Methods and systems are provided for determining degradation of a particulate filter in an exhaust conduit. In one example, a method may include diverting exhaust gas to a secondary soot sensor assembly comprising a second filter downstream of a first filter, and determining degradation based on time intervals between subsequent filter regenerations of the second filter in the secondary soot sensor assembly.

The condensed water processing device determines (S2) whether the pH of condensed water stored in the condensed water tank is smaller than a threshold value (t). When the pH of condensed water is smaller than the threshold value (t), the supply quantity of urea water being supplied to the upstream side of the NOx catalyst is increased (S7) so that the supply quantity is larger than that in normal control (S4) executed when the pH of the condensed water is equal to or more than the threshold value (t).

Methods and systems are provided for determining degradation of a particulate filter in an exhaust conduit. In one example, a method may include diverting exhaust gas to a secondary soot sensor assembly comprising a second filter downstream of a first filter, and determining degradation based on time intervals between subsequent filter regenerations of the second filter in the secondary soot sensor assembly.

A system for recovering electrical energy and water from exhaust gasses. The system includes a thermoelectric generator to produce electricity from the waste heat of the exhaust gasses of internal combustion engines and the like. The exhaust is cooled by the thermoelectric generator, air cycle machine and other heat absorbing devise which, through work, reduce the exhaust gas temperature and promote condensation of the water.

The present disclosure provides an engine control device including: an adjustment section that adjusts a flow amount per unit time of exhaust gas from an engine; and a control section that, in a case in which a temperature below freezing point is detected by a temperature detection section that detects an external air temperature or an intake air temperature, a preceding engine operation duration is shorter than a first duration, and a value in a predetermined range in which water in an exhaust pipe can be drained by the flow amount being raised by a certain amount is detected by a value detection section that detects a value representing an acceleration, an accelerator opening or an engine rotation speed, controls the adjustment section so as to raise the flow amount by the certain amount until a second duration has passed from starting of the engine.

Methods and systems are provided for determining degradation of a particulate filter in an exhaust conduit. In one example, a method may include diverting exhaust gas to a secondary soot sensor assembly downstream of a first filter, comprising a second filter and determining degradation based on time intervals between subsequent filter regenerations of the second filter in the secondary soot sensor assembly.

A series of systems are disclosed for the capture of harmful emissions, and subsequent use of the captured gasses e.g. in combustion. Engines or other combustors are operated to increase the production of more useful emissions such as Carbon Monoxide CO and Oxides of Nitrogen NOx. Also disclosed are methods for using wasted heat from engines, brakes and shock absorbers, and for cooling solar panels for increased efficiency. Fuel pumps are disclosed with additional tubing to remove captured exhaust from vehicles, as well as supplying additional vehicle fluids. Monitoring systems may track emissions reduced or removed, and may be used as an accreditation/trading system.

Systems and methods for treating water containing PFAS are disclosed. Adsorption media may be used to remove PFAS from water. An eluent may release PFAS from loaded adsorption media to form a waste stream. An internal combustion engine may be used to mineralize PFAS in the waste stream.

A system for mobile carbon capture, preferably including a capture module, a regeneration module, and a storage module 130. The system can optionally include a thermal control module and/or a dehumidifier. A method for mobile carbon capture, preferably including adsorbing a target species, desorbing the target species, and storing the target species. The method can optionally include pre-treating input gas, offloading stored species, and/or regenerating desiccators.

A method and conditioning system for conditioning exhaust gas are provided. The conditioning system includes one or more heat removal systems for removing heat from an exhaust gas. The conditioning system also includes a condensate removal system fluidly coupled with, and positioned downstream of, the one or more heat removal systems. The condensate removal system is operable to remove moisture from the exhaust gas. In some variants, the conditioning system further includes one or more fluid chambers fluidly coupled with, and positioned downstream of, the condensate removal system. Each fluid chamber defines an interior in which a capture medium is contained. The cooled, moisture-depleted exhaust is selectively distributed to the fluid chambers to allow for harvesting or capture of a set of target species from the exhaust gas.