In an example, a method of butadiene sequestration includes receiving an input stream that includes butadiene. The method includes directing the input stream to a first sulfur dioxide charged zeolite bed for butadiene sequestration via a first chemical reaction of butadiene and sulfur dioxide to form sulfolene.

The invention discloses a start-up system for starting reforming hydrogen production device, the reforming hydrogen production device and the start-up system adopt methanol-water mixture as feedstock, comprising a feed riser pipe, a flame tray, an upper cover body and an igniter. The flame tray and the upper cover body are disposed on the feed riser pipe from the bottom up; the middle part of the upper cover body is provided with an aperture in communication with the feed riser pipe, the methanol-water mixture feedstock may flow from the feed riser pipe up to the aperture and be exuded from the aperture and spread around along the upper side surface of the upper cover body until flowing into the flame tray. The present invention has high ignition success rate, large methanol-water mixture burning areas and combustion flame, and can quickly restart the reforming hydrogen production device.

A plant or refinery may include equipment such as reactors, heaters, heat exchangers, regenerators, separators, or the like. Types of heat exchangers include shell and tube, plate, plate and shell, plate fin, air cooled, wetted-surface air cooled, or the like. Operating methods may impact deterioration in equipment condition, prolong equipment life, extend production operating time, or provide other benefits. Mechanical or digital sensors may be used for monitoring equipment, and sensor data may be programmatically analyzed to identify developing problems. For example, sensors may be used in conjunction with one or more system components to detect and correct maldistribution, cross-leakage, strain, pre-leakage, thermal stresses, fouling, vibration, problems in liquid lifting, conditions that can affect air-cooled exchangers, conditions that can affect a wetted-surface air-cooled heat exchanger, or the like. An operating condition or mode may be adjusted to prolong equipment life or avoid equipment failure.

The invention relates to a neutralization plant (100) comprising at least one reaction chamber (102) having a first feed (114) for an acid-containing product and at least one further feed (116) for a base-containing product, wherein at least one of the feeds (114, 116) comprises at least one valve means (118, 120) for controlling the inflow amount into the reaction chamber (102), wherein the ion controller apparatus (104, 204, 205) comprises at least one evaluation device (106, 206) set up for determining at least one actual ion concentration based on an actual pH of the mixture (122) present in the reaction chamber (102) and wherein the ion controller apparatus (104, 204) comprises at least one ion controller device (108, 208) comprising at least one ion controller (110, 210.1, 210.2, 211) set up for controlling the valve means (118, 120) according to the actual ion concentration and a target ion concentration.

A waterless decarboxylation device used to decarboxylate cannabis is described. For example, the device could include a product container to contain an amount of raw cannabis plant material, a heating container configured to surround and contact the product container, a heater in contact with the heating container, a foam layer surrounding the product container and heating container, at least one sensor configured to detect the temperature of the heating container, a lid that encloses the product container and fluidly seals it from the environment, and a controller configured to control power to the heater in response to signals sent from the at least one sensor indicating whether the heating container has reached a threshold temperature.

In a novel process for methanol production from low quality synthesis gas, in which relatively smaller adiabatic reactors can be operated more efficiently, some of the inherent disadvantages of adiabatic reactors for methanol production are avoided. This is done by controlling the outlet temperature in the pre-converter by rapid adjustment of the recycle gas, i.e. by manipulating the gas hourly space velocity in the pre-converter.

A system and method combine a first reactant with a second reactant to create a reaction product. A first pump is in fluid communication with a reaction vessel and a source of the first reactant. A second pump is in fluid communication with the reaction vessel and a source of the second reactant. A gas sparger is located in the reaction vessel, and the gas sparger is in fluid communication with a gas source for providing gas to the reaction vessel. A controller is configured to execute a program stored in the controller to: (i) receive a sensor signal based on a force exerted by the reaction vessel in a direction toward the sensor, and (ii) operate the first pump and the second pump to deliver to the reaction vessel the first reactant and the second reactant thereby causing a reaction that creates the reaction product.

A liquid fuel reformer includes a fuel vaporizer which utilizes heat from an upstream source of heat, specifically, an electric heater, operable in the start-up mode of the reformer, and therefore independent of the reforming reaction zone of the reformer, to vaporize fuel in a downstream vaporization zone.

A method of monitoring a solid component of a reactor feed stream in a polymer production system, comprising (a) measuring a turbidity of the reactor feed stream, wherein the reactor feed stream comprises a solid component of a polymerization catalyst system, and (b) translating the turbidity of the reactor feed stream into a concentration of the solid component in the reactor feed stream. A method of monitoring a solid component of a reactor feed stream in a polymer production system, comprising (a) measuring a turbidity of a precontactor feed stream, wherein the precontactor feed stream comprises a solid component of a polymerization catalyst system, and (b) translating the turbidity of the precontactor feed stream into a concentration of the solid component in a precontactor effluent stream, wherein the precontactor effluent stream comprises the reactor feed stream.

A chemical production assembly for producing an isocyanate. comprising n serially arranged units U (i), i=1 . . . n, n2. wherein a unit U(i) is for preparing a chemical product cp(i) at a preparation rate PR(i) by using, as starting material. a chemical product cp(i+1) preprared in the unit U(i+1) arranged upstream of said unit U(i), wherein said unit U(i) comprises an inlet means for receiving said chemical product cp(i+1) at an input rate IR(i). said unit U(i) being characterized by a nominal preparation rate PRN(i) and a nominal input rate IRN(i); and a unit U(i+1), i=1 . . . n-1, is for preparing the chemical product cp(i+1) and for supplying said chemical product cp(i+1) to the inlet means of the unit U(i) arranged downstream of said unit U(i+1) at a supply rate SR(i+1) with SR(i+1)=IR(i).