases are cooled to a temperature of 850° C. or less by introducing raw cement materials into the diverted gas stream.

A fail-operational engine is provided. The inventive engine is a single engine which continues to operate at partial power after a single, or several, failures of any of several subsystems.

The invention discloses a method for controlling moisture of tobacco shreds at an outlet of a parallel-flow tobacco dryer, and relates to a production control method in the tobacco industry. The method is characterized in that: in a production phase, the required value of the moisture of the tobacco shreds at the outlet is taken as a target, the precedence of control and adjustment is determined according to the opening degree of a moisture draining air door and a hot wind air door, the temperature of hot wind and the temperature of a wall; the overall principle is firstly controlling and adjusting the parameters which have little impact on the internal quality of the tobacco shreds and the smoking and then controlling and adjusting the parameters which have great impact on the internal quality of the tobacco shreds and the smoking; the sequence is as follows: (1) first the opening degrees of the moisture draining air door and the hot wind air door are controlled and adjusted; (2) then the hot wind temperature is controlled and adjusted; (3) and finally the wall temperature is controlled and adjusted. The method for controlling moisture content of tobacco shreds has the advantage that the wall temperature is basically kept constant in the production process, which is beneficial to stabilizing and unifying the inner quality and style of the tobacco products. The method can provide a technical means for individualized production and classification processing of the cigarettes.

The invention discloses a feed regulating agent for producing low-cholesterol eggs and a feed containing the regulating agent. The feed regulating agent is prepared from a plurality of nutrients, a plurality of Chinese herbal medicine raw materials, metallothionein coarse powder and pine needle meal according to a certain ratio. The feed is prepared from the regulating agent and common feed raw materials according to a certain ratio. The feed regulating agent for producing the low-cholesterol eggs disclosed by the invention adopts a reasonable formula, has wide raw material source, and is low in cost, good in effect, simple and convenient to operate, and free of residue and pollution, and the method is easy to implement. No antibiotics and chemical medicine are added, the physiological function of a laying hen can be effectively improved, the immune function of the laying hen body can be enhanced, the egg yield and the egg quality of the laying hen are improved, especially the cholesterol content in the laying hen is obviously reduced, the culture benefits are improved, and the feed is especially applicable to large-scale production of the laying hen industry.

The invention relates to a feed regulation and control agent for producing DHA (docosahexaenoic acid)-rich chicken and feed containing the regulation and control agent. The feed regulation and control agent is prepared from a variety of Chinese herbal medicine raw materials, a variety of nutrients, metallothionein crude extraction powder and other biological active substances, as well as rhizoma dioscoreae powder according to certain proportions; and the feed is prepared from the regulation and control agent and the conventional feed according to certain proportions. The feed for producing the DHA-rich chicken, disclosed by the invention, has the advantages of reasonable formula, wide sources of the raw materials, low cost, easiness in operation of the method, simplicity and convenience in operation, no addition of any antibiotics and chemicals, no residues and no pollution, can effectively improve the physiological function of table poultry, enhance the immune function of organisms of the table poultry, improve the meat yield and meat quality of the table poultry and particularly obviously improve the DHA content in the chicken and the cultivation benefits, and is suitable for production of the table poultry in various types and various scales.

A method for operating a direct drive wind turbine including determining a temperature difference between at least two components of a bearing, comparing the temperature information with an upper threshold temperature difference between the at least two components of the bearing, limiting rotational speed of a rotor and / or an at least one rotatably supported wind turbine component coupled to the rotor to a value unlike zero yet, below a wind turbine specific nominal rotational speed of the rotor and / or below the wind turbine specific nominal rotational speed of the at least one rotatably supported wind turbine component coupled to the rotor and / or limiting electric power output of the generator to a value unlike zero yet, below a wind turbine specific nominal electric power output of the generator, if the temperature difference between the at least two components of the bearing increases above the upper threshold temperature difference, is provided.

The present invention is a process for dehydrating an alcohol to prepare a corresponding olefin, comprising:(a) providing a composition (A) comprising at least an alcohol having at least 2 carbon atoms, optionally water, optionally an inert component, in a dehydration unit,(b) placing the composition (A) into contact with an acidic catalyst in a reaction zone of said dehydration unit at conditions effective to dehydrate at least a portion of the alcohol to make a corresponding olefin,(c) recovering from said dehydration unit an effluent (B) comprising:at least an olefin,water,undesired by-products including aldehydes and light products,optionally unconverted alcohol(s),optionally the inert component,wherein,said composition (A)—providing step (a) comprises adding an effective amount of one or more sulfur containing compound capable to reduce the undesired by-products by comparison with a non introduction of such sulfur containing compound.The component introduced at step (a) can be chosen from the group consisting of thiols, sulfides, disulfides.